Korean Journal of Community Nutrition

Research Articles

[English]
Ultra-processed food intake and dietary behaviors in Korean adolescents: a cross-sectional study based on the 2019–2023 Korea National Health and Nutrition Examination Survey: Jin-A Kim, Sim-Yeol Lee; Korean J Community Nutr 2025;30(6):410-418. Published online December 31, 2025; DOI: https://doi.org/10.5720/kjcn.2025.00297

Abstract PDF: Objectives
This study aimed to investigate the intake of ultra-processed foods (UPF) and dietary behaviors in Korean adolescents.
Methods
This study used 24-hour dietary recall data from the Korea National Health and Nutrition Examination Survey (2019–2023). In total, 1,720 adolescents aged 12–18 years were included in this study and categorized into quartiles based on the percentage of energy intake from the UPF. Nutritional status, contributing subgroups of UPF intake, and healthy dietary practices were examined using Health Plan 2030 indicators across quartiles of UPF intake.
Results
The nutrient intake of protein, vitamins (A, B1, B2, niacin), and minerals (iron, potassium) was the lowest in the fourth quartile of UPF intake compared with the first quartile (P for trend < 0.001), whereas calcium intake increased across quartiles, from 47.68% in the first quartile to 58.51% in the fourth quartile (P for trend < 0.001). The main contributing subgroups to UPF intake differed across quartiles of UPF intake, and the highest contributing subgroups were ‘instant noodles and dumplings,’ ‘desserts, cakes, and ice cream,’ and ‘sauces and seasonings.’ Healthy dietary practices were the lowest in the fourth quartile (22.18%, P < 0.001), and the proportions of appropriate fat and fruit/vegetable intake were significantly lower in the higher quartiles of UPF intake (P < 0.001).
Conclusion
This study suggests that a lower UPF intake was associated with better nutritional status and healthy dietary practices in Korean adolescents. These findings provide fundamental evidence for promoting healthier food choices and balanced dietary practices.

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[Korean]
Effects of primary caregivers’ food literacy, social support, food environment, and household income on the nutritional status of school-aged children: a cross-sectional study: Seyeon Park, Ji-Yun Hwang, Sohyun Park, Hyun Joo Ryou, Jieun Oh; Korean J Community Nutr 2025;30(5):352-363. Published online October 31, 2025; DOI: https://doi.org/10.5720/kjcn.2025.00248

Abstract PDF: Objectives
The dietary habits of school-aged children play a critical role in their growth and development, and are strongly influenced by the home environment. Household income is closely associated with caregivers’ food literacy, social support, and food environment. This directly affects the nutritional status of children. This study aimed to provide evidence to inform policies and educational programs for improving dietary habits in children, and to establish a foundation for tailored support strategies for low-income families.
Methods
This cross-sectional study included 846 primary caregivers of school-aged children from 17 regions across Korea, recruited through an online survey. Household income, caregivers’ food literacy, social support, and food environment were assessed. Nutritional status in children was measured using the Nutrition Quotient for Children (NQ-C). Statistical analyses included descriptive statistics, chi-square tests, one-way analysis of variance (ANOVA), analysis of covariance (ANCOVA), correlation analyses, and multiple linear regression.
Results
Caregivers from higher income households demonstrated significantly greater food literacy and social support (P < 0.001). Children from these households showed high balance scores and a large proportion of these children were in the “high” NQ-C grade. The NQ-C score in children was positively correlated with food literacy (r = 0.425), social support (r = 0.471), and the food environment (r = 0.235) (P < 0.001). Multiple regression analysis showed that food literacy (β = 0.256) and social support (β = 0.348) were significant predictors of nutritional status in children.
Conclusion
This study confirmed that the nutritional status in children is not only determined solely by household income but is also mediated by caregivers’ food literacy, social support, and food environment. These findings highlighted the limitations of providing only economic support. The findings underscore the need for multifaceted interventions such as strengthening parental nutrition education, expanding social support networks, and improving access to healthy foods.

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[Korean]
Survey on consumer perceptions, health benefits and preferences of kindergarten and school foodservices in Korea, including related keywords reported in newspaper: a mixed-methods study: Gyoungok Gang, Chaewon Park, Hyeja Chang; Korean J Community Nutr 2025;30(4):309-320. Published online August 29, 2025; DOI: https://doi.org/10.5720/kjcn.2025.00199

Abstract PDF: Objectives
With the rapid development of social culture, the perception of kindergarten and school foodservice, as well as opinions on its health benefits, has changed significantly. However, research on this topic remains scarce. We conducted a survey in South Korea on consumers’ perceptions, healthiness, and preferences regarding kindergarten and school foodservice.
Methods
With the nationwide cooperation of 17 city and provincial education offices, online and offline surveys were conducted targeting the parents of kindergarten and lower-grade elementary school children, as well as upper-grade elementary, middle, and high school students. In addition, keywords in newspaper reports were analyzed using the Big Kinds platform. A total of 532 valid questionnaires were collected, and statistical analysis was performed using IBM SPSS Statistics version 27.0 (IBM Co.).
Results
The average age of the parents and students was 40 and 12.5 years, respectively, with 36.4% of the students attending schools in the Seoul and Gyeonggi areas. The main keywords reported in newspaper articles, as analyzed using the Big Kinds platform, were “eco-friendly agricultural products,” “food ingredients,” “safety,” and “marine products.” The perception of kindergarten and school foodservice was very positive, especially regarding the attributes of safe ingredient use (4.44), menu variety (4.29), cafeteria cleanliness (4.31), cleanliness of plates, spoons, and utensils (4.24), thorough hygiene management (4.2), nutritional excellence (4.24), and support for proper eating habits (4.18). The healthiness of school foodservice was highly rated, although there is still room for improvement in terms of “not serving fried foods more than twice a week”. In terms of preference for school meals, the most preferred items were meat side dishes, followed by chicken, noodles, fried food, beverages, and bread. In contrast, soybean paste soup, vegetables, and mixed-grain rice received relatively low preference.
Conclusion
The results described above may be used to develop educational programs or policies that inform students and parents about the goals of school foodservice and help address common misunderstandings.

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[English]
Safety education status and needs priorities of Korean military food service personnel using the Borich Needs Assessment and the Locus for Focus model: a cross-sectional study: Jeongeun Park, Eunsil Her; Korean J Community Nutr 2025;30(4):261-273. Published online August 29, 2025; DOI: https://doi.org/10.5720/kjcn.2025.00185

Abstract PDF: Objectives
Since the enactment of the Serious Accidents Punishment Act in Korea in 2021, the importance of safety management in food service facilities has increased. This study was conducted to examine the status of safety education and to identify educational needs for safety accident prevention among army food service personnel.
Methods
This study included 157 food service personnel from Army units located in Gyeongsangnam-do. Participants were divided into two groups based on the daily number of meals served. Demographic characteristics, the status of safety education, and priority for safety accident prevention education were evaluated.
Results
A total of 97.5% of participants received safety education, with 60.8% attending at least monthly. “Lecture” (63.4%) was the most commonly used educational method. The preferred educational methods were “Lecture” (23.5%) and “Counselling” (23.5%), showing significant group differences (P < 0.001). A total of 79.6% of participants reported applying the educational content in their performance. The mean importance score for safety accident prevention (4.78) was higher than the performance score (4.44), with significant differences between the two groups observed in the importance scores (P < 0.05). “Slip & burn” had the highest importance score, while “Electric shock and fire” had the highest performance score. The educational needs analysis revealed that the highest priority item for the < 100 meals group was “When moving heavy items, an assistive device or assistance from colleagues should be utilized”, while for the ≥ 100 meals group, it was “When using a vegetable cutter or grinder, use an exclusive stick.”
Conclusion
This study can serve as a foundational database for developing customized safety education programs tailored to Korean army food service personnel.

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[Korean]
Analysis of the relationship between foodservice staffing and foodservice quality in elderly care facilities in Korea: a cross-sectional study: Hyeonjeong Kim, Jinhee Kwon, Jungsuk Lee; Korean J Community Nutr 2025;30(4):296-308. Published online August 29, 2025; DOI: https://doi.org/10.5720/kjcn.2025.00122

Abstract PDF: Objectives
This study was performed to investigate the relationship between foodservice staffing and foodservice quality in elderly care facilities.
Methods
Data was obtained from the Korean Long-term Care Institute Database and used to analyze 2,084 elderly care facilities operating on-site foodservice. The presence of dietitians and staffing levels for cooking personnel were analyzed by categorizing size according to staffing criteria. Foodservice quality was assessed using food sanitation management and meal service provision as indicators. Descriptive statistical analysis, chi-square test, Fisher’s exact test, and Cochran-Mantel-Haenszel test were conducted to analyze relationships between staffing level and foodservice quality.
Results
Presence of a dietitian correlated with food sanitation management and meal service provision in groups with 30 or more recipients (P = 0.027, P = 0.049). Elderly care facilities with dietitians had better foodservice quality. After adjusting for size, the presence of dietitians was also found to correlate with food sanitation management (P = 0.024). Staffing levels for cooking personnel were found to correlate with meal service provision only in groups with 38 to 62 recipients. Institutions with larger staffs provided better meal service quality compared to those with basic staffing.
Conclusion
Inclusion of a dietitian and cooking staff size each contribute to enhanced foodservice quality in elderly care facilities, with dietitian inclusion showing a particularly significant association with food sanitation management. These findings suggest the need to revise current staffing and related regulatory standards to optimize deployment of foodservice personnel in elderly care settings. Future studies should focus on developing effective policies for securing qualified foodservice staff and establishing robust quality management systems to enhance overall foodservice quality in long-term care facilities.

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Review

[Korean]
Current status of nutrition education media and its utilization in providing customized nutrition information for older adults in Korea: a scoping review based on the transtheoretical model and food literacy: Seojin Yun, Jiwon An, Kirang Kim; Korean J Community Nutr 2025;30(3):175-182. Published online June 30, 2025; DOI: https://doi.org/10.5720/kjcn.2025.00094

Abstract PDF Supplementary Material

Objectives
This study analyzes the status of nutrition education media among Korean older adults based on the transtheoretical model (TTM) and their food literacy to propose effective strategies for the development and utilization of educational media.
Methods
A literature review was conducted using The Joanna Briggs Institute (JBI) protocol. The literature search was performed using government and local government agency websites, as well as those of affiliated institutions, health and nutrition-related academic societies, and academic search engines. A total of 144 studies were identified, and after a cross-evaluation by two reviewers based on the literature selection criteria, 73 studies were included in the final analysis.
Results
Among the types of nutrition education media, card news had the highest proportion, followed by video media. The development and distribution of nutrition education media for older adults were primarily carried out by government and local government agencies, as well as related affiliated institutions, accounting for 80.8% (n = 59) of the total. When nutrition education topics in the media were categorized according to the stages of behavior change in the TTM, the largest proportion, 64.6% (n = 61), was applicable to the precontemplation and contemplation stages. When categorized by food literacy domains, all topics fell under the categories of nutrition and safety.
Conclusion
Nutrition education media for older adults were found to be primarily focused on knowledge acquisition and information delivery, making them mostly applicable to the precontemplation and contemplation stages of behavior change. The concept of food literacy addressed in the different types of media was limited to the domains of nutrition and safety, with no content covering the cultural and relational domains or the social and ecological domains. For tailored nutrition education, it is necessary to develop diverse educational materials that comprehensively reflect each stage of the TTM and all aspects of food literacy.

Citations

Citations to this article as recorded by

Toward the development of a digital self-nutrition management education program for elderly: findings from focus groups study
Hae-song Yoo, Jin-myong Lee, Min-sun Jeon
Korean Journal of Community Nutrition.2025; 30(6): 431. CrossRef

1,878 View
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1 Crossref

Research Articles

[English]
Understanding the charactersitics and types of single-person households based on food purchase frequencies in Korea: a cross-sectional study using the 2023 Consumer Behavior Survey for Foods: So-Yun Kim, Youngmin Nam, Jong-Youn Rha, Haerang Lee; Korean J Community Nutr 2025;30(1):27-39. Published online February 28, 2025; DOI: https://doi.org/10.5720/kjcn.2025.00031

Abstract PDF

Objectives
This study investigated the differences in food purchase frequency among single-person households by gender and age group and explored the characteristics of single-person household groups according to their food purchase patterns.
Methods
Utilizing data from the 2023 Consumer Behavior Survey for Foods conducted by the Korea Rural Economic Institute, this study examined food purchase frequencies among 966 single-person households. Data were analyzed using Rao-Scott chi-square tests, ANCOVA, ANOVA, and K-modes hierarchical cluster analysis.
Results
Significant differences were observed in the food purchase frequencies of single-person households for fresh and convenient food. Women displayed higher purchase frequencies for fish, vegetables, and fruits, whereas men showed higher purchase frequencies for convenient foods (P < 0.005). Single-person households aged 39 years and younger exhibited lower purchase frequencies for vegetables (P < 0.005) and fish (P < 0.001) and substantially higher frequencies of convenient food purchases (P < 0.001). Additionally, this study identified three distinct single-person household groups based on food purchase pattern: the “nutrition-conscious” group, which exhibited high purchase frequency for fresh foods; the “convenience-seeking” group, which showed high purchase frequency for all types of convenient foods; and the “passive food consumer” group, which displayed relatively low purchase frequency for both fresh foods and convenient foods. The socio-demographic characteristics of single-person households differed significantly across these three groups, with the “passive food consumer” group and “convenience-seeking” group exhibiting lower healthy eating competency (MN(nutrition-conscious group) = 3.68, MP(passive-food-consumer group) = 3.40, MC(convenience-seeking group) = 3.52, P < 0.001), safe eating competency (MN = 3.87, MP = 3.57, MC = 3.77, P < 0.001), and satisfaction (MN = 3.36, MP = 3.23, MC = 3.25, P = 0.04) than the “nutrition-conscious” group.
Conclusion
This study underscores the need for targeted nutrition programs to address the unique needs of single-person households depending on their characteristics. Specifically, this study highlights the importance of targeted interventions for “convenience-seeking” and “passive food consumer” to promote dietary competency and encourage healthy dietary behavior.

Citations

Citations to this article as recorded by

Secular trends in dietary patterns among Korean adults: using data from the 2007–2022 Korea National health and nutrition examination survey
Eunyoung Tak, Juhae Kim, Heejin Lee, Minji Kang
Nutrition Journal.2025;[Epub] CrossRef

11,583 View
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1 Crossref

[Korean]
Analysis of pork consumption attribute factors by consumer lifestyle in Korea: a cross-sectional study: Jounghee Lee, Juhyun Lee, Wookyoung Kim; Korean J Community Nutr 2025;30(1):75-88. Published online February 28, 2025; DOI: https://doi.org/10.5720/kjcn.2024.00332

Abstract PDF: Objectives
This study aims to identify and analyze how different South Korean lifestyles impact attitudes towards pork consumption.
Methods
We implemented a cross-sectional survey targeting 705 adult consumers in South Korea using hierarchical and K-means cluster analyses. Respondents were classified into three relevant lifestyles: (1) domestic preference, (2) price-sensitive, and (3) quality-experience-oriented. The importance-performance analysis was employed to evaluate discrepancies between how they rated pork consumption using factors of “importance” and “satisfaction”. We employed Borich’s needs assessment and the Locus for Focus model to prioritize management areas.
Results
The research findings highlight that unpleasant odor/smell (Q7) and hygiene (Q1) were common key areas for management across all consumer groups, emphasizing their importance in enhancing pork consumption satisfaction. Among the groups, the domestic preference group showed high importance-performance discrepancies in attributes like expiry date (D2), suggesting a need for strengthened trust in domestic pork distribution and information transparency. The price-sensitive group prioritized economic factors, with fat thickness (Q8) identified as an essential management area. The quality-experience-oriented group emphasized sensory qualities such as juiciness (Q6) and meat color (Q5), with off-flavors (Q7) displaying the largest discrepancy. These results show the significant role of sensory attributes in consumer satisfaction.
Conclusion
This study demonstrated the multidimensional nature of pork consumption behavior, emphasizing the need for tailored strategies across consumer groups. Managing hygiene (Q1) and reducing off-flavors (Q7) are critical for all segments, while group-specific strategies include managing sensory quality for the quality-experience-oriented group, providing product information (D2) to increase trust for the domestic preference group, and emphasizing value for money for the price-sensitive group.

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[English]
Nutrition quotient for preschoolers and key impacting factors in Korea: a cross-sectional study on food literacy, social support, and the food environment of primary caregivers: Danbi Gwon, Ji-Yun Hwang, Jieun Oh; Korean J Community Nutr 2025;30(1):16-26. Published online February 28, 2025; DOI: https://doi.org/10.5720/kjcn.2024.00311

Abstract PDF

Objectives
This study evaluated the nutrition quotient for preschoolers (NQ-P) and analyzed the impact of key factors, such as caregivers’ food literacy, social support, and food environment, on the eating habits of preschool children in Korea. This study also sought to provide foundational data for developing tailored nutrition education programs by identifying the nutrition education needs of caregivers.
Methods
This study was conducted among caregivers of preschool children (aged 0–6 years) using an online self-administered survey conducted from August 22 to August 28, 2023. A total of 1,116 survey responses were analyzed. This study assessed children’s NQ-P score, caregivers’ food literacy, social support, food environment, and nutritional education needs. Data were analyzed using SPSS 29.0 (IBM Co.).
Results
The average NQ-P score for preschool children was 52, showing a tendency for the balance score to decrease and the moderation score to increase with age. Children from rural and low-income areas exhibited significantly lower NQ-P scores. Caregivers’ food literacy was higher in urban and higher-income groups. Multiple regression analysis revealed that social support, food literacy, income, and food environment significantly affected children's NQ-P scores. The effectiveness of nutrition education varied based on the income level, with nutrition education on healthy eating being the most preferred topic for preschool children.
Conclusion
This study confirmed that caregivers’ food literacy and social support significantly affected preschool children’s nutritional status. This suggests a need for tailored nutritional education and dietary support policies, particularly for low-income and rural populations.

Citations

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Cluster-Based Evaluation of Dietary Guideline Adherence and Food Literacy Among Adolescents: Implications for Tailored Diets
Jimin Lim, Jieun Oh
Nutrients.2026; 18(2): 241. CrossRef
Development and usability evaluation of a web-based healthy eating practice questionnaire for Korean preschool children: a child–parent dyad approach
Young-Hee Han, Dawon Park, Dahyeon Kim, Saerom Shin, Eun Yeol Woo, Hye-Kyung Park, Taisun Hyun
Nutrition Research and Practice.2026; 20(1): 132. CrossRef
Nutrition literacy and socio-demographic determinants among Chinese women of childbearing age
Jing-Jing Meng, Jun Chen, Li Pu, Yan Zhu, Yan Zuo, Fang Wang, Li Chang, Yi-Ying He, Jian-Jun Zhang, Zhi-Lan Bai, Si-Qin Sun, Jie Liu, Jia Shi
Frontiers in Public Health.2026;[Epub] CrossRef
Effects of primary caregivers’ food literacy, social support, food environment, and household income on the nutritional status of school-aged children: a cross-sectional study
Seyeon Park, Ji-Yun Hwang, Sohyun Park, Hyun Joo Ryou, Jieun Oh
Korean Journal of Community Nutrition.2025; 30(5): 352. CrossRef

3,358 View
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4 Crossref

[Korean]
Co-occurrence network and pattern of school lunch using big data and text-mining using data from the 2021–2023 school meal menu information on the NEIS open educational information portal: an exploratory study: Hyeyun Kang, Jimi Kim; Korean J Community Nutr 2024;29(6):514-527. Published online December 31, 2024; DOI: https://doi.org/10.5720/kjcn.2024.00297

Abstract PDF Supplementary Material

Objectives
This study aimed to use big data from elementary, middle, and high school lunches to determine the primary food groups and menu items that contribute to lunch meals through text-mining and investigate the variations in food groups and menu composition patterns across different grade levels.
Methods
Between 2021 and 2023, a total of 7,892,456 lunch menus from 17 cities and provinces in South Korea were analyzed using big data from the National Education Information System (NEIS) system. After undergoing text preprocessing for text-mining, the collected menus were classified into 34 food groups based on primary ingredients and cooking methods, excluding the types of rice and kimchi. Subsequently, analyses of term frequency, term frequency-inverse document frequency (TF-IDF), centrality, and co-occurrence networks were performed on the food group and menu data.
Results
According to the TF-IDF, the most frequent food group across all grade levels was soup and seasoned vegetables, whereas milk was the most frequently provided menu. As the grade level increased, the frequency of grilled and fried food increased. In elementary schools, fruits exhibited the highest centrality, whereas soup had the highest centrality in middle and high schools. Co-occurrence frequency revealed that the soup-fruit combination was the most common in elementary schools, whereas soup and seasoned vegetables were most frequently paired in middle and high schools. The co-occurrence network of food groups and menus further indicated that menus regularly provided as standard meals and those frequently offered as special meals formed distinct communities.
Conclusion
This study investigated the food groups and menu provision patterns in school meals through text-mining techniques applied to large-scale school lunch. The findings may contribute in enhancing the quality of nutritional management, school foodservice, and menu composition of school meal programs.

Citations

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Dietary patterns and diet quality among adults in their 20s according to rice consumption: a co-occurrence network analysis using the Korea National Health and Nutrition Examination Survey (KNHANES) 2019–2021
Eun-kyung Kim, Jin-Young Lee, Yong-Seok Kwon, Minji Kang
Journal of Nutrition and Health.2025; 58(6): 571. CrossRef

2,184 View
51 Download
1 Crossref

Research Note

[English]
A pilot investigation of a combined food literacy and exercise program for college students: a one-group pre-post intervention study: Minjeong Jeong, Jinhyun Kim, Dahye Han, Eunjin Jang, Kyoungho Choi, Sohyun Park; Korean J Community Nutr 2024;29(6):455-466. Published online December 31, 2024; DOI: https://doi.org/10.5720/kjcn.2024.00248

Abstract PDF

Objectives
A campus-based intervention to enhance food literacy (FL) and establish exercise habits among college students was developed and the program’s effectiveness was evaluated.
Methods
The 13-session program was developed based on the transtheoretical model and social cognitive theory. Junior and senior students majoring in food and nutrition and physical education were asked to participate as mentors, with freshmen and sophomores from varied majors as mentees. The program encompassed food, nutrition, and exercise lessons including cooking sessions. Data were collected via pre- and post-program surveys using a questionnaire consisting of items on FL and nutrition behaviors and physical fitness measurements.
Results
Among 39 participants (35.9% male, 64.1% female), the overall FL score increased significantly from 64.1 to 70.6 post-program (P = 0.001). Significant increases were observed in the nutrition and safety (P < 0.001), cultural and relational (P = 0.023), and socio-ecological (P = 0.001) domains, as well as knowledge (P = 0.001), self-efficacy (P = 0.013), attitude (P < 0.001), and behavior (P = 0.005) items in three domains of FL. Additionally, meal duration increased significantly (P = 0.007) and sit-up performance among female showed a meaningful change (P = 0.046). Changes in dietary behaviors significantly progressed (P = 0.015) while that in exercise habits approached a marginal significance (P = 0.053) after the intervention.
Conclusion
The results reveal positive changes in FL and some modifications in eating habits, although the program had limited effects on physical activity and fitness measurements. These findings suggest that strategic approaches to foster exercise behavior changes in college students are required. This pilot program can serve as foundational data for improving and expanding multicomponent health promotion programs for this population.

Citations

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The Dragon Fruit Advantage: Exploring University Students’ Experiences and Perceptions of a Targeted Nutrition Education Module
Adelfa Silor, Faith Stephanny C. Silor
Seminars in Medical Writing and Education.2025; 4: 924. CrossRef

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1 Crossref

Research Articles

[Korean]
Food purchase patterns, food policy recognition, and food environment satisfaction among adults in Jeju, Korea, according to food security: a cross-sectional study: Sumin Kim, Youjeong Jang, Hyunji Ham, Hanbin Ko, Insuk Chai, Kyungho Ha; Korean J Community Nutr 2024;29(5):406-417. Published online October 31, 2024; DOI: https://doi.org/10.5720/kjcn.2024.00012

Abstract PDF Supplementary Material: Objectives
Recently, food insecurity has been a major public health issue along with the food crisis caused by COVID-19, climate change, and the polarization of food supply due to socioeconomic disparities. Food insecurity is known to be related to the food choices and environment of the consumer. Therefore, this study aimed to evaluate the food security statuses of adults in Jeju and investigate their food purchase patterns, food policy recognition, and food environment satisfaction.
Methods
Based on data from the 2022 Jeju Food Survey, 346 adults aged ≥19 years in Jeju were classified into food security and insecurity groups (quantitatively and qualitatively) using the questionnaire. Food purchase patterns, including purchasing frequency, items, and reasons, were surveyed for local and eco-friendly foods. The recognition and necessity of several food policies and satisfaction with diet and food environment (availability, accessibility, affordability, accommodation, and acceptability) were measured using the Likert scale.
Results
Among the total participants, 47.4% were in the food insecurity group. The frequency of purchasing local and eco-friendly foods did not significantly differ by food security status. The insecurity group exhibited a higher recognition rate of basic rights to food (36.0%) than the security group (24.7%, P = 0.023). The recognition and necessity of specific food policies did not significantly differ by food security status, except for the policy of promoting food communities, for which the food security group exhibited higher recognition than the food insecurity group did (P = 0.004). The food insecurity group exhibited significantly lower scores regarding satisfaction toward diet and food environment factors (P < 0.05 for all).
Conclusions
Overall, the food security group reported higher satisfaction with their diet and food environment than the food insecurity group. Further in-depth studies to investigate the determinants of food insecurity and effective promotional strategies for food policies are needed.

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[English]
Associations between the symptoms of gastroesophageal reflux disease and dietary and lifestyle behavior among young Korean adults: a preliminary cross-sectional study: Soheun Shim, Jeong-Hwa Choi, Young-Ran Heo; Korean J Community Nutr 2024;29(5):396-405. Published online October 31, 2024; DOI: https://doi.org/10.5720/kjcn.2024.00011

Abstract PDF: Objectives
Gastroesophageal reflux disease (GERD) is a clinical condition caused by esophageal tissue damage resulting from the reflux of stomach or duodenal contents. An increasing number of GERD cases have been reported recently; however, research on this population, especially young adults, is lacking. This study aimed to investigate the dietary and lifestyle factors associated with GERD symptoms in young Korean adults. Methods: A total of 202 individuals (19–34 years old) living in Gwangju were surveyed using a questionnaire to examine their general characteristics, lifestyle, and dietary behaviors. GERD symptoms were investigated using the gastroesophageal reflux disease questionnaire (GerdQ). The participants were grouped into normal (GerdQ score ≤ 4) and caution (GerdQ score ≥ 5), and their characteristics were analyzed according to the group. Results: The findings suggested 15 participants (7.4%) belonged to the GERD caution group. More non-office workers were in the caution group than in the normal group (P < 0.05). The participants’ smoking, physical activity, sleep duration, and pillow height were not significantly different between the GERD phenotypes; however, the caution group consumed alcohol more frequently than the normal group (P < 0.001). The analyses of the participants’ eating behaviors revealed that the frequency of overeating, late-night snacking and chocolate consumption was significantly higher in the caution group (P < 0.001). Conclusion: Lifestyle and dietary behaviors were associated with GERD symptoms in young Korean adults. Further studies with larger cohorts are required to confirm these findings.

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[Korean]
The needs and prioritization of nutrition and dietary support for individuals with disabilities: an exploratory study: Jong Eun Park, Yu Jin Kim, So Young Kim, Jong Hyock Park; Korean J Community Nutr 2024;29(5):431-443. Published online October 31, 2024; DOI: https://doi.org/10.5720/kjcn.2024.00009

Abstract PDF

Objectives
Based on a survey of officers, social workers, and dietitians involved in managing nutrition and welfare policies or projects for vulnerable groups in local governments or private welfare institutions, this study aimed to assess the need for nutritional and dietary support policies and programs for persons with disabilities (PWD), as well as to identify appropriate support measures. Methods: An online survey was conducted from March 2 to 15, 2021. The survey included 20 questions exploring perspectives on the nutritional status of PWD, their need for nutritional and dietary support policies and programs, and the prioritization of appropriate support measures. A total of 132 responses were analyzed. Results: Approximately 68.9% of the respondents rated the nutritional status of PWD as “bad” or “very bad.” A substantial number identified “difficulty in purchasing ingredients, cooking, and preparing meals independently due to disability,” and “limited knowledge about nutrition and recipes necessary for maintaining a healthy and balanced diet” as the primary challenges in the dietary and nutritional management of this population. Additionally, 97.0% of the respondents deemed that the introduction of nutritional and dietary support policies and programs for PWD was “needed” or “very much needed.” Priority strategies to implement and strengthen these policies and systems included the “development of customized programs and services tailored to the needs and demands of the target population” and the “establishment of a dedicated department with specialized personnel.” Conclusion: Comprehensive nutritional and dietary support policies and programs should be actively implemented to ensure a healthy and stable diet for PWD, tailored to meet their actual needs and demands.

Citations

Citations to this article as recorded by

Development of a standard nutrition management model algorithm for personalized care in social welfare facilities for the disabled
Su-Jin Lee, Ji-Won Kang, Sil Ah Kim, Kirang Kim, Sohyun Park, Jieun Oh, Hyunjoo Ryou, Ji-Yun Hwang
Journal of Nutrition and Health.2025; 58(5): 498. CrossRef
Factors associated with nutritional risk among disabled persons in the Republic of Korea: a cross-sectional study using 2020 Disability and Life Dynamics Panel
Seong-Ah Kim, Seul Ki Choi
Korean Journal of Community Nutrition.2025; 30(5): 364. CrossRef

2,847 View
125 Download
2 Crossref

[English]
Exploring the customer perceived value of online grocery shopping: a cross-sectional study of Korean and Chinese consumers using Means-End Chain theory: Xinyu Jiang, Hyo Bin Im, Min A Lee; Korean J Community Nutr 2024;29(4):318-335. Published online August 31, 2024; DOI: https://doi.org/10.5720/kjcn.2024.00007

Abstract PDF

Objectives
Despite the growing market share of online grocery shopping, there is a need to understand customer perceived value due to the ongoing advancements in information technology. This study explores the connections between attributes, consequences, and values. Additionally, it conducts a cross-country comparison of consumers’ online grocery shopping behaviors to gain a deeper understanding of consumer market segments and any potential variations among them.
Methods
Data was collected through an online questionnaire survey conducted from May 1 to 15, 2024, targeting 400 consumers in Seoul, Korea, and Shanghai, China, who have experience with online grocery shopping. The survey utilized the Means-End Chain theory and association pattern technique hard laddering. Data collation and analysis were conducted using the IBM SPSS Statistics 28.0 program. The LadderUX software was employed to analyze the links between attributes, consequences, and values and create the consumer purchasing process’s implication matrix and hierarchical value map (HVM).
Results
The study identified key attributes that influence online grocery shopping decisions, including delivery service, price, freshness, and quality. Korean consumers demonstrated a higher sensitivity to price (19.0%) and delivery service (17.0%). In contrast, Chinese consumers prioritized delivery service (15.0%) and after-sales service (14.8%). Commonly cited consequences included time saving (12.6% for Koreans, 11.3% for Chinese), whereas prevalent values encompassed convenience (36.8% for Koreans, 19.6% for Chinese) and economic value (26.6% for Koreans, 14.7% for Chinese). The HVM underscored these insights, highlighting diverse consumer preferences and country-specific nuances.
Conclusions
The findings highlight the current state of online food consumption and consumers’ value systems, revealing variations among countries. These findings offer empirical insights that can be used to create customized global marketing strategies that resonate with various consumer preferences and market dynamics.

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Beyond the stage: how performing arts tourism shapes tourist perceptions and destination image
Islam Elbayoumi Salem, Mohammed Ali Bait Ali Sulaiman, Enrico di Bella, Sara Preti, Mohamed Kamal Abdien, Ahmed Magdy
Journal of Hospitality and Tourism Insights.2026; 9(1): 375. CrossRef

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1 Crossref

[English]
Total sugar intake and its contributed foods by age groups in Koreans using the 8th (2019–2021) Korea National Health and Nutrition Examination Survey: a cross-sectional study: Hyejin Yu, Sang-Jin Chung; Korean J Community Nutr 2024;29(3):222-233. Published online June 30, 2024; DOI: https://doi.org/10.5720/kjcn.2024.29.3.222

Abstract PDF: Objectives
This study was conducted to investigate the status of total sugar intake and contributing foods in Korea according to age groups.
Methods
This study used 24-hour dietary recall data from the 8th Korea National Health and Nutrition Examination Survey (2019–2021) to investigate the nutritional and total sugar intake status among Koreans. A total of 18,338 research participants (≥3 years old) were included in this study. To analyze the types of foods contributing to total sugar intake, these foods were categorized into 15 types. Moreover, we examined the total sugar intake and ranked the most consumed foods by age groups (3–11 years, 12–18 years, 19–34 years, 35–49 years, 50–64 years, over 65 years). A survey procedure was employed for statistical analysis.
Results
The energy intake ratio from total sugars was approximately 12%–15%, which was within the recommended range. However, the proportion of individuals consuming total sugar exceeding 20% of their total caloric intake is nearly 20%, raising concerns about excessive sugar consumption. Furthermore, the percentage of participants whose intake of sugar from processed foods exceeded 10% of their total calories was highest in the 12–18 age group at 37.1%, followed by the 3–11 age group at 35.2%, and the 19–34 age group at 34.0%. Carbonated drinks, cola, and cider were the primary foods consumed by children and adolescents (3–18 years old) and young adults (19–34 years old). For middle-aged and older adults, mixed coffee with sugar and cream was a prominent contributor to sugar intake.
Conclusions
This study investigated sugar consumption patterns among Koreans, finding the principal foods contributing to this intake. Identifying these contributors is pivotal, given their potential impact on public health.

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[English]
Developing educational videos to inform rightly about school foodservice from kindergarten to high school: a case study: Gyoungok Gang, Chaewon Park, Haejin Kang, Wan Soo Hong, Yoo Kyoung Park, Sook Hee Choi, Seung Hye Kim, Jieun Choi, Jihyun Park, Hyeja Chang; Korean J Community Nutr 2024;29(2):97-113. Published online April 24, 2024; DOI: https://doi.org/10.5720/kjcn.2024.29.2.97

Abstract PDF: Objectives
Since the enactment of the School Nutrition Act in 1981, school lunch programs in South Korea have grown quantitatively and qualitatively with a current student participation rate of 99.8%. Nonetheless, educational materials are needed to reduce misunderstanding and ignorance about school lunch programs. This study aimed to develop 3 educational videos that help students of various ages (kindergarteners/lower-grade elementary, upper-grade elementary, and secondary school, respectively), understand the school lunch program.
Methods
A scenario was created, was made, and the opinions on the scenario from experts in foodservice sectors were collected. A survey was conducted to students and parents to determine topics they wanted to know about school foodservice. The final videos were produced using this information and the expert opinions. The data were analyzed using SPSS 27.0 for Mac (IBM Corp., Armonk, NY, USA); a P-value of < 0.05 was considered significant.
Results
Three videos on school foodservice were developed for various age levels of students: kindergarten/lower-grade elementary, upper-grade elementary, and secondary school. Additionally, English subtitles were included for the multicultural student population. These videos, each lasting about 7 minutes, cover topics such as nutrition, hygiene, and the cultural significance of the school lunch program. The survey results showed that parents and students wanted to know the following topics about the school lunch program: “nutritionally balanced diet” (11.9%), “purchasing safe food ingredients” (10.9%), and “healthy eating habits” (9.9%).
Conclusions
The developed videos will serve as valuable educational resources on school foodservice, foster a deeper understanding of the school lunch program in parents and students, and potentially address their inquiries regarding production processes, nutrition, hygiene, cultural heritage, and health.

3,551 View
38 Download

[English]
Arterial stiffness index, physical activity and food and nutrient intake: cross-sectional study in adults aged 40 years and older: Eun-A Kim, Yun-Mi Kim, Eun-Kyung Kim; Korean J Community Nutr 2024;29(2):81-96. Published online April 24, 2024; DOI: https://doi.org/10.5720/kjcn.2024.29.2.81

Abstract PDF: Objectives
This study aimed to investigate arterial stiffness index, physical activity, and food and nutrient intake in middle-aged adults over 40 years when the incidence of cardiovascular disease begins to increase.
Methods
This study included 106 subjects (48 males and 58 females) aged between 40 and 64 years. The arterial stiffness index (brachial-ankle pulse wave velocity [baPWV], and ankle-brachial index [ABI]) were measured using a blood pressure pulse wave testing device. Physical activity was assessed using the Korean version of the Global Physical Activity Questionnaire, and food and nutrient intake was calculated using the Food Frequency Questionnaire.
Results
The mean age of the subjects was 54.4 years. Although the ABI of the subjects was within the normal range, they were divided into tertiles to compare physical activity and food and nutrient intake. In males, the time spent on moderate to vigorous physical activity (MVPA) was significantly higher in T3 (600.6 min/week) than in T1 (304.4 min/week). In females, the time spent in sedentary behavior was significantly lower in T3 (294.5 min/week) than in T1 (472.1 min/week). In addition, the frequency of fish consumption was significantly higher in T3 (1.27 frequency/day) than in T1 (0.64 frequency/day) in females. Polyunsaturated fatty acid (PUFA) and ω-3 fatty acid intake, adjusted for energy intake, were significantly positively correlated with ABI (r = 0.200 and r = 0.218, respectively).
Conclusions
High MVPA (in males), low sedentary behavior (in females), and PUFA and ω-3 fatty acid intake through fish consumption may be associated with low peripheral artery stiffness. Therefore, arteriosclerosis can be prevented through physical activity and proper dietary therapy.

1,433 View
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[Korean]
Association of ultra-processed food with diabetes and impaired fasting glucose in elderly populations (urban and rural): a cross-sectional study: Seung Jae Lee, Mi Sook Cho; Korean J Community Nutr 2024;29(1):51-64. Published online February 29, 2024; DOI: https://doi.org/10.5720/kjcn.2024.29.1.51

Abstract PDF

Objectives
This study examined the association between ultra-processed food (UPF) consumption and chronic diseases in elderly Koreans.
Methods
Data from the 2019–2021 Korea National Health and Nutrition Examination Survey were analyzed. Dietary intake and UPF consumption were assessed using the NOVA food classification based on 24-hour recall data from 3,790 participants (aged 65+ years). Participants were divided into 4 groups based on the quartile of energy intake from UPFs. Regions were classified as urban or rural. Multivariable logistic regression was employed to estimate the adjusted odds ratios (AORs) with 95% confidence intervals (CIs) after controlling for potential confounders.
Results
Among the participants, 71.3% resided in urban and 28.7% in rural areas. Compared to the urban elderly, rural participants tended to be older, have lower education and income levels, be more likely to live in single-person households, and have a higher smoking rate (P < 0.05). Urban elderly consumed more UPFs daily (146.1 g) compared to rural residents (126.6 g; P < 0.05). “Sugar-sweetened beverages” were the most consumed category in both regions. “Sweetened milk and its products” and “traditional sauces” were prominent in urban areas, while rural elderly consumed more “traditional sauces” and “distilled alcoholic beverages.” Rural areas also had a higher carbohydrate-to-calorie ratio than urban areas. Compared to the lowest quartile of UPF intake, the highest quartile was significantly associated with impaired fasting glucose only in rural areas (AOR, 1.48; 95% CI, 1.00–2.19; P for trend = 0.0014). No significant associations were observed for diabetes in either urban or rural areas.
Conclusions
This study suggests that high intake of UPFs is associated with increased odds of impaired fasting glucose in rural elderly. Further research is needed to elucidate the specific negative health effects of UPFs in different populations, and targeted efforts should promote healthy diets in both urban and rural areas.

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Ultra-Processed Foods and Cardiometabolic Health: A Review of Current Evidence
Nazlıcan Erdoğan Gövez, Eda Köksal
Current Nutrition Reports.2025;[Epub] CrossRef
A Study of the Chemosensory Properties of Commercial Processed Foods Using Electronic Sensors
Hyeonjin Park, Younglan Ban, Sojeong Yoon, Hyangyeon Jeong, Seong Jun Hong, Hee Sung Moon, Se Young Yu, Hyun-Wook Kim, Kyeong Soo Kim, Eun Ju Jeong, Eui-Cheol Shin
Journal of the Korean Society of Food Science and Nutrition.2024; 53(8): 805. CrossRef
Analysis of Flavor and Taste Patterns of Various Processed Animal Foods: Using the Electronic Tongue and Nose
Hee Sung Moon, Se Young Yu, Younglan Ban, Hyeonjin Park, Sojeong Yoon, Na Eun Yang, Seong Jun Hong, Hyun-Wook Kim, Kyeong Soo Kim, Eun Ju Jeong, Eui-Cheol Shin
Journal of the Korean Society of Food Science and Nutrition.2024; 53(12): 1267. CrossRef

2,406 View
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3 Crossref

[Korean]
Knowledge on complementary foods of mothers with young children and their perception of convenience complementary foods: Yoojeong Joo, Jihyun Yoon, Linxi Huang, Youngmin Nam; Korean J Community Nutr 2024;29(1):16-33. Published online February 29, 2024; DOI: https://doi.org/10.5720/kjcn.2024.29.1.16; Correction in: Korean J Community Nutr 2024;29(2):171

Abstract PDF

Objectives
The purpose of this study was to examine mothers’ knowledge levels on complementary foods and their perception of convenience complementary foods.
Methods
An online survey was conducted with mothers aged 20–49 years who had purchased convenience complementary foods and had a preschool child aged 4 months or older. The respondents were categorized into 3 groups based on their knowledge scores: low- (0–50 points), mid- (55–65 points), and high- (70–100 points) knowledge groups.
Results
The average score of mothers’ knowledge on complementary foods was 58.8 out of 100 points. Working mothers were found to have lower levels of knowledge compared to mothers who were housewives. Only 1/4 of responding mothers had educational experience on complementary foods. Mothers expressed a desire for information on the types of complementary foods (72.2%) and the intake amounts (60.3%) corresponding to each phase of their child’s development. Multivariate analysis of variance revealed significant differences in health (P = 0.002), variety (P = 0.039), and hygiene (P = 0.041) among the factors taken into consideration when purchasing convenience complementary foods according to the mothers’ knowledge levels. Mothers in the high-knowledge group placed a greater importance on ‘balanced nutrition’ (P = 0.022) and ‘hygienic cooking’ (P = 0.010) compared to mothers in the low-knowledge group. The results of the modified importance-performance analysis, which compared the importance and performance of the factors taken into consideration when purchasing convenience complementary foods, highlighted the need for efforts in ‘health,’ ‘hygiene,’ and ‘price,’ while also indicating an excessive effort in ‘convenience.’
Conclusions
This study suggests expanding relevant education programs to enhance mothers’ knowledge on complementary foods, especially for working mothers. In the industry, marketing strategies for complementary food products could be developed that align with the needs of mothers, focusing on health, hygiene, and price.

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Development and Evaluation of a Nutrition Education Website for the Prevention and Management of Childhood Obesity
Miyong Yon, Chan Park, Kwan-Hee Yoo, Taisun Hyun
Korean Journal of Community Nutrition.2012; 17(4): 390. CrossRef
Breakfast Skipping and Related Factors in Children in Poverty
Kyung Ja June, Jin-Young Kim, Seungmi Park, Ji Yun Lee
Journal of Korean Academy of Community Health Nursing.2011; 22(2): 204. CrossRef

3,689 View
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Educational Materialses

[Korean]
Systematization of food and nutrition education content based on national kindergarten curriculum: a qualitative formative study: Jung-Hyun Kim, Eugene Shim, Eunyoung Baik; Korean J Community Nutr 2023;28(6):509-522. Published online December 31, 2023; DOI: https://doi.org/10.5720/kjcn.2023.28.6.509

Abstract PDF

Objectives
This study is intended to develop a curriculum for kindergarten food and nutrition education aimed at preschool children, reflecting government policy and meeting the demands of preschool settings.
Methods
Existing educational materials were analyzed, and key elements of the 2019 Revised Nuri Curriculum (“Nuri Curriculum”) and Guidelines for Nutrition and Food Education in Kindergartens, Elementary, Middle, and High Schools (“Guidelines”) were examined as foundational information for developing the curriculum for food and nutrition education.
Results
Basing ourselves on the five domains of the Nuri Curriculum, “Physical Activity and Health,” “Communication,” “Social Relationships,” “Art Experience,” and “Natural Science Inquiry,” we integrated three areas from the Guidelines, namely “Dietary Habits and Health,” “Dietary Habits and Safety,” and “Dietary Habits and Culture,” to structure the curriculum for kindergarten food and nutrition education. Three specific domains, “Nutrition and Health,” “Food and Culture,” and “Safe Dietary Practices,” were tailored for preschool children, each comprising core concepts, content elements, and educational materials. In the “Nutrition and Health” domain, core concepts such as “nutrition” were addressed through content elements such as “balanced eating” and “vegetables and fruit,” while “health” included elements such as “eating regularly” and “nutrients for disease prevention,” each with two educational content components. The “Food and Culture” domain focused on “food” with content on “local foods (vegetable-garden experience)” and “food culture” with content on “our dining table (rice and side dishes),” “our agricultural products,” “global cuisine (multiculture),” and “considerate dietary practices,” each with four educational content components. The “Safe Dietary Practices” domain included core concepts such as “hygiene” with content on “hand-washing habits” and “food poisoning management,” and “safety” with content on “food labeling.”
Conclusions
The systematized curriculum for kindergarten food and nutrition education aligns with the Nuri Curriculum and is interconnected with the Guidelines. This curriculum can be used as foundational material for developing educational resources tailored to the characteristics of preschoolers, contributing to effective implementation in early childhood education.

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Parents' needs and perceptions of dietary and nutrition education in early childhood education institutions in South Korea: a mixed methods study
Jounghee Lee, Sookyung Choi, Minseo Kim, Seonghyun Lim, Jeong-Weon Kim
Korean Journal of Community Nutrition.2025; 30(6): 441. CrossRef

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[English]
Development of a campus-based intervention program to strengthen food literacy among university students: A qualitative formative study: Eunji Ko, Eunjin Jang, Jiwon Sim, Minjeong Jeong, Sohyun Park; Korean J Community Nutr 2023;28(6):495-508. Published online December 31, 2023; DOI: https://doi.org/10.5720/kjcn.2023.28.6.495

Abstract PDF

Objectives
This study aimed to develop a campus-based intervention program to enhance food literacy (FL) among university students.
Methods
In the initial phase, we conducted a literature review of FL intervention studies and held in-depth interviews with university students to identify facilitators and barriers to improving and practicing FL. Expert counseling sessions were conducted with nutrition education, marketing, and service design professionals. The results of this phase led to the creation of an initial curriculum draft. In the second phase, a follow-up survey was conducted with young adults to assess the acceptability of the developed curriculum. After the follow-up survey, additional meetings were conducted with the aforementioned experts, and the curriculum was further refined based on their input.
Results
An 11-week FL intervention program was devised using constructs from the Social Cognitive Theory. The weekly curriculum consisted of 90-min theory-based and 90-min hands-on experience sessions. Three primary aspects of FL were covered: nutrition and food safety, cultural and relational dimensions, and socio-ecological aspects. Program highlights included cooking sessions for crafting traditional Korean desserts, lectures on animal welfare, insights into zero-waste practices, and communal eating experiences. Based on the study team’s previous research, the program also addressed mindful eating, helping participants understand the relationship with their eating habits, and providing strategies to manage negative emotions without resorting to food. Yoga sessions and local farm visits were incorporated into the curriculum to promote holistic well-being.
Conclusions
This study elucidated the comprehensive process of creating a campus-based curriculum to enhance FL among university students, a group particularly susceptible to problematic eating behaviors and low FL levels. The developed program can serve as a blueprint for adaptation to other campuses seeking to bolster students’ FL.

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Effects of nutrition class with cooking lab on college students’ eating behaviors and well-being in the United States: a mixed-methods study
Borham Yoon, Kyungyul Jun
Nutrition Research and Practice.2025; 19(2): 305. CrossRef
The Dragon Fruit Advantage: Exploring University Students’ Experiences and Perceptions of a Targeted Nutrition Education Module
Adelfa Silor, Faith Stephanny C. Silor
Seminars in Medical Writing and Education.2025; 4: 924. CrossRef
Evaluating the effectiveness of a food literacy pilot program for university students: using a mixed-methods research approach
Eunji Ko, Eunjin Jang, Jiwon Sim, Minjeong Jeong, Sohyun Park
Nutrition Research and Practice.2024; 18(6): 885. CrossRef
A pilot investigation of a combined food literacy and exercise program for college students: a one-group pre-post intervention study
Minjeong Jeong, Jinhyun Kim, Dahye Han, Eunjin Jang, Kyoungho Choi, Sohyun Park
Korean Journal of Community Nutrition.2024; 29(6): 455. CrossRef

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Research Articles

[Korean]
Food and dish group diversity on menus of daycare centers provided by Center for Children’s Foodservice Management in Korea: a descriptive study: Youn-Rok Kang, Kyeong-Sook Lim, Hyung-Sook Kim; Korean J Community Nutr 2023;28(6):449-465. Published online December 31, 2023; DOI: https://doi.org/10.5720/kjcn.2023.28.6.449

Abstract PDF

Objectives
This study aimed to analyze menu patterns and food group diversity in daycare centers managed by the Center for Children's Foodservice Management in South Korea.
Methods
Data from 18 Center for Children's Foodservice Management centers across various provinces (excluding Jeju Island) were analyzed. We examined 8,796 meals served in February, May, August, and December 2021, focusing on seasonal lunch and snack menus for children aged 3-5. Foods were categorized into 19 groups for lunch and 21 for snacks. The frequency of food groups and dietary patterns were assessed using the Dietary Diversity Score. Analyses were conducted using Excel 2016 and IBM SPSS Statistics version 28.
Results
Most lunch menus (89%) included five menu items, with a ratio of grain, meat, and vegetables at 88%. Snack menus typically had one item (57%), with significantly more items in the afternoon compared to the morning (P < 0.001). Regarding snack patterns, 75.2% of morning snacks and 61.1% of afternoon snacks contained only one solid food and drink (P < 0.001). Fruit and milk (22.4%) was the most prevalent pattern in morning snacks, while grain and milk (31%) dominated afternoon snacks (P < 0.001). Only 48% of daycare center menus (all snacks and lunch) included all five food groups (grain, meat, vegetables, fruit, and milk). Notably, only 83% included milk and 57% included fruit.
Conclusions
These findings highlight the need to improve food variety and diversity in the Center for Children’s Foodservice Management-managed daycare center menus. Developing more detailed guidelines for menu structure and food composition is crucial to ensure children receive balanced and diverse nutrition.

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Nutrient intake and food consumption of Korean preschool children: a comparison between a daycare meal group and non-daycare meal group using the data from the 2016–2019 Korea National Health and Nutrition Examination Survey
Young-Hee Han, Taisun Hyun
Nutrition Research and Practice.2025; 19(2): 225. CrossRef

1,484 View
34 Download
1 Crossref

[Korean]
Understanding consumer awareness and utilization of local food in Jecheon during the COVID-19 pandemic: a descriptive study: Hye-ryeong Shin, Soojin Park; Korean J Community Nutr 2023;28(4):329-339. Published online August 31, 2023; DOI: https://doi.org/10.5720/kjcn.2023.28.4.329

Abstract PDF: Objectives
This study aims to explore consumer awareness and usage patterns of local food in Jecheon city during the COVID-19 pandemic, contributing to the establishment of the Jecheon City Food Plan.
Methods
Surveys were conducted from July 24 to August 24, 2021, using a combination of web-link and self-administered methods for adults living in Jecheon city (n = 250). Descriptive analysis, t-test, importance and satisfaction analysis (ISA) of local food choice attributes were performed using SPSS Statistics.
Results
Participants prioritized freshness when purchasing agricultural products. The freshness of Jecheon local food was the selection attribute with the highest consumer satisfaction and could provide purchase motivation. Approximately 73.6% of respondents understood the concept of local food, and 70% were familiar with Jecheon's local food. Notably, 94.8% expressed an intention to purchase but held negative views on selling local food in other areas. The need to increase the supply of local food to vulnerable populations and public school catering was highly recognized. The ISA identified ‘affordable price’, ‘delivery service’, and ‘product information’ as areas requiring improvement. On the other hand, ‘freshness of products’, ‘quality for the price’, and ‘support for local farmers and economy’ were identified as attributes to be maintained and strengthened.
Conclusions
Consumers in Jecheon city recognized local foods as more than just 'consumer goods’. Our findings suggest the need for further research on local food revitalization and more comprehensive local food planning to enhance consumer satisfaction.

975 View
17 Download

[English]
The frequency of convenience food consumption and attitude of sodium and sugar reduction among middle and high school students in Seoul: a descriptive study: Seoyeon Park, Yeonhee Shin, Seoyeon Lee, Heejung Park; Korean J Community Nutr 2023;28(4):269-281. Published online August 31, 2023; DOI: https://doi.org/10.5720/kjcn.2023.28.4.269

Abstract PDF

Objectives
This study aimed to examine the frequency of convenience food consumption at convenience stores (CVS) and the CVS usage patterns of middle and high school students as well as to understand students’ attitude toward sodium and sugar reduction.
Methods
We used an online questionnaire for data collection. The questionnaire comprised five distinct categories: general characteristics, CVS usage, frequency of consumption according to convenience food menus at CVS, attitude toward sodium and sugar reduction, and adherence to dietary guidelines.
Results
A total of 75 students from Seoul (14 middle school students and 61 high school students) participated in the study. Most respondents visit CVS 3-5 times a week. CVS are predominantly used during weekdays, mostly during lunch, and dinner. The students mostly checked the caloric content and expiration date as food labeling information. The participants were aware of the need to reduce their sugar and sodium intake. Among frequent CVS convenience food consumers, there was an increased consideration of the need to reduce their sugar and sodium consumption, despite their actual selection of foods with high sugar and sodium content. Additionally, they did not check the sugar and sodium levels indicated in food labeling. Further, the dietary action guide from the Ministry of Health and Welfare were poorly followed by most students.
Conclusions
There is a need for nutrition education specifically addressing the sugar and sodium content of the convenience foods predominantly consumed by students. Additionally, educating students with frequent convenience food consumption to actively check the sugar and sodium information on food labels could help promote healthier food choices.

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Co-occurrence network and pattern of school lunch using big data and text-mining using data from the 2021–2023 school meal menu information on the NEIS open educational information portal: an exploratory study
Hyeyun Kang, Jimi Kim
Korean Journal of Community Nutrition.2024; 29(6): 514. CrossRef

4,230 View
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[Korean]
Dietary sodium and potassium intake of Koreans estimated using 2 different sources of their contents in foods, Food & Nutrient Database and the Korean Total Diet Study : a comparative study: Jee Yeon Lee, Sung Ok Kwon, Soo Hyun Lee, Min Jeong Seo, Gae Ho Lee, Cho-il Kim; Korean J Community Nutr 2023;28(3):235-244. Published online June 30, 2023; DOI: https://doi.org/10.5720/kjcn.2023.28.3.235

Abstract PDF: Objectives
Based on the results from the Korean Total Diet Study (KTDS), the sodium (Na) and potassium (K) intake of Koreans were estimated and compared with intake estimates from the Food & Nutrient Database (FNDB), as in the Korea National Health and Nutrition Examination Survey (KNHANES) to verify the validity of these estimates.
Methods
One hundred and thirty-four representative foods (RFs) covering 92.5% of the total food intake of Koreans were selected, and 228 pairs of corresponding ‘RF x representative cooking method’ were derived by reflecting the methods used mainly in terms of frequency and quantity in their cooking. RF samples were collected from three cities with a larger population size in three regions (nine cities) nationwide, and six composite samples were made for each RF, considering its regional and/or seasonal characteristics. One thousand three hundred and sixty-eight ‘RF x representative cooking method’ pair samples were prepared, and the Na and K contents were assessed using inductively coupled plasma atomic emission spectrometry (ICP-MS). The Na and K intake of the Korean population was estimated by linking the content with the food intake data from the 7th KNHANES.
Results
The mean Na and K intake of Koreans were 2,807.4 mg and 2,335.0 mg per person per day, respectively. A comparison with the Na and K intake from KNHANES, including only RFs of KTDS, showed comparable results with less than 5% variation. While the contribution and ranking of food items to Na intake were similar between KNHANES and KTDS, there were differences in K intake. This was attributed to the large discrepancies in the K content of rice and coffee between KTDS results and the values in the 9th Revision of the National Food Composition Table used in KNHANES.
Conclusions
The Na and K intake of Koreans estimated based on the KTDS, which performed nutrient analysis on samples prepared to a ‘table-ready’ state using foods of the representative collection, was similar and comparable with that of KNHANES. This supports the validity and usefulness of FNDB-based nutrient intake estimation at the population level. The list of nutrients studied in KTDS is expected to be expanded, allowing for intake estimation of nutrients with currently insufficient or absent information in the FNDBs in use.

2,626 View
70 Download

[Korean]
Status of Iodine Intake and Comparison of Characteristics according to Iodine-sourced Food Intake Patterns of Chinese Adults: A Study Encompassing Three Regions with Different Iodine Nutritional Statuses: Danying Zhang, Ho Kyung Ryu; Korean J Community Nutr 2022;27(6):503-514. Published online December 31, 2022; DOI: https://doi.org/10.5720/kjcn.2022.27.6.503

Abstract PDF: Objectives
This study examines the status of iodine intake and compares the characteristics (region and thyroid disease prevalence) according to the iodine-sourced food intake pattern in Chinese adults.
Methods
An online survey was conducted by enrolling 437 Chinese adults aged 18-65 years, living in three regions with different iodine nutritional statuses: Sichuan, Chongqing, and Guangdong.
Results
The prevalence of thyroid diseases in Sichuan, Chongqing, and Guangdong were 12.5%, 8.5%, and 2.8%, respectively. Conversely, the proportion of people who received thyroid disease-related examinations was a mere 37.5%. Among the subjects who underwent thyroid examination, the prevalence of thyroid disease in the three regions was 32.2%, 21.8%, and 8.0%, respectively. No differences were obtained in the total iodine intake by region, but the type of iodine source foods differed. Regardless of the region, the highest iodine content was obtained from seaweed. However, the iodine content from iodized salt and other foods differed significantly by region. Factor analysis revealed three food intake patterns according to the iodine food source. The study further determined regional differences and differences in the prevalence of thyroid disease according to food intake patterns.
Conclusions
High salt intake can also increase iodine intake, which is thought to have an effect on the occurrence of iodine-excess thyroid disease. Hence, efforts focused on improving salty eating habits need to be implemented.

1,247 View
10 Download

[Korean]
Foodservice Status and Perception regarding Foodservice Management in Kindergartens attached to Elementary Schools in Seoul: Ranmi Jung, Gun-Hee Kim, Jieun Oh, Sunny Ham, Seungmin Lee; Korean J Community Nutr 2022;27(6):492-502. Published online December 31, 2022; DOI: https://doi.org/10.5720/kjcn.2022.27.6.492

Abstract PDF

Objectives
This study examines the foodservice status of kindergartens attached to elementary schools in Seoul. We further determine the perception of elementary school principals and kindergarten assistant principals on the foodservice management for kindergartens.
Methods
This survey was conducted from July 17 to 23, 2019, enrolling 207 kindergartens attached to elementary schools in Seoul. Questionnaires were sent to principals of elementary schools and assistant principals of kindergartens, and the data obtained from 89 kindergartens were included in the analysis. The questionnaire consisted of four parts: general information on subjects, foodservice management status, foodservice management status during elementary school vacations, and the perception of principals of elementary schools and assistant principals of kindergartens on foodservice management. Data are presented as frequency and percentage or mean and standard deviation. Statistical comparison between principals of elementary schools and assistant principals of kindergartens was conducted by paired t-test, chi-square test, and Pearson's correlation analysis.
Results
A separate menu (10.1%) or recipe (20.2%) that considers preschooler characteristics was rarely used for foodservice at kindergartens attached to elementary schools. Most kindergartens did not have a separate dining space (3.4%) or a dedicated cook (93.3%). Although most kindergartens (92.1%) had operational foodservice during elementary school vacations, non-professional staff and non-nutrition teacher were mainly in charge of organizing the menu and purchasing ingredients (34.1% and 41.5%, respectively). The rate of using a contract catering company (28.0%, 23.2%) was also high. Both elementary school principals and assistant principals of kindergartens showed a high perception of the necessity for providing responsibility allowances for nutrition teachers and improving the cooking environment for kindergartens during elementary school vacations.
Conclusions
There is a need for policies and administrative support measures to improve the quality of foodservices for kindergartens attached to elementary schools.

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Developing educational videos to inform rightly about school foodservice from kindergarten to high school: a case study
Gyoungok Gang, Chaewon Park, Haejin Kang, Wan Soo Hong, Yoo Kyoung Park, Sook Hee Choi, Seung Hye Kim, Jieun Choi, Jihyun Park, Hyeja Chang
Korean Journal of Community Nutrition.2024; 29(2): 97. CrossRef
A Study on the Menu Patterns and Menu Diversity of Bibimbap Meals Served by Elementary School Foodservices in the Jeonbuk Area
Sun A Choi, Chohee Mun, Jieun Go, Jeong Ok Rho
Journal of the East Asian Society of Dietary Life.2024; 34(6): 444. CrossRef

1,120 View
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[Korean]
Problems Encountered in Analyzing the Market Size, Purchase, and Consumption of HMR in the Republic of Korea: Sung Ok Kwon, Injoo Choi, Yoojeong Joo, Jihyun Yoon; Korean J Community Nutr 2022;27(6):480-491. Published online December 31, 2022; DOI: https://doi.org/10.5720/kjcn.2022.27.6.480

Abstract PDF

Objectives
This study examined the problems encountered when analyzing the market size, purchase, and consumption of HMR (home meal replacements) in the Republic of Korea.
Methods
The macro data relevant to the market size and purchase status of HMR were critically summarized. The micro data retrieved from the 2019 & 2020 Korea National Health and Nutrition Examination Survey (KNHANES) were analyzed to understand the consumption of HMR.
Results
The Korea Agro-Fisheries & Food Trade Corporation and the Ministry of Food and Drug Administration reported the market size of HMR, whereas the Korean Rural Economic Institute and the Rural Development Administration reported the purchase expense and frequencies of HMR. Since the values on the market size and purchase status were calculated or surveyed using different scopes of HMR, there have been reliability issues for the data presented. Additionally, lack of consensus on the use of Korean terms corresponding to HMR was found to be a problem. To examine the consumption of HMR, analysis of the food intake data from KNHANES presented results with very low validity due to the inappropriate survey and coding scheme not reflecting the inclusion of new food types.
Conclusions
Several problematic discrepancies were encountered in the statistics on HMR. The fundamental cause of these problems was the absence of agreement on the scope of HMR and the Korean terms corresponding to it. Considering the increasing importance of HMR in Korean diets, urgent cooperative efforts are required between the government and academia to derive an agreed Korean term and establish the scope of HMR.

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Sustainable Human Resource Management in Emergencies: The Case of the Lithuanian Logistics Sector
Kristina Čižiūnienė, Gabrielė Voronavičiūtė, Dragan Marinkovic, Jonas Matijošius
Sustainability.2025; 17(6): 2591. CrossRef
Evaluation of Thermal Resistance in Geobacillus thermodenitrificans subsp. Calidus and Ureibacillus suwonensis Spores Isolated in Korea
Ju-Hee Nam, Du-Yeong Jung, Zi-On Choi, Hyun-Jung Jung, Jung-Beom Kim
Journal of Food Hygiene and Safety.2025; 40(1): 13. CrossRef
Physicochemical Properties and Quality Analysis of Miichthys miiuy Products Processed by Drying and Smoking
Yu-Jin Heo, Hayoun Kim, Hae-In Lee
Journal of the Korean Society of Food Science and Nutrition.2025; 54(7): 629. CrossRef
Survey on consumer perceptions, health benefits and preferences of kindergarten and school foodservices in Korea, including related keywords reported in newspaper: a mixed-methods study
Gyoungok Gang, Chaewon Park, Hyeja Chang
Korean Journal of Community Nutrition.2025; 30(4): 309. CrossRef
Eating behaviors, home meal replacement consumption, and nutrition quotient: a comparative study of male shift and non-shift workers in Chungcheong, Korea
Yeon Jin Lee, Munkyong Pae
Nutrition Research and Practice.2025; 19(5): 758. CrossRef
Usage and Quality Satisfaction of Convenience Food at Convenience Stores according to the Eating Behavior of University Students in Southern Gyeonggi Province
Se-In Oh, Ok-Sun Kim
Journal of the East Asian Society of Dietary Life.2023; 33(6): 492. CrossRef

5,991 View
142 Download
6 Crossref

[Korean]
Development of Korean NOVA Food Classification and Estimation of Ultra-Processed Food Intake Among Adults: Using 2018 Korea National Health and Nutrition Examination Survey: Hae Jin Park, Sohyun Park, Jee Young Kim; Korean J Community Nutr 2022;27(6):455-467. Published online December 31, 2022; DOI: https://doi.org/10.5720/kjcn.2022.27.6.455

Abstract PDF

Objectives
In this study, we suggest a Korean NOVA food classification that can be applied to food consumption among Korean. Based on this suggestion, the nutritional intake of Korean adults from ultra-processed foods (UPFs) was estimated.
Methods
Korean commercial food was categorized based on the NOVA food classification criteria through the Korea Food Code and expert meetings. Then, the nutrient intake status of 6,991 participants in the 2018 National Health and Nutrition Examination Survey was analyzed according to the food processing level. Then, 4,152 adult participants (age 19-65) were divided into quartiles on the basis of their intake of UPFs, and the nutrient intakes from UPFs were compared.
Results
Korean NOVA Food Classification defines with priority Group I (Unprocessed/ Minimally processed foods) and Group II (Processed culinary ingredients) foods based on the food cooking or consumption. Then, Group III (Processed foods) and Group IV (UPFs) are classified according to whether the characteristics of the raw materials used are maintained or whether the food was consumed before the 1970s. Our analysis results showed that most of the calories in the diet were consumed by Group I (52.7%), followed by Group IV (29.3%). After categorization of the adult participants into four groups according to their energy consumption from UPFs, we found that the highest consumption group (Q4) was younger and had higher percentage of men than women. The comparative analysis of the consumption of ultra-processed foods by Korean adults revealed that participants of a younger age and men consumed higher energy from UPFs than older participants and women, respectively (P < 0.01). Furthermore, the larger intake of UPFs was associated with an increasing trend for a higher intake of energy, sugar, saturated fat (P for trend < 0.001), total fat (P for trend = 0.021), and sodium (P for trend = 0.005), whereas the intake of carbohydrate, protein, and dietary fiber had a decreasing trend (P for trend < 0.001).
Conclusions
With the current increase in the consumption of processed and ultra-processed foods, it is important to carefully consider not only nutrient intake but also the level of food processing.

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Eunjin Jang, Sarang Jeong, Jinhyun Kim, Sukyoung Jung, Jee Young Kim, Jung Eun Lee, Sohyun Park, Jang Won Son
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Consumption of ultra-processed foods and major contributing foods according to the age group in Korean adults and older adults: using data from the Korean National Health and Nutrition Examination Survey (2016–2019)
Seulgi Lee, Jee Young Kim, Kirang Kim
Journal of Nutrition and Health.2025; 58(1): 59. CrossRef
Potential misclassification of ultra-processed foods across studies and the need for a unified classification system: a scoping review
Sukyoung Jung, Jee Young Kim, Sohyun Park, Jung Eun Lee
Nutrition Research and Practice.2025; 19(3): 331. CrossRef
Gender Differences in Ultra-Processed Food Consumption and Its Association with Obesity Among Korean Adults
Seung Jae Lee, Kyung Won Lee
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Interaction between chronotype and ultra-processed food intake on triglyceride-glucose index in Korean adults
Sarang Jeong, Eunjin Jang, Sukyoung Jung, Jinhyun Kim, Minjeong Jeong, Dahye Han, Sohyun Park
Nutrition Research and Practice.2025; 19(4): 591. CrossRef
Ultra-processed food intake and risk of type 2 diabetes: a pooled analysis of three prospective cohorts of Korean adults and an updated meta-analysis
Yujin Kim, Yoonkyoung Cho, Bonjae Koo, Zhangling Chen, Qi Sun, Hannah Oh
European Journal of Epidemiology.2025; 40(11): 1293. CrossRef
Sex Differences in the Association Between Ultra-Processed Food Consumption and NAFLD: An Analysis of KNHANES 2013–2021 Data
Byung Soo Kwan, Nak Gyeong Ko, Ji Eun Park
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Ultra-processed food intake and dietary behaviors in Korean adolescents: a cross-sectional study based on the 2019–2023 Korea National Health and Nutrition Examination Survey
Jin-A Kim, Sim-Yeol Lee
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Associations of Ultra-Processed Food Intake with Body Fat and Skeletal Muscle Mass by Sociodemographic Factors
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Ji A Seo
Diabetes & Metabolism Journal.2024; 48(4): 713. CrossRef
Association of ultra-processed food with diabetes and impaired fasting glucose in elderly populations (urban and rural): a cross-sectional study
Seung Jae Lee, Mi Sook Cho
Korean Journal of Community Nutrition.2024; 29(1): 51. CrossRef
Sustainable diets: a scoping review and descriptive study of concept, measurement, and suggested methods for the development of Korean version
Sukyoung Jung
Korean Journal of Community Nutrition.2024; 29(1): 34. CrossRef
Eating patterns in Korean adults, 1998–2018: increased energy contribution of ultra-processed foods in main meals and snacks
Sukyoung Jung, Jee Young Kim, Sohyun Park
European Journal of Nutrition.2024; 63(1): 279. CrossRef
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Gyeong-yoon Lee, Joo Hyun Lim, Hyojee Joung, Dankyu Yoon
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Changes in Ultra-Processed Food Consumption among Adolescents before and after the COVID-19 Pandemic : Using Data from the 7th (2018~2019) and 8th (2020~2021) Korea National Health and Nutrition Examination Survey
Hyun-Jin Hwang, Yoo Kyeong Kim
Korean Journal of Human Ecology.2024; 33(6): 981. CrossRef
Higher consumption of ultra-processed food is associated with cardiovascular risk in Korean adults: KNHANES 2016–2018
Sukyoung Jung, Eunjin Jang, Hyeongyeong Lee, Jee Young Kim, Sohyun Park
Frontiers in Nutrition.2023;[Epub] CrossRef

4,549 View
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[Korean]
Development and Effectiveness Evaluation of the STEAM Education Program on Food Groups for Kindergarteners: Jinkyeong Ahn, Seyoen Kim, Donghyuk Kim, Jounghee Lee; Korean J Community Nutr 2022;27(5):361-372. Published online October 31, 2022; DOI: https://doi.org/10.5720/kjcn.2022.27.5.361

Abstract PDF

Objectives
The purpose of this study was to explore the effectiveness of the STEAM (Science, Technology, Engineering, Arts, and Mathematics) education program on the use of specific food groups in improving nutrition-related knowledge and attitude, dietary behavior, creative problem solving, and STEAM attitude.
Methods
We selected two classes at a kindergarten in Jeollabuk-do, South Korea. A total of 44 kindergarteners from the two classrooms participated in this study. The experimental group and the control group were formed with 22 students each. The experimental group attended 11 STEAM classes on the use of the grain, fruit, and milk food groups. First, we performed the paired t-test to examine changes from pre-to-post classes for both groups. Then, we used ANCOVA to compare post-test scores between the experimental and control groups with the adjustment of pre-test scores.
Results
The results demonstrate that the STEAM education program on the use of the food groups significantly improved (1) nutrition-related knowledge and attitude, and dietary behavior (P < 0.001), (2) creative problem solving (P < 0.001), and (3) STEAM attitude (P < 0.001) in the intervention group when compared with the control group.
Conclusions
The STEAM education program on the use of food groups is effective in enhancing nutrition knowledge and attitude, dietary behavior, creative problem solving, and STEAM attitudes among kindergarten students.

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Development and evaluation of play-based food and nutrition education materials for early childhood through sensory experiences: a pre-post observational study
Hyunjoo Ryou, Sohyun Park, Jieun Oh, Ji-Yun Hwang
Korean Journal of Community Nutrition.2025; 30(6): 471. CrossRef

1,606 View
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1 Crossref

[Korean]
Consumption Values of Fast Food according to Health Consciousness in American Consumers: Kiwon Lee, Youngmi Lee; Korean J Community Nutr 2022;27(4):309-320. Published online August 31, 2022; DOI: https://doi.org/10.5720/kjcn.2022.27.4.309

Abstract PDF: Objectives
This study aimed to analyze the consumption values of fast foods among American consumers and compare the consumption values according to the levels of health consciousness.
Methods
An online survey using a self-administered questionnaire was conducted on 351 American consumers. Based on the median health consciousness score (3.83 out of 5 points), the subjects were classified into the low health-conscious group (Low group) and the high health-conscious group (High group). Factor analysis was used to extract factors for the five consumption values (functional, social, emotional, conditional, and epistemic values). The differences in the consumption values between the two groups were analyzed.
Results
A total of 14 factors were extracted for the five consumption values and 9 factors among them (convenience, healthiness, and taste in functional values; health-conscious people, young, busy, obese people, low class, and budget restricted people in social values; guilt in emotional values; accidental situations in conditional values) showed significant differences between the two groups. The Low group had a higher perception of the factor of healthiness (P < 0.001) than the High group. The High group had a relatively higher perception of the factors of convenience (P < 0.001), taste (P < 0.001), and guilt (P < 0.001). In addition, the High group perceived the social values of fast foods more negatively. The High group consumed fast foods less frequently than the Low group and perceived their health status and healthiness of eating habits more positively.
Conclusions
The results reveal that the health consciousness level significantly influences consumption value perceptions about fast foods in American consumers. Policymakers and marketers can develop effective strategies based on the results of this study.

1,094 View
51 Download

[Korean]
Dietary Iron Intake of Koreans Estimated using 2 Different Sources of Iron Contents are Comparable: Food & Nutrient Database and Iron Contents of Cooked Foods in the Korean Total Diet Study: Jeeyeon Lee, Sung Ok Kwon, Yoonjae Yeoh, Min Jeong Seo, Gae Ho Lee, Cho-il Kim; Korean J Community Nutr 2022;27(3):245-253. Published online June 30, 2022; DOI: https://doi.org/10.5720/kjcn.2022.27.3.245

Abstract PDF

Objectives
This study was conducted to find out if the dietary iron intake of Koreans estimated by 2 different methods (iron content sources) using the food intake data from the Korea National Health and Nutrition Examination Survey (KNHANES) are comparable. One method was based on the KNHANES's Food & Nutrient Database (FND) derived mainly from the Korean Food Composition Table and the other used the iron content (IC) of food samples processed in the Korean Total Diet Study (KTDS).
Methods
Dietary intake data from the 2013-2016 KNHANES was used to select representative foods (RFs) in KTDS for iron analysis. Selection of the RFs and cooking methods for each RF (RF × cooking method pair) was performed according to the ‘Guidebook for Korean Total Diet Studies’ and resulted in a total of 132 RFs and 224 ‘RF × cooking method’ pairs. RFs were collected in 9 metropolitan cities nationwide once or twice (for those with seasonality) in 2018 and made into 6 composites each, based on the origin and season prior to cooking. Then, the RF composites prepared to a ‘table ready’ state for KTDS were analyzed by Inductively Coupled Plasma-Mass Spectrometry (ICP-MS). Dietary iron intake of the Korean population was estimated using only RFs’ intake data based on the 2 sources of iron content, namely FND-KNHANES and IC-KTDS.
Results
RFs in KTDS covered 92.0% of total food intake of Koreans in the 2016-2018 KNHANES. Mean iron intake of Koreans was 7.77 mg/person/day by IC-KTDS vs 9.73 mg/person/day by FND-KNHANES. The major food groups contributing to iron intake were meats (21.7%), vegetables (20.5%), and grains & cereals (13.4%) as per IC-KTDS. On the other hand, the latter source (FND-KNHANES) resulted in a very different profile: grains & cereals (31.1%), vegetables (16.8%), and meats (15.3%). While the top iron source was beef, accounting for 8.6% in the former, it was polished rice (19.2%) in the latter. There was a 10-fold difference in the iron content of polished rice between 2 sources that iron intakes excluding the contribution by polished rice resulted in very similar values: 7.58 mg/person/day by IC-KTDS and 7.86 mg/person/day by FNDKNHANES.
Conclusions
This study revealed that the dietary iron intake estimated by 2 different methods were quite comparable, excluding one RF, namely polished rice. KTDS was thus proven to be a useful tool in estimating a ‘closer-to-real’ dietary intake of nutrients for Koreans and further research on various nutrients is warranted.

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Nutrients and food intake according to atherogenic index of plasma in Korean postmenopausal women
Ye-Jin Lee, Sun Yung Ly
Journal of Nutrition and Health.2025; 58(1): 87. CrossRef
Iron Consumption and Colorectal Cancer in Korean Adults: A Prospective Cohort Study
Sukhong Min, Katherine De la Torre, Hyobin Lee, Woo-Kyoung Shin, Daehee Kang
Nutrients.2025; 17(8): 1309. CrossRef
Dietary sodium and potassium intake of Koreans estimated using 2 different sources of their contents in foods, Food & Nutrient Database and the Korean Total Diet Study: a comparative study
Jee Yeon Lee, Sung Ok Kwon, Soo Hyun Lee, Min Jeong Seo, Gae Ho Lee, Cho-il Kim
Korean Journal of Community Nutrition.2023; 28(3): 235. CrossRef

1,940 View
22 Download
3 Crossref

[Korean]
The Relationship Between the Korean Adults Diet Evaluated Using Dietary Quality Indices and Metabolic Risk Factors: Based on the 2016 ~ 2019 Korea National Health and Nutrition Examination Survey: Chong-Yu Ding, Pil-Sook Park, Mi-Yeon Park; Korean J Community Nutr 2022;27(3):223-244. Published online June 30, 2022; DOI: https://doi.org/10.5720/kjcn.2022.27.3.223

Abstract PDF

Objectives
This study was designed to investigate the relationship between metabolic risk factors, Index of Nutrition Quality, and the dietary quality index score of Korean adults.
Methods
The subjects were 18,652 Korean adults aged 19 years or older (7,899 males, 10,753 females) who participated in the 2016-2019 Korea National Health and Nutrition Examination Survey. Subjects were divided into normal, pre-metabolic syndrome, and metabolic syndrome (MetS) groups according to the number of their metabolic risk factors. Data were analyzed using the SPSS program.
Results
About 44.7% of men in the MetS group were at least college graduates (P < 0.001), whereas 52.0% of women in the MetS group were middle school graduates or lower (P < 0.001). The frequency of fruit and dairy products intake tended to decrease as the number of metabolic risk factors increased in both men and women (P for trend < 0.001). As the number of metabolic risk factors decreased, the frequency of grain intake tended to decrease in men (P for trend < 0.001) while the frequency of intake of red meat (P for trend = 0.001), poultry (P for trend < 0.001), and eggs (P for trend < 0.001) decreased in women. The total scores of Diet Quality Index-International (DQI-I) (men P < 0.001, women P < 0.01) and Korean Healthy Eating Index (KHEI) (men and women P < 0.001) were significantly lower in the MetS group compared to the other groups, and the total score of DQI-I and KHEI tended to decrease as the number of metabolic risk factors increased.
Conclusions
Dietary quality evaluation using various indices can provide more information on the dietary problems related to metabolic risk factors. Nutrients and foods that have been confirmed to be related to metabolic risk factors can be used to develop dietary guidelines for the nutritional management of metabolic diseases.

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Association between the Korean Healthy Eating Index sub-domains and the risk of metabolic syndrome in Korean adults: data from the 2022–2023 Korea National Health and Nutrition Examination Survey
Ha-Jeong An, Sang-Jin Chung
Nutrition Research and Practice.2026; 20(1): 114. CrossRef
Relationship between diet quality and risk factors for diabetes complications in Korean adults with type 2 diabetes: based on the 8th Korea National Health and Nutrition Examination Survey (2019–2021)
Ye-In Son, Soo-Kyung Lee
Journal of Nutrition and Health.2025; 58(2): 179. CrossRef
Associations between Home Meal Replacement Consumption Frequency and Public Health Outcomes Among Adults in Their 20s and 30s in Daegu
Hye-Sun Jung, Kyung-Suck Park, Pil-Sook Park
Journal of Health Informatics and Statistics.2025; 50(2): 200. CrossRef
Associations between diet quality and regional factors in Korea vary according to individuals’ characteristics: a cross-sectional study
Hyunmi Han, Clara Yongjoo Park, Jeonghwa Lee
Korean Journal of Community Nutrition.2025; 30(4): 274. CrossRef
Cardiocerebrovascular Disease or Fatty Liver Incidence Associated with Pattern of Metabolic Risk Factors and Nutritional Status of Korean Adults: A Prospective Cohort Study
Pil Sook Park, Mei Sheng Li, Chong Yu Ding, Mi Yeon Park
Journal of Health Informatics and Statistics.2023; 48(2): 165. CrossRef
Assessment of Nutrient Intake and Dietary Quality of Korean Adults in Metabolic Syndrome Patients According to Taking Medical Care: Based on the 2017 Korea National Health and Nutrition Examination Survey
Juhee Lee, Kyungsuk Choi
Korean Journal of Community Nutrition.2022; 27(4): 321. CrossRef

1,916 View
24 Download
6 Crossref

[Korean]
Consumption of Weight-control or Health Functional Foods, Dietary Habits, and Weight Perceptions According to the Body Mass Index of Adult Women in the Chungcheong Area: Gayoung Seong, Munkyong Pae; Korean J Community Nutr 2022;27(2):81-93. Published online April 30, 2022; DOI: https://doi.org/10.5720/kjcn.2022.27.2.81

Abstract PDF

Objectives
This study was conducted to investigate the experience and perception among adult women regarding weight control and the consumption of weight-control foods or health functional foods based on their body mass index (BMI).
Methods
The subjects were 634 adult women from the Chungcheong province, Korea, and data were collected through a self-administered questionnaire from July 2021 through September 2021. The subjects were divided into four groups based on their BMI status: underweight (< 18.5 kg/㎡ , 7.6%), normal weight (18.5 ~ 22.9 kg/㎡ , 53.3%), overweight (23 ~ 24.9 kg/㎡ , 19.7%), and obese ( ≥ 25 kg/㎡ , 19.4%).
Results
Over the past 3 years, almost two-thirds (68.6%) of the adult women had tried weight control measures, despite the fact that a significant proportion of them were normal or underweight. More importantly, 57.6% of subjects reported the consumption of weightcontrol foods, with a lower proportion in the underweight (35.4%) group compared to the normal (56.2%), overweight (62.4%), and obese (65.0%) groups. The food items used for weight control were mostly salads, chicken breasts, low fat (soy) milk, slimming tea, protein shakes, low-calorie cereals, and energy/protein bars among others. In addition, one-third (31.1%) of the subjects reported the use of health functional foods containing ingredients for fat reduction. A significantly higher proportion of these was from the overweight (36.0%) and obese (38.2%) groups compared to the underweight (20.8%) and normal weight (28.1%) groups. Products containing Garcinia cambogia extract, green tea, or Cissus extract, were popular among users. Subjects who were obese had a poorer perception of their health and body. Most subjects felt the need for correct information regarding weight control, but this number was significantly more in the higher BMI groups.
Conclusions
Our results suggest that the use of weight-control foods or health functional foods is popular among adult women, especially those who are obese. Thus, nutrition education courses covering facts about weight control and practice need to be developed and provided based on the BMI status of subjects.

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Coffee Consumption Patterns According to Health Behavior and Dietary Factors among Young Adults : From the Korea National Health and Nutrition Examination Survey 2021
Hyun-Ju Jo, Hyun-Kyoung Bang
Journal of the East Asian Society of Dietary Life.2025; 35(4): 369. CrossRef
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Hyoju Lee, Youjeong Jang, Sumin Kim, Kyungho Ha
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Myeunghee Han
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Eunjung Lee, Hyosun Jung, Jina Jang
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A Narrative Approach to the Diet History of Female College Students : Focusing on the Role of SNS and Social Media Influencers and Individuals’ Motivation for Dieting
Kyungbo Kim
Korean Journal of Journalism & Communication Studies.2022; 66(3): 139. CrossRef

1,786 View
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[Korean]
Evaluation of Nutritional Quality of Convenience Store Meal Boxes according to Store Company and Meal Price: Changgyu Cho, Youngmin Nam, Hye-Jong Yoo; Korean J Community Nutr 2022;27(2):105-120. Published online April 30, 2022; DOI: https://doi.org/10.5720/kjcn.2022.27.2.105

Abstract PDF

Objectives
This study evaluated nutritional quality of convenience store meal boxes according to store company and meal price.
Methods
In May 2020, 71 meal boxes from five major convenience store companies were collected. Respective weights of all dishes and food ingredients included in each meal box were measured with a digital scale. Information on nutritional contents was collected from nutrition fact panels on packages. Food group patterns, dietary diversity scores (DDS), and dietary variety scores (DVS) were analyzed. Nutritional contents, i.e., amounts of energy, protein, and sodium, and percentages of energy from carbohydrate, sugar, fat, and saturated fat were compared with respective standards based on the 2020 Dietary Reference Intakes for Koreans. Comparison was made among five companies (Company A, B, C, D, E) and three price groups ( ≤4,200 won, ≥4,300 and ≤4,500 won, ≥4,600 won). Multiple regression analyses were conducted to examine the difference of nutritional contents according to company and price, respectively while holding the other variable constant.
Results
DDS, but not DVS, significantly differed among companies. The percentages of meal boxes meeting the nutritional standards of sodium significantly differed among companies; the percentage was highest in companies B (75.0%) and C (73.3%). “Company” was associated with amount of energy, protein, and sodium, and percentage of energy from saturated fat. “Price” was associated with the amount of energy and percentage of energy from carbohydrate. The average number of satisfied standards was highest in companies B (5.0) and C (4.0). About two-thirds of the meal boxes provided less amount of energy than the standard; the percentage of such meal boxes was highest in meal boxes with price of 4,200 won or lower.
Conclusions
There were significant differences in the nutritional quality of meal boxes according to “company”. Meanwhile, higher-priced meal boxes did not necessarily ensure better nutritional quality.

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Jinkyung Choi, Yunseon Choe
International Journal of Gastronomy and Food Science.2025; 42: 101332. CrossRef
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Kyungho Ju, Yangwoo Kim, Seung Hee Woo, Juhyeong Kim, Inah Kim, Jaechul Song, Soo-Jin Lee, Jeehee Min
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Eun-Ji Park, Inhwa Han, Kyoung Hye Yu, Sun Yung Ly
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Diet status of college students evaluated by applying the photographic analysis method
Chae Hong Lee, Kyung A Lee
Journal of Nutrition and Health.2023; 56(4): 439. CrossRef

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[Korean]
Comparison of Sodium Reduction Practice and Estimated Sodium Intake by Salty Food Preference on Employees and Customers of Sodium Reduction Restaurant in Daegu, Korea: Su-Jin Lee, Keon-Yeop Kim, Yeon-Kyung Lee; Korean J Community Nutr 2022;27(1):27-35. Published online February 28, 2022; DOI: https://doi.org/10.5720/kjcn.2022.27.1.27

Abstract PDF

Objectives
The purposes of this study were to compare the degree of sodium reduction practice and estimate sodium intake by salty food preference.
Methods
Sodium reduction practices, salty food preferences and estimated sodium intake were surveyed for restaurant owners (n = 80), employees (n = 82) and customers (n = 727) at the restaurants participating in the sodium reduction project in Daegu, Korea. Estimated sodium intake was performed by examining sex, age, body mass index (BMI), salty eating habit and dietary behaviors.
Results
The degree of sodium reduction practice was significantly higher in salinity meter use (P < 0.001), low salt seasonings (P < 0.001) and efforts to make the foods as bland as possible overall (P < 0.001) in the restaurants participating in sodium reduction project than in homes (P < 0.001). The degree of sodium reduction practice appeared lower in the high salty food preference group than in the low-preference group in such items as efforts to make the foods as bland as possible overall (P < 0.05) and washing the salty taste and then cooking (P < 0.05). The high-preference group showed high-salt dietary behavior, including eating all the soup until nothing was left (P < 0.05) more than the low-preference group, but low-salt dietary behavior included checking the sodium content in processed foods (P < 0 .0 5) less than the low-preference group. The high-preference group was higher in the soup and stew intake frequency than the low-preference group (P < 0.05) and much lower in nuts (P < 0.05) and fruits (P < 0.05) intake frequency. The high-preference group had a higher salty eating habit (P < 0.05), salty taste assessment (P < 0.05) and estimated sodium intake (P < 0.05) than the low-preference group.
Conclusions
The present study showed that the salty food preference was strongly associated with lower sodium reduction practice and higher estimated sodium intake.

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Amelioration of metabolic disturbances and adipokine dysregulation by mugwort (Artemisia princeps P.) extract in high-fat diet-induced obese rats
Yun-Hye Kim, Chung-Mu Park, Gun-Ae Yoon
Journal of Nutrition and Health.2016; 49(6): 411. CrossRef
Comparison of Serum Adiponectin Levels According to Body Mass Index and Dietary Behaviors of Female University Students in Seoul
Mi Joung Kim, Hyun Young Jun, Hye Bog Rha
Korean Journal of Community Nutrition.2013; 18(4): 354. CrossRef
Effects of age on changes of body composition through caloric restriction in overweight and obese women
Jung-Eun Yim, Young-Seol Kim, Ryowon Choue
Journal of Nutrition and Health.2013; 46(5): 410. CrossRef
Nutrient Intake, the Concentrations of Leptin, Adiponectin, Cotisol & Insulin by the Body Fat Content of Women
Soon Yei Lee, Hyun Sook Bae
Korean Journal of Community Nutrition.2012; 17(6): 714. CrossRef
Relationship between Nutrients Intakes, Dietary Quality, and Serum Concentrations of Inflammatory Markers in Metabolic Syndrome Patients
Misung Kim, Juyoung Kim, Wookyung Bae, Sohye Kim, Yesong Lee, Woori Na, Cheongmin Sohn
Korean Journal of Community Nutrition.2011; 16(1): 51. CrossRef
Comparison of Serum Insulin, Leptin, Adiponectin and High Sensitivity C-Reactive Protein Levels according to Body Mass Index and their Associations in Adult Women
Mi Young Lee, Jung Hee Kim
Korean Journal of Community Nutrition.2011; 16(1): 126. CrossRef

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[Korean]
Regional Differences in Dietary Total Fat and Saturated Fatty Acid Intake and Their Associations with Metabolic Diseases among Korean Adults: Using the 2016~2019 Korea National Health and Nutrition Examination Surveys: SuJin Song, Jae Eun Shim; Korean J Community Nutr 2021;26(6):495-507. Published online December 31, 2021; DOI: https://doi.org/10.5720/kjcn.2021.26.6.495

Abstract PDF

Objectives
This study examined regional differences in the intake of dietary total fat and saturated fatty acid (SFA) and their food sources among Korean adults. We also investigated the associations of SFA intake with metabolic diseases by region.
Methods
This study included 13,926 adults ( 19y) who participated in the 2016 ~ 2019 Korea National Health and Nutrition Examination Surveys. The regions were divided into urban and rural areas according to the administrative districts where the participants lived. Using dietary data obtained from a 24-h recall, intake of total fat and SFA and their food sources were assessed by region. Metabolic diseases included obesity, abdominal obesity, and elevated total cholesterol and their association with SFA intake by region were examined using multiple logistic regression.
Results
Of the participants, 19.6% lived in rural areas. In urban areas, the total fat and SFA intakes were higher than in rural areas: 21.2% of energy (%E) came from total fat and 6.9%E from SFA in urban areas, whereas 18.0%E came from total fat and 5.8%E from SFA in rural areas. The percentage of participants who exceeded the dietary reference intakes for total fat and SFA in urban areas was 16.5% and 41.9%, respectively, but 43.4% of participants in rural areas showed lower intake levels for total fat compared to the reference level. Young adults did not show regional differences in fat intake, and the percentage of subjects who exceeded the reference for SFA was high both in urban (58.5%) and rural (55.7%) areas. Among middle-aged and older adults, intake of fatty acids except for n-3 fatty acid was significantly higher in urban areas than in rural areas. About 69% of older adults in rural areas showed a lower intake of total fat compared to the reference level. The food sources for total fat and SFA were meat, soybean oil, eggs, and milk in both areas. The intake of fat from eggs, milk, mayonnaise, and bread was higher in urban areas, but the intake of fat from white rice and coffee mix was higher in rural areas. The SFA intake was positively associated with elevated serum total cholesterol in urban areas (4th quartile vs. 1st quartile, OR: 1.22, 95% CI: 1.06-1.40, P for trend: 0.043), but not in rural areas.

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Associations of Dietary Intake With Cardiovascular Diseases, Blood Pressure, and Lipid Profile in the Korean Population: An Updated Systematic Review and Meta-Analysis
Jeongseon Kim, Madhawa Gunathilake, Tung Hoang, Oh Yoen Kim
Journal of Lipid and Atherosclerosis.2026; 15(1): 111. CrossRef
Association between Diet Quality and Knee Osteoarthritis: Insights from the Korea National Health and Nutrition Examination Survey 2013
Hyunmi Han, Clara Yongjoo Park
Journal of Bone Metabolism.2025; 32(4): 297. CrossRef
Regional differences in protein intake and protein sources of Korean older adults and their association with metabolic syndrome using the 2016–2019 Korea National Health and Nutrition Examination Surveys: a cross-sectional study
You-Sin Lee, Yoonna Lee
Korean Journal of Community Nutrition.2024; 29(3): 173. CrossRef
Association between the Korean Healthy Diet Score and Metabolic Syndrome: Effectiveness and Optimal Cutoff of the Korean Healthy Diet Score
Soo-Hyun Kim, Hyojee Joung
Nutrients.2024; 16(19): 3395. CrossRef
Biochemical characteristics, nutrient intakes, and chronic disease risk according to the dietary fat energy ratio in middle-aged Korean: a cross-sectional study using data from the 7th (2016–2018) Korean National Health and Nutrition Examination Survey
Ga-Hyeon Jeong, Sook-Bae Kim
Korean Journal of Community Nutrition.2024; 29(6): 528. CrossRef
Estimating and evaluating usual total fat and fatty acid intake in the Korean population using data from the 2019–2021 Korea National Health and Nutrition Examination Surveys: a cross-sectional study
Gyeong-yoon Lee, Dong Woo Kim
Korean Journal of Community Nutrition.2023; 28(5): 414. CrossRef
Associations of Dietary Intakes of Total and Specific Types of Fat with Blood Lipid Levels in the Filipino Women’s Diet and Health Study (FiLWHEL)
Heejin Lee, Hyojin Kim, Sherlyn Mae P. Provido, Minji Kang, Grace H. Chung, Jae W. Lee, Sangmo Hong, Sung Hoon Yu, Chang Beom Lee, Jung Eun Lee
Global Heart.2023; 18(1): 29. CrossRef
Regional Differences in Metabolic Risk in the Elderly in Korea
Ji-Myung Kim, Yun-Jung Bae
International Journal of Environmental Research and Public Health.2022; 19(18): 11675. CrossRef

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[Korean]
Influence of Internal and External Capacity on Adults' Food Waste Disposal Capacity: Ji Eun Kim, Kyoung Sook Choi; Korean J Community Nutr 2021;26(6):455-466. Published online December 31, 2021; DOI: https://doi.org/10.5720/kjcn.2021.26.6.455

Abstract PDF: Objectives
The purpose of this study was to investigate the effects of internal and external capacity on the practical capacity for food waste disposal in adults.
Methods
The study subjects were 410 adults who answered a structured questionnaire. The survey was conducted in January 2021. Data were analyzed through descriprive analysis, t-test, ANOVA, and multiple regression analysis using the SPSS Win 24.0.
Results
First, in the analysis of internal capacity, attitude (3.95 out of 5 points) scored higher than knowledge (3.59 points). Attitudes showed significant differences according to gender (P < 0.001), age (P < 0.001), and income (P < 0.001). Knowledge showed significant differences according to gender (P < 0.01) and age (P < 0.05). Second, in the analysis of capacity, market constraints (3.73 points) scored the highest, followed by institutional conditions (3.48 points) and reference group (3.36 points). Market constraints differed according to gender (P < 0.001), and institutional conditions differed according to income (P < 0.001). There was a significant difference in the reference group according to the level of education (P < 0.05) and income (P < 0.05). Third, the practical capacity scores appeared in the order of separating discharge behavior, using behavior, purchasing behavior, and leadership behavior. Separating discharge behavior showed significant differences according to gender (P < 0.001), education level (P < 0.05), and income (P < 0.01). Using behavior showed a difference according to gender (P < 0.01), and purchasing behavior showed a significant difference according to income (P < 0.05). Leadership behavior showed no difference according to demographic factors. Fourth, internal capacity and external capacity showed a significant positive relationship with practical capacity. Factors affecting purchasing behavior were knowledge, attitude, institutional conditions, and reference group, and their explanatory power was 53%. Factors influencing using behavior were knowledge, attitude, institutional conditions, and reference group, and had an explanatory power of 37%. Leadership behavior was influenced by institutional conditions and the reference group, with an explanatory power of 31%.
Conclusions
Internal capacity, external capacity, and practical capacity show differences according to demographic factors. Factors influencing the practical capacity of adults were knowledge, attitude, institutional conditions, and reference group.

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Research Note

[Korean]
Basic Concepts and Detailed Dimensions of Food Security and Related Indicators for Policy Development and Evaluation: Sohyun Park, Ji-Yun Hwang, Jae Eun Shim, Kirang Kim; Korean J Community Nutr 2021;26(6):429-440. Published online December 31, 2021; DOI: https://doi.org/10.5720/kjcn.2021.26.6.429

Abstract PDF

Objectives
Standardized guidelines and reference points for a food security policy are necessary to guarantee that basic social safety nets work properly. Therefore, this study aimed to explore the basic concepts and detailed dimensions of food security, including the potential relevant indicators, and sought to establish standardized well-being baselines.
Methods
A literature review and 14 expert roundtable discussions were carried out to analyze and extract the key concepts of food security. After determining these concepts and detailed dimensions of food security, a conceptual framework was modeled. Then, indicators for each local government that could be monitored and evaluated for each sub-area were suggested.
Results
The concept of food security was defined as follows: Individuals should be provided with sufficient, safe, and quality food, which should be accessible to the community and available for use to achieve health and well-being. In addition, food security should be ensured sustainably in a changing environment. Four dimensions were suggested while conceptualizing food security. First, sufficient food, which means sufficient food supply in quantity, quality, and safety. Second, equitable food which includes creating environments in which high-quality and safe food can be purchased at an appropriate price and can be provided regardless of the socioeconomic gap. Third, healthy food which should be provided to promote people’s health and happiness through the eco-friendly consumption of food. Fourth, sustainable food, which can be supplied in a sustainable manner and as part of an eco-friendly food system that considers the conservation of natural environments.
Conclusions
The basic concepts and detailed areas of food security including the potential indicators proposed in this study, may be useful for developing and implementing various policies and programs to support food and nutrition security in the future.

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Achieving National Food Security in Sub‐Saharan African Countries: The Role of Foreign Agricultural Aid
Mehmet Balcilar, Godwin Olasehinde‐Williams, Berkan Tokar
Food and Energy Security.2025;[Epub] CrossRef
Prediction model for identifying a high-risk group for food insecurity among elderly South Koreans
Myeunghee Han
Scientific Reports.2025;[Epub] CrossRef

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Research Article

[Korean]
Management of Food Allergy in the Facilities Registered at Center for Children's Foodservice Management in Gangdong-gu: Soon Mi Kim; Korean J Community Nutr 2021;26(5):396-407. Published online October 31, 2021; DOI: https://doi.org/10.5720/kjcn.2021.26.5.396

Abstract PDF

Objectives
We examined the common allergenic foods, symptoms and management of food allergies in children attending the facilities registered at Center for Children's Foodservice Management in Gangdong-gu, Korea. Methods: The survey was conducted among the directors or head teachers of 186 children’s food service facilities with 7,591 children in 2019. The questionnaire consisted of three parts, including general information about food service facilities, information related to food allergies and allergenic foods and symptoms in individual children. Results: The number of children with food allergy was 271 (3.6%), and the proportion decreased with the increase of age. There were 91 children (33.6%) with a medical certificate, and these children had a significantly higher number of allergenic foods and symptoms than those without a medical certificate. Allergenic food groups included meat, fish, eggs and legumes (59.1%), fruits (12.4%), milk and dairy products (8.9%), cereals (7.8%), vegetables (6.2%), processed foods (3.8%) and oils and sugars (1.9%). Eggs accounted for 22.1%, followed by peanut and tree nuts (18.6%), fruits (12.4%), milk and dairy products (8.9%), shellfish (8.6%), vegetables (6.2%), fish (5.7%), cereals (4.3%) and meat (1.1%). The common allergenic foods were eggs, peanuts, walnuts, kiwi, shrimp, milk, tomatoes, mackerel, blue-green fish, peaches, shellfish (clams and abalone), buckwheat, wheat and soybeans. The most common allergic symptoms were skin and mucous membrane symptoms, such as hives, rash, itching and oral angioedema. Meal management for children with food allergies showed different trends depending on the causative food. Conclusions: The objective diagnosis by an allergist should be done for food allergy management in children's catering facilities. A system for systematic meal management of causative foods should be prepared.

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Knowledge and management of food allergy by parents of preschool children who experience food allergies
Seung Hui Kim, Seung-Min Lee
Journal of Nutrition and Health.2023; 56(2): 184. CrossRef
Knowledge of atopic dermatitis and food allergies, as well as health information literacy, among North Korean refugee mothers: a descriptive survey study
In-Sook Lee, Jeong-Hee Jeon
Child Health Nursing Research.2023; 29(4): 300. CrossRef

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Research Note

[Korean]
Development of 3D Printed Snack-dish for the Elderly with Dementia: Ji-Yeon Lee, Cheol-Ho Kim, Kug-Weon Kim, Kyong-Ae Lee, Kwangoh Koh, Hee-Seon Kim; Korean J Community Nutr 2021;26(5):327-336. Published online October 31, 2021; DOI: https://doi.org/10.5720/kjcn.2021.26.5.327

Abstract PDF

Objectives
This study was conducted to create a 3D printable snack dish model for the elderly with low food or fluid intake along with barriers towards eating. Methods: The decision was made by the hybrid-brainstorming method for creating the 3D model. Experts were assigned based on their professional areas such as clinical nutrition, food hygiene and chemical safety for the creation process. After serial feedback processes, the grape shape was suggested as the final model. After various concept sketching and making clay models, 3D-printing technology was applied to produce a prototype. Results: 3D design modeling process was conducted by SolidWorks program. After considering Dietary reference intakes for Koreans (KDRIs) and other survey data, appropriate supplementary water serving volume was decided as 285 mL which meets 30% of Adequate intake. To consider printing output conditions, this model has six grapes in one bunch with a safety lid. The FDM printer and PLA filaments were used for food hygiene and safety. To stimulate cognitive functions and interests of eating, numbers one to six was engraved on the lid of the final 3D model. Conclusions: The newly-developed 3D model was designed to increase intakes of nutrients and water in the elderly with dementia during snack time. Since dementia patients often forget to eat, engraving numbers on the grapes was conducted to stimulate cognitive function related to the swallowing and chewing process. We suggest that investigations on the types of foods or fluids are needed in the developed 3D model snack dish for future studies.

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3D Printing Technology : Food Tech Analysis
Yuri Kim, Hyun-Jung Yun, Bum-Keun Kim, Hee-Don Choi, Yun-Sang Choi
Resources Science Research.2022; 4(1): 1. CrossRef

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Research Articles

[Korean]
Estimation of the Usual Food Intake Distribution Reflecting the Consumption Frequency and a Comparison of the Proportion of Non-consumers: Based on the KNHANES 2009: Su Ji Ham, Dong Woo Kim; Korean J Community Nutr 2021;26(4):296-306. Published online August 31, 2021; DOI: https://doi.org/10.5720/kjcn.2021.26.4.296

Abstract PDF

Objectives
The objective of this study was to estimate the distribution of the usual dietary intake of foods with respect to the probability of consumption derived from the Food Frequency Questionnaire (FFQ) of the 2009 Korea National Health and Nutrition Examination Survey (KNHANES).
Methods
The intake quantity and frequency of 63 food items were assessed from the 2009 KNHANES which was completed by 7,708 participants. The participants completed one or two 24-h dietary recalls and one FFQ. The usual intake distribution was estimated using the multiple source method (MSM), and the proportion of nonconsumers was calculated through the usual intake distribution. This was then compared with the proportion of non-consumers from the 24-hour recall method.
Results
The difference in the proportion of non-consumers ranged from 2% to 82.9%, indicating that there is a very large difference based on food groups. The food groups in which the proportion of non-consumers did not differ was composed of foods consumed daily, such as ‘rice’, ‘cereal and barley’, and ‘Chinese cabbage and kimchi’, or foods with distinct palatability such as ‘coffee’ and ‘alcohol’. On the other hand, in the case of the food groups with a high difference in the proportion of non-consumers, most comprised fruits that emphasized seasonality.
Conclusions
In the case of foods or food groups that are occasionally consumed, it is desirable to use 2 recalls with additional FFQ data by combining the consumption frequency and the quantity consumed.

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Accuracy of 24-Hour Dietary Recalls among Free-Living Older Korean Adults: Validation against Weighed Intakes
Jieun Mun, Suyoung Kim, Kanghee Kim, Chaeyeon Nam, Sein Kim, Clara Y Park
The Journal of Nutrition.2025; 155(12): 4446. CrossRef
Fraction of cancer incidence and mortality attributable to dietary factors in Korea from 2015 to 2030
Hyun Jeong Cho, Jin Young Yoo, Ga-Eun Yie, An Na Kim, Soseul Sung, Sungji Moon, Youjin Hong, Sangjun Lee, Inah Kim, Kwang-Pil Ko, Sun-Seog Kweon, Jung Eun Lee, Sue K. Park
Epidemiology and Health.2025; 47: e2025065. CrossRef
Dietary Management of Obesity
Sang Hoon Lee, San Ha Kim, Sung Chul Park
The Korean Journal of Gastroenterology.2024; 83(3): 87. CrossRef

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[Korean]
Comparison of the Sodium and Sugar Reduction Practices at Samsam Foodservices and General Foodservices in Daegu: Sung-young Kwon, Kilye Kim, Yeon-Kyung Lee; Korean J Community Nutr 2021;26(4):270-279. Published online August 31, 2021; DOI: https://doi.org/10.5720/kjcn.2021.26.4.270

Abstract PDF

Objectives
The purpose of this study was to evaluate the effect of the sodium and sugar reduction practices of the Samsam foodservice project of Daegu, in comparison with that of general foodservices in Daegu. Methods: A survey was conducted on 80 Samsam foodservice workers and 80 general foodservice workers from Sep. to Oct. 2020. We compared each worker's taste preferences, stage of behavior change and dietary behavior regarding sodium and sugar, and each foodservice's practices regarding sodium and sugar reduction. Results: There was no significant difference between the salty taste and sweet taste preferences between the workers at the Samsam foodservices and those at the general foodservices. The percentage of foodservice workers in action or maintenance stage of behavior change for eating less salty was higher in the Samsam foodservices than in the general foodservices (P < 0.05). In addition, regarding the degree of saltiness and sweetness of meals, the workers at the general foodservices perceived their meals to be saltier (P < 0.001) and sweeter (P < 0.01) than the workers at Samsam foodservices. The workers at Samsam foodservices had fewer salty dietary behaviors compared to the workers at general foodservices (P < 0.01). The sodium reduction practice was significantly higher in the Samsam foodservices than the general foodservices (P < 0.001), especially in “efforts to make the food as bland as possible overall” (P < 0.001), and “serving less soup and stew” (P < 0.001). The sugar reduction practice too was significantly higher in the Samsam foodservices than the general foodservices (P < 0.001). Conclusions: The Samsam foodservices were shown to be better in the practice of sodium and sugar reduction compared to general foodservices. Therefore, it is necessary to provide continuous and practical support and incentives at the national level to expand the sodium and sugar reduction practices in foodservices.

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Comparison of participant and non-participant perceptions on healthy restaurant for sodium reduction: a qualitative study
Jeehee Pyo, Mina Lee, Yunjeong Jang, Minsu Ock
Nutrition Research and Practice.2023; 17(3): 503. CrossRef

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[Korean]
A Study on the Dietary and Lifestyle Changes of Middle-Aged Women in the Gwangju Area in the COVID-19 Era: Moon-Soon Kim, Bok-Mi Jung; Korean J Community Nutr 2021;26(4):259-269. Published online August 31, 2021; DOI: https://doi.org/10.5720/kjcn.2021.26.4.259

Abstract PDF

Objectives
This study aimed to investigate the changes in the eating habits and lifestyle of middle-aged women in Gwangju during the COVID-19 pandemic. Methods: A total of 428 middle-aged women aged between 40 and 60 participated in a survey relating to general information, food and lifestyle, health functional food, and menopausal symptoms. The correlation between the variables was analyzed. Results: In the positive habits, the intake of nutritional supplements for immunity enhancement increased the most, followed by the use of media to learn healthy eating tips, and diets including healthy food. Negative habits increased in the order of frequency of taking delivery orders, levels of stress or anxiety, and time spent sitting or watching movies. In the case of recommended foods, the intake increased the most in the order of eggs, fruits, vegetables, milk/dairy products, and seaweed. Non-recommended foods increased in the order of meat, bread, rice, and noodles. The awareness of health functional foods was in the increasing order of interest, knowledge, consumption experience, and purchase amount. The type of health functional food intake was in the increasing order of probiotics, multivitamin and mineral supplements, vitamin C, collagen, and omega-3. Menopausal symptoms were in the increasing order of bone and joint pain, poor sleep quality, emotional ups and downs, loneliness, and feeling of emptiness. In the correlation of major variables, positive habits showed a significant positive correlation with recommended food intake and the recognition of health functional foods. Negative habits showed a significant positive correlation with non-recommended food intake and a significant positive correlation with menopausal symptoms. Recommended food intake showed a significant positive correlation with health functional food recognition and intake and menopausal symptoms. Conclusions: This study suggests that it is necessary to establish social measures to reduce the negative effects of the COVID-19 pandemic on middle-aged women and to ensure effective self-management through a healthy lifestyle since the pandemic has a long-term impact.

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Ingyeong Kang, Hyunsook Jang, Minchul Gim, Sang Eun Bae, Yu Jin Lee, Chai Sun Leem, Yoo Kyoung Park
Nutrients.2025; 17(17): 2801. CrossRef
Comparative study on the health and dietary habits of Korean male and female adults before and after the coronavirus disease 2019 pandemic: utilizing data from the 8th Korea National Health and Nutrition Examination Survey (2019–2021)
Chaemin Kim, Eunjung Kim
Korean Journal of Community Nutrition.2024; 29(1): 65. CrossRef
Quality Characteristics of Staple Breads Based on Baking Methods
Eun-Hee Doo
Journal of the East Asian Society of Dietary Life.2024; 34(1): 77. CrossRef
Changes in Ultra-Processed Food Consumption among Adolescents before and after the COVID-19 Pandemic : Using Data from the 7th (2018~2019) and 8th (2020~2021) Korea National Health and Nutrition Examination Survey
Hyun-Jin Hwang, Yoo Kyeong Kim
Korean Journal of Human Ecology.2024; 33(6): 981. CrossRef
Dietary guidelines adherence and changes in eating habits among college students in the post-COVID-19 period: a cross-sectional study
Eunyoung Yoon
Korean Journal of Community Nutrition.2023; 28(3): 220. CrossRef
Changes in dietary habits and chronic diseases before and after COVID-19 by regions using data from the 2018-2020 Korea Community Health Survey and Consumer Behavior Survey for Foods: a cross-sectional study
Surim Park, Eun-hee Jang, Seungmin Lee
Korean Journal of Community Nutrition.2023; 28(2): 124. CrossRef
광주광역시 지역민의 영양교육 요구도 조사 분석
은평 양, 경윤 김, 승희 최, 금비 류, 옥경 김, 정미 윤
Korean Journal of Food and Cookery Science.2023; 39(2): 100. CrossRef
Consumers’ perceptions of dietary supplements before and after the COVID-19 pandemic based on big data
Eunjung Lee, Hyo Sun Jung, Jin A Jang
Journal of Nutrition and Health.2023; 56(3): 330. CrossRef
Self-rated health according to change of lifestyle after COVID-19: Differences between age groups
Dan Bi Lee, Jung Hyun Ahn, Jin Young Nam
Korean Journal of Health Education and Promotion.2022; 39(2): 1. CrossRef
Factors Related to Changes of Daily Life during COVID-19
Kyungjin Min, Pilhan Yun, Sangshin Park
Journal of Health Informatics and Statistics.2022; 47(4): 297. CrossRef
Dietary Behavior and Diet Quality in the Korean Adult Population by Income Level before and after the COVID-19 Pandemic: Using the Korean National Health and Nutrition Examination Survey (2019-2020)
Hye-Min Na, Bok-Mi Jung
The Korean Journal of Community Living Science.2022; 33(3): 397. CrossRef

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[Korean]
Analysis of Awareness, Knowledge, and Behavior about Food Hygiene·Safety Among the elderly: Mi Sook Lee, Sim-Yeol Lee; Korean J Community Nutr 2021;26(3):200-210. Published online June 30, 2021; DOI: https://doi.org/10.5720/kjcn.2021.26.3.200

Abstract PDF

Objectives
This study was conducted to investigate the awareness, knowledge, and behavior about food hygiene·safety among the elderly, and to provide basic data on this for their healthy dietary life.
Methods
The study was conducted through a survey using a self-administered questionnaire on 473 elderly people over 60 years old living in Seoul and Gyeonggido. The questionnaire was designed to examine general characteristics, meal preparation status, the relation between awareness, knowledge, food hygiene behavior, and safety.
Results
Among the particpants, 44.2% of the total people surveyed were elderly married couples, and 14.0% were single-person households. For men, most of the meals were prepared by the spouse (74.1%), and among women, 93.8% prepared their meals themselves (P < 0.001). 61.3% of the total subjects answered that they were very interested in food hygiene and safety. Men (32.4%) thought it was more difficult to collect food hygiene·safety information compared to women (14.0%, P < 0.001). The knowledge score about food hygiene·safety was 0.60 (P < 0.05) and the behavior score was 3.70 (P < 0.001). The correlation coefficient between knowledge and behavior according to food hygiene·safety was 0.371 (P < 0.001).
Conclusions
The food hygiene·safety behavior of the elderly was associated with knowledge (P < 0.001). Therefore, food hygiene·safety education is necessary to ensure information availability and promote the health of the elderly.

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Understanding the Impact of Food Safety Knowledge on Food Label Checking Behavior : The Mediating Role of Interest in Food Safety
DongYoung Kim, HeeSun Park, Sunny Ham
Journal of the East Asian Society of Dietary Life.2025; 35(3): 171. CrossRef

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[Korean]
Analysis of Surveys to Determine the Real Prices of Ingredients used in School Foodservice: Seo-Hyun Lee, Min A Lee, Jae-Yoon Ryoo, Sanghyo Kim, Soo-Youn Kim, Hojin Lee; Korean J Community Nutr 2021;26(3):188-199. Published online June 30, 2021; DOI: https://doi.org/10.5720/kjcn.2021.26.3.188

Abstract PDF: Objectives
The purpose was to identify the ingredients that are usually surveyed for assessing real prices and to present the demand for such surveys by nutrition teachers and dietitians for ingredients used by school foodservice.
Methods
A survey was conducted online from December 2019 to January 2020. The survey questionnaire was distributed to 1,158 nutrition teachers and dietitians from elementary, middle, and high schools nationwide, and 439 (37.9% return rate) of the 1,158 were collected and used for data analysis.
Results
The ingredients which were investigated for price realities directly by schools were industrial products in 228 schools (51.8%), fruits in 169 schools (38.4%), and specialty crops in 166 schools (37.7%). Moreover, nutrition teachers and dietitians in elementary, middle, and high schools searched in different ways for the real prices of ingredients. In elementary schools, there was a high demand for price information about grains, vegetables or root and tuber crops, special crops, fruits, eggs, fishes, and organic and locally grown ingredients by the School Foodservice Support Centers. Real price information about meats, industrial products, and pickled processed products were sought from the external specialized institutions. In addition, nutrition teachers and dietitians in middle and high schools wanted to obtain prices of all of the ingredients from the Offices of Education or the District Office of Education.
Conclusions
Schools want to efficiently use the time or money spent on research for the real prices of ingredients through reputable organizations or to co-work with other nutrition teachers and dietitians. The results of this study will be useful in understanding the current status of the surveys carried out to determine the real price information for ingredients used by the school foodservice.

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[Korean]
Do American Consumers Perceive Corporate Social Responsibility Actions and Exhibit Loyalty Intentions Differently according to the Reputation of Fast Food Restaurants?: Kiwon Lee, Youngmi Lee; Korean J Community Nutr 2021;26(3):177-187. Published online June 30, 2021; DOI: https://doi.org/10.5720/kjcn.2021.26.3.177

Abstract PDF: Objectives
This study investigated the different perceptions of customers toward traditional and non-traditional fast-food restaurants regarding restaurant healthfulness, corporate reputation, and the impact of corporate reputation on loyalty intentions through corporate social responsibility (CSR) motive.
Methods
An online survey was conducted on U.S. residents who were aware of fast food restaurants’ CSR activities. Participants selected one fast food restaurant participating in CSR activities, coded as either traditional (n = 117) or non-traditional (n = 48), and answered questions about the selected restaurant’s healthfulness, reputation, CSR motives, and loyalty intentions. The participants’ perceptions of healthfulness and corporate reputation of the two types of fast-food restaurants were compared. A mediation path of corporate reputation – CSR motive – loyalty intention was analyzed.
Results
Non-traditional fast-food restaurants (5.02 ± 1.26) were perceived to be more healthful than traditional ones (3.93 ± 1.72). The participants perceived that compared to traditional fastfood restaurants, non-traditional ones had a better overall corporate reputation (P = 0.037), were more concerned about their customers (P = 0.029), better workplaces (P = 0.007), more environmentally and socially responsible (P < 0.001), and offered higher quality products and services (P = 0.042). Significant positive correlations were shown between restaurant healthfulness and corporate reputation (P < 0.001 for all reputation items). The suggested mediation path was supported with 95% CIs excluding zero, implying that when fast-food restaurants had a better reputation overall, were customer oriented, good employers, strong companies with a good product and service quality, social and environmental responsibility, the participants were more likely to perceive their CSR activities to be sincere and were hence loyal to that restaurant.
Conclusions
Overall, participants were more favorable towards non-traditional fast-food restaurants which had a healthier image and better reputation than traditional ones. Therefore, fast food restaurants need to consider offering healthy food and enhance their image, which would maximize the return on their investment in CSR.

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[Korean]
Awareness and Practice of Sugar Reduction in School Foodservice and the Practice of Nutrition Education in Daegu: Suhyang Jang, Kilye Kim, Yeon-Kyung Lee; Korean J Community Nutr 2021;26(3):167-176. Published online June 30, 2021; DOI: https://doi.org/10.5720/kjcn.2021.26.3.167

Abstract PDF

Objectives
This study was conducted to identify the awareness and practice of reducing sugar in school meals and the status of nutrition education regarding sugar reduction.
Methods
An online survey was conducted on 101 nutrition teachers (dietitians) working at elementary, middle, and high schools in Daegu.
Results
School nutrition teachers in Daegu recognized the need for efforts to reduce the sugar intake in the Korean diet, and it was found that elementary nutrition teachers were more aware of the implementation of the sugar reduction policy at the national level than middle and high school nutrition teachers (P = 0.002). Among the policies to reduce sugar intake at the national level, there was a high need for the promotion of self-control and limiting the sales of food with high sugar content in schools and their vicinity. The degree of practice for reducing sugar in school meals was found to be higher in the preparation, purchase, and cooking stage compared to the serving stage (P < 0.05). There was a high need for changing the preferences of the subjects for a sweet taste as a means of reducing the sugar in school meals. Thirty-six percent of nutrition teachers conducted sugar reduction education, and sending out school newsletters was the highest type of nutrition education at 80.6%.
Conclusions
To effectively promote reduced sugar intake in school meals, it is necessary to change the preference of the subjects for sweetness and to conduct continuous education that can improve the awareness of people for reducing their sugar intake. For this, it is necessary to set aside time for nutrition education and to prepare an institutional framework for providing this education.

Citations

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Review

[English]
Defining Food Literacy and Its Application to Nutrition Interventions: A scoping Review: Hye lim Yoo, Eun bin Jo, Kirang Kim, Sohyun Park; Korean J Community Nutr 2021;26(2):77-92. Published online April 30, 2021; DOI: https://doi.org/10.5720/kjcn.2021.26.2.77

Abstract PDF

Objectives
Food literacy (FL) can be an important concept that embodies the nutritional capabilities of individuals. The purpose of this study was to introduce the definition and core elements of FL from previous literature, to summarize measurement tools and intervention programs with FL, and to suggest the direction of future research and programs to integrate the concept of FL. Methods: The literature review was conducted through PubMed and Google Scholar databases by combining the search term ‘food literacy’ with ‘definition’, ‘measurement’, ‘questionnaire’, ‘intervention’, and ‘program’. Among the 94 papers primarily reviewed 31 manuscripts that suited the purpose of the study were used for analyses. Results: There is no consensus on the definition of FL that encompasses the multidimensional aspects of the concept. The definitions of FL were slightly different depending on the authors, and the interpretation of the core elements also varied. Based on the review, we propose a framework of FL that is in line with the current discussion among international researchers. This focuses on the core elements adapted from health literacy, namely functional, interactive, and critical FL. Specifically, we suggest some detailed elements for interactive and critical FL, which were often the subject of divergent views among researchers in previous literature. We found that most of the tools in the reviewed literature provided information on validity and reliability and were developed for a specific target population. Also, most of the tools were focused on functional FL. Similarly, most of the interventions targeted functional FL. Conclusions: This study reviewed the definition and core elements of FL, available measurement tools, and intervention programs using validated tools. We propose the development of tools with sound reliability and validity that encompass the three core elements of FL for different age groups. This will help to understand whether improving food literacy can translate into better nutritional intake and health status among individuals and communities.

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