Korean Journal of Community Nutrition

[English]
Eating habits and dietary supplement utilization according to food-related lifestyle among Korean adults: a cross-sectional study: EunJung Lee, Jin A Jang, Ji-Myung Kim; Korean J Community Nutr 2024;29(4):253-264. Published online August 31, 2024; DOI: https://doi.org/10.5720/kjcn.2024.00017

Abstract PDF PubReader ePub: Objectives
This study investigated the association between eating habits and the utilization of dietary supplements (DSs) according to food-related lifestyle (FRL) among Korean adults. Methods: This study included a total of 300 participants (150 men and 150 women) in their 20s to 60s living in Seoul and Gyeonggi Province. We identified two groups by factor and cluster analysis: an ‘active pursuit’ group and a ‘passive pursuit’ group. Differences in eating habits and DS utilization between the two groups were analyzed by chi-square test and t-test. Logistic regression analysis was used to analyze the effect of variables on DS consumption according to FRL. Results: There were significant differences between the two groups in terms of age, alcohol drinking frequency, total dietary score, change in DS consumption after coronavirus disease 2019, and current DS consumption (P < 0.05). The proportion who perceived many health benefits of DSs was higher in the ‘active pursuit’ group than in the ‘passive pursuit’ group (P = 0.003). The most commonly consumed type of DSs was multivitamins & minerals for the ‘active pursuit’ group, and omega-3 fatty acids for the ‘passive pursuit’ group. The ‘an active pursuit’ group consumed DSs 2.93 times more (95% confidence interval [CI]: 1.44–5.97) compared to the ‘passive pursuit’ group, after adjusting for confounders. In the ‘active pursuit’ group, the health pursuit (odds ratio [OR] = 6.54, 95% CI: 1.44– 29.61) and rational consumption pursuit factors (OR = 0.26, 95% CI: 0.08–0.83) were associated with DS consumption, whereas only the health pursuit factor had a significant association (OR = 5.37, 95% CI: 2.08–13.88) within the ‘passive pursuit’ group. However, total dietary score and DSs consumption did not show a relationship. Conclusions: By understanding the consumption characteristics of DSs according to FRL, this can serve as basic data necessary for promoting health through the utilization of DSs and healthy behaviors.

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[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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[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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[Korean]
Process evaluation of a mobile healthcare program among employees with overweight and obesity: a 12-week intervention study investigating the role of engagement: Imhuei Son, Jiyoun Hong, Young Hee Han, Bo Jeong Gong, Meng Yuan Zhang, Woori Na, Cheongmin Sohn, Taisun Hyun; Korean J Community Nutr 2023;28(6):466-479. Published online December 31, 2023; DOI: https://doi.org/10.5720/kjcn.2023.28.6.466

Abstract PDF: Objectives
A mobile health intervention program was provided for employees with overweight and obesity for 12 weeks, and a process evaluation was completed at the end of the program. We investigated participant engagement based on app usage data, and whether engagement was associated with the degree of satisfaction with the program.
Methods
The program involved the use of a dietary coaching app and a wearable device for monitoring physical activity and body composition. A total of 235 employees participated in the program. App usage data were collected from a mobile platform, and a questionnaire survey on process evaluation and needs assessment was conducted during the post-test.
Results
The engagement level of the participants decreased over time. Participants in their 40s, high school graduates or lower education, and manufacturing workers showed higher engagement than other age groups, college graduates, and office workers, respectively. The overall satisfaction score was 3.6 out of 5. When participants were categorized into three groups according to their engagement level, the upper group was more satisfied than the lower group. A total of 71.5% of participants answered that they wanted to rejoin or recommend the program, and 71.9% answered that the program was helpful in improving their dietary habits. The most helpful components in the program were diet records and a 1:1 chat with the dietary coach from the dietary coaching app. The barriers to improving dietary habits included company dinners, special occasions, lack of time, and eating out. The workplace dietary management programs were recognized as necessary with a need score of 3.9 out of 5.
Conclusions
Participants were generally satisfied with the mobile health intervention program, particularly highly engaged participants. Feedback from a dietary coach was an important factor in increasing satisfaction.

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[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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[Korean]
Association between health financial capacity of local governments and health behaviors of local residents: a cross-sectional study: Miyong Yon; Korean J Community Nutr 2023;28(2):95-103. Published online April 30, 2023; DOI: https://doi.org/10.5720/kjcn.2023.28.2.95

Abstract PDF: Objectives
The budget gap in the health sector of local governments affects the supply of health services, which can cause the health gap. This study classified local governments according to their financial characteristics, such as local financial independence and health budget level. It analyzed the health behaviors and disease prevalence of local residents to examine the effect of local government financial investment on the health of local residents.
Methods
To classify types according to the financial characteristics of local governments, financial independence and the health budget data for 17 local governments were collected from the local fiscal yearbook of the Ministry of Public Administration and Security. The prevalence of chronic diseases and healthy behavior was compared using the 16,333 data of adults between the ages of 30 and 65 years among the original data of the National Health and Nutrition Examination Survey (2016–2020).
Results
Cluster analysis was used to classify local governments into five clusters according to the health financial capacity type. A comparison of the prevalence of local residents by cluster revealed a similar prevalence of hypertension, diabetes, and hypercholesterolemia. On the other hand, the obesity rate (P < 0.01), high-risk drinking rate (P < 0.01), aerobic physical activity rate (P < 0.001), and healthy eating practice rate (P < 0.001) were significantly different. In addition, an analysis of the odds ratio based on the Seoul area revealed a higher risk of health behavior of non-Seoul residents.
Conclusions
It is necessary to review the universal health promotion project budget considering the degree of regional financial vulnerability from the viewpoint of health equity to narrow the health gap among regions.

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[English]
Effectiveness of a mobile health intervention on weight loss and dietary behavior changes among employees with overweight and obesity: a 12-week intervention study investigating the role of engagement: Imhuei Son, Jiyoun Hong, Young-Hee Han, Bo Jeong Gong, Meng Yuan Zhang, Woori Na, Cheongmin Sohn, Taisun Hyun; Korean J Community Nutr 2023;28(2):141-159. Published online April 30, 2023; DOI: https://doi.org/10.5720/kjcn.2023.28.2.141

Abstract PDF

Objectives
This study aimed to determine whether a mobile health (mhealth) intervention is effective in reducing weight and changing dietary behavior among employees with overweight and obesity. The study also investigated whether engagement with the intervention affected its effectiveness.
Methods
The intervention involved the use of a dietary coaching app, a wearable device for monitoring physical activity and body composition, and a messenger app for communicating with participants and an intervention manager. A total of 235 employees were recruited for a 12-week intervention from eight workplaces in Korea. Questionnaire surveys, anthropometric measurements, and 24-h dietary recalls were conducted at baseline and after the intervention.
Results
After the intervention, significant decreases in the mean body weight, body mass index, body fat percentage, and waist circumference were observed. Furthermore, the consumption frequencies of multigrain rice and legumes significantly increased, whereas those of pork belly, instant noodles, processed meat, carbonated beverages, and fast food significantly decreased compared with those at baseline. The mean dietary intake of energy and most nutrients also decreased after the intervention. When the participants were categorized into three groups according to their engagement level, significant differences in anthropometric data, dietary behaviors, and energy intake were observed following the intervention, although there were no differences at baseline, indicating that higher engagement level led to greater improvements in weight loss and dietary behavior.
Conclusions
The intervention had positive effects on weight loss and dietary behavior changes, particularly among employees with higher engagement levels. These results indicate the importance of increasing the level of engagement in the intervention to enhance its effectiveness. The mhealth intervention is a promising model for health promotion for busy workers with limited time.

Citations

Citations to this article as recorded by

Improving the nutrition quotient and dietary self-efficacy through personalized goal setting and smartphone-based nutrition counseling among adults in their 20s and 30s
Dahyeon Kim, Dawon Park, Young-Hee Han, Taisun Hyun
Journal of Nutrition and Health.2023; 56(4): 419. CrossRef
Process evaluation of a mobile healthcare program among employees with overweight and obesity: a 12-week intervention study investigating the role of engagement
Imhuei Son, Jiyoun Hong, Young Hee Han, Bo Jeong Gong, Meng Yuan Zhang, Woori Na, Cheongmin Sohn, Taisun Hyun
Korean Journal of Community Nutrition.2023; 28(6): 466. CrossRef
Systematic Review on the Study of the Childhood and Adolescent Obesity in Korea: Dietary Risk Factors
Eun Jeong Heo, Jae Eun Shim, Eun Young Yoon
Korean Journal of Community Nutrition.2017; 22(3): 191. CrossRef

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[English]
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 J Community Nutr 2023;28(2):124-140. Published online April 30, 2023; DOI: https://doi.org/10.5720/kjcn.2023.28.2.124

Abstract PDF: Objectives
This study examined the changes in dietary habits, the prevalence of chronic diseases, and mental health problems in the regional areas of the Republic of Korea before and after the COVID-19 pandemic to provide evidence of the status of regional health inequalities.
Methods
This study analyzed Korean adults aged 19 or older who participated in the Korea Community Health Survey (n = 686,708) and Consumer Behavior Survey for Foods (n = 19,109) from 2018 to 2020. The participants were classified according to their residence area (Seoul metropolitan area, Metropolitan cities, Provinces); 2018-2019 were defined as before COVID-19, and 2020 as after COVID-19. The dietary behaviors, chronic diseases, and mental health problems were measured using a self-report questionnaire.
Results
After COVID-19, the eating-out usage rate in the Seoul metropolitan area and Provinces decreased compared to before COVID-19 (P < 0.001), and when responding that they eat out, the frequency of eating out with household members in the Seoul metropolitan area increased (P = 0.024). The deliveries/takeout usage rate in the Provinces decreased after COVID-19 compared to before (P < 0.001). After COVID-19, the prevalence of obesity decreased in all regions (P < 0.001), and the prevalence of hypertension increased significantly in the Provinces (P = 0.015). The prevalence of diabetes mellitus increased continuously before and after COVID-19 in all regions (P < 0.002). High-risk subjective stress levels increased significantly in the Seoul metropolitan area (P < 0.001), and sleep duration significantly increased in all regions (P < 0.001). Major depressive disorder was reduced significantly in Metropolitan cities (P = 0.042) and Provinces (P < 0.001).
Conclusions
After the COVID-19 pandemic, the prevalence of chronic diseases and mental health problems showed regional differences along with changes in dietary habits. It is necessary to reflect the regional differences in dietary habits in future policies resolving regional health inequalities.

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[Korean]
Association between eating habits, sweet taste assessment, and high-sugar food consumption among elementary school students in Daegu: a descriptive study: Min-Jung Kim, Eun-Kyung Shin, Yeon-Kyung Lee; Korean J Community Nutr 2023;28(2):104-113. Published online April 30, 2023; DOI: https://doi.org/10.5720/kjcn.2023.28.2.104

Abstract PDF: Objectives
The purpose of this study was to analyze high-sugar food consumption habits frequency among elementary school students, and their correlations with eating habits and sweet taste assessment.
Methods
The participants of the study were 164 elementary school students in Daegu, in the fifth or sixth grade, along with their parents. A questionnaire investigated eating habits, high-sugar food consumption habits and frequency, and sweet taste assessment.
Results
The average eating habits score for elementary school students was determined to be 71.7 out of 100. Students with higher eating habits scores had lower high-sugar food consumption habits and frequency compared to those with lower eating habits scores. Sweet taste assessment revealed that students who preferred less sweetness chose a 5% sugar concentration, those with a preference for normal sweetness chose a 10% sugar concentration, and those who preferred sweeter tastes chose a 20% sugar concentration. Sweet taste assessment showed that students who tended to prefer less sweetness had the highest eating habits scores and the lowest scores for high-sugar food consumption habits and frequency. In addition, eating habits scores were found to be negatively correlated with high-sugar food consumption habits, high-sugar food consumption frequency, and sweet taste assessment. The sweet taste assessment was positively correlated with high-sugar food consumption habits and frequency.
Conclusions
Our results indicate that students with good eating habits had more desirable overall sugar intake habits, and when the preference for sweetness was high, the frequency of high-sugar food consumption was also high. Our study highlights the importance of educating elementary school students and their parents about the harmful effects of excessive sugar consumption, as well as the benefits of adopting healthy eating habits and creating supportive environments.

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[Korean]
The association between nutrition label utilization and disease management education among hypertension or diabetes diagnosed in Korea using 2018 Community Health Survey: a cross-sectional study: Miran Jin, Jayeun Kim, Kyuhyun Yoon; Korean J Community Nutr 2023;28(1):38-47. Published online February 28, 2023; DOI: https://doi.org/10.5720/kjcn.2023.28.1.38

Abstract PDF

Objectives
This study examined the association between the experience of disease management education and the use of nutrition labels according to the sociodemographic characteristics and health behaviors of people diagnosed with hypertension and diabetes living in the community.
Methods
Among the participants from the Community Health Survey (2018), 74,283 individuals diagnosed with hypertension or diabetes were included in the study population. According to gender, this study evaluated nutrition label use by the experience of disease management education, individual sociodemographic characteristics, and health behavior. Finally, using multiple logistic regression analysis, the association between disease management education and nutrition labels was calculated using the odds ratio (OR) and 95% confidence interval (CI).
Results
Males (24.5%) experienced more disease management education than females (22.6%). In addition, younger age, higher education level, and higher equalized personal income experienced more disease management education (P < 0.001). The educational experience rate was higher in the male subjects who did not smoke or were involved in high-risk alcohol consumption (P < 0.001). In addition, the rate of disease management education experience was significantly higher for both men and women who exercised by walking (P < 0.001). The use of nutrition labels was higher in females (9.9%) than males (5.8%), and both males and females were significantly higher in young age, high education, high income, and professional and office positions (P < 0.001). The utilization rate of nutrition labels was high in non-smoking male subjects and high-risk-drinking female subjects. In addition, the utilization rate of nutrition labels was significantly higher in males and females who exercised by walking and those who experienced disease management education (P < 0.001). After adjusting for individual sociodemographic characteristics, health behavior, and disease management education, the use of nutrition labels was high among females (OR 3.19, 95% CI 2.85-3.58), high income (Q4; OR 1.62, 95% CI 1.41-1.87, Q5; OR 1.58, 95% CI 1.37-1.84) and highly educated (high school; OR 2.87, 95% CI 2.62-3.14, above college; OR 5.60, 95% CI 5.02-6.23) while it was low in the elderly (OR 0.43, 95% CI 0.40-0.47), and economically inactive (OR 0.86, 95% CI 0.76-0.96). The use of nutrition labels was high in non-smokers (OR 1.29, 95% CI 1.13-1.48), nonhigh-risk drinkers (OR 1.22, 95% CI 1.08-1.38), and subjects who exercised walking (OR 1.44, 95% CI 1.34-1.54). There was no difference in the utilization rate of nutrition labels according to obesity, and the utilization rate of nutrition labels was significantly higher in subjects who had experienced disease education (OR 1.34, 95% CI 1.24-1.44).
Conclusions
Education on the use of nutrition labels, which contributes to food selection for healthy eating, might be a tool for dietary management. Moreover, the utilization rate can be a good indicator for predicting the proportion of the population practicing the guide for disease management. Improving the utilization rate of nutrition labels through disease management education can be a useful intervention for people with chronic diseases who need healthy eating habits for disease management and preventing complications, particularly those diagnosed with hypertension and diabetes.

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Comparison of Health Status and Life Satisfaction According to Food Security in Single-Person Households of Elderly Population
Dong Hoon Jung, Jae Won Han, Wonha Kim, Hee-Sook Lim
Clinical Nutrition Research.2024; 13(1): 42. CrossRef
Factors Influencing the Dietary Behavior of Patients with Type 2 Diabetes Mellitus: A Cross-sectional Study
Sohyun Jin, Youngshin Song
Journal of Korean Academy of Fundamentals of Nursing.2024; 31(1): 80. CrossRef
An association between socioeconomic status and preventive screening for diabetic eye and kidney complications among individuals with type 2 diabetes
Changwoo Shon, Jongnam Hwang
Korean Journal of Health Education and Promotion.2023; 40(5): 27. CrossRef

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[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

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[Korean]
A Study on the Dietary Behavior of Korean Adults: Focus on Dietary Supplement Intake, Household Size, and COVID-19: Jinkyung Choi; Korean J Community Nutr 2022;27(6):468-479. Published online December 31, 2022; DOI: https://doi.org/10.5720/kjcn.2022.27.6.468

Abstract PDF

Objectives
This study investigates dietary supplement intakes by examining the characteristics of dietary and health-related behaviors. Data were obtained from the Korea National Health and Nutrition Examination Survey (KNHANES). Dietary and health-related behaviors were also examined before and after the occurrence of COVID-19 and household types (multi-members vs. single person).
Methods
Data used in this study were collected from the 2019-2020 KNHANES by including adults aged 19 to 64 years. Pregnant, lactating, and subjects consuming calories less than 500 and more than 5,000 were excluded. Differences in dietary and health-related behaviors before and after COVID-19, and between the two types of households were analyzed by Chi-square analyses using Rao-Scott. Logistic regression analyses were applied to determine which dietary and health-related behaviors affected the dietary supplement intakes. In addition, descriptive analysis was run for demographic characteristics.
Results
The dietary supplement intake rate differed significantly with respect to the gender, age, education, marital status, and household income. Dietary supplement intakes, frequency of eating out, obesity, and body weight changes were significantly different before and after COVID-19. In addition, meal evaluation, frequency of eating out, drinking, smoking, activity, subjective health evaluation, and body weight changes showed significant differences by household type. Attitude towards nutrition, activity, meal evaluation, obesity, and smoking were factors that affected the intake of dietary supplements.
Conclusions
While increased intake of dietary supplements is a prevalent phenomenon, this intake needs to be monitored and studied closely, considering the sociodemographic characteristics and dietary and health-related behaviors. Furthermore, the dietary supplement intake trend after COVID-19 needs to be studied along with food intake.

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Comparison of Eating Habits and Behaviors of Young Single-Person Households based on Food-Related Lifestyle
Dokyung Kim, Sim-Yeol Lee
Korean Journal of Health Promotion.2023; 23(3): 117. CrossRef
Effect of Dietary Supplements on Vitamin and Mineral Intake Among Koreans: Data From the 2018-2020 Korea National Health and Nutrition Examination Survey
Moon Yeong Hwang, Jiyoun Hong
Food Supplements and Biomaterials for Health.2023;[Epub] 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

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[Korean]
Effect of Type of Nutrition Labeling on the Healthfulness Evaluation and Purchase Intentions of Home Meal Replacements (HMR) in South Korea: Mee-Young Joe; Korean J Community Nutr 2022;27(5):387-396. Published online October 31, 2022; DOI: https://doi.org/10.5720/kjcn.2022.27.5.387

Abstract PDF

Objectives
The purpose of this study was to examine the effects of the types of nutrition labeling on the processing fluency, health evaluation and purchase intentions of home meal replacements.
Methods
This online experimental study was conducted from December 29 to 31, 2019 and included 134 participants. The research design was 2 (Objective nutrition labeling: present vs. absent) X 2 (Evaluative nutrition labeling: present vs. absent) and each participant was randomly assigned to one of four groups. As stimuli, five types of ready-to-heat foods sold in the market were used.
Results
Processing fluency (4.91 points) and purchase intention (4.13 points) were significantly high when both evaluative nutrition labeling and objective nutrition labeling were presented, and healthfulness evaluation (4.47 points) was significantly high when only evaluative nutrition labeling was presented. All three variables were measured to be high when evaluative nutrition labeling was presented. The evaluative nutrition labeling that visually represented nutritional values was found to be more effective for processing fluency, healthfulness evaluation, and purchase intention than the objective nutrition labeling representing the nutritional value of the product in numbers and proportions.
Conclusions
These results show that it is necessary to develop various types of evaluative nutrition labeling to enable consumers to choose and purchase healthful home meal replacements. Also, consumer education and public campaigns are needed to encourage consumers to select healthier home-cooked meals using nutrition labeling.

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Analysis of Dietary Behavior and Sustainable Dietary Life Competency in Families According to Parents’ Dietary Lifestyle: Using the 2021 Korea Consumer Behavior Survey for Food
Sun A Choi, Jeong Ok Rho
Journal of the Korean Society of Food Science and Nutrition.2023; 52(11): 1179. CrossRef
Study on the consumption practices and Importance-Satisfaction Analysis of meal-kit selection attributes among adults in their 20s and 30s
Se-Eun Kim, Hyun-Joo Bae
Journal of Nutrition and Health.2023; 56(3): 315. CrossRef

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[Korean]
Association between Sarcopenia and Energy and Protein Intakes in Community-dwelling Elderly: Woori Na, Dayoung Oh, Seohyeon Hwang, Bonghee Chung, Cheongmin Sohn; Korean J Community Nutr 2022;27(4):286-295. Published online August 31, 2022; DOI: https://doi.org/10.5720/kjcn.2022.27.4.286

Abstract PDF

Objectives
Sarcopenia is one of the most representative factors of senescence, and nutritional status is known to affect sarcopenia. This study was performed to analyze the relationships between energy and protein intake and sarcopenia.
Methods
The study subjects were 3,236 individuals aged ≥ 65 that participated in the Korea National Health and Nutrition Examination Survey (KNHANES) 2008 ~ 2011. General characteristics and anthropometric and 24-hour dietary recall data were analyzed. Sarcopenia was diagnosed using a formula based on appendicular skeletal muscle mass (ASM) and body weight. Logistic regression was performed to determine relationships between sarcopenia risk and energy and protein intakes.
Results
For energy intake, the odds ratio (OR) of sarcopenia in women was significantly higher those with the lowest intake [OR = 1.680, 95% confidence interval (CI) = 1.213-2.326] than those with the highest intake (P for trend = 0.001). Regarding protein intake per kg of body weight, the odds ratio of sarcopenia was significantly higher for those that consumed < 0.8 g/kg of protein daily than those that consumed > 1.2g/kg for men (OR = 2.459, 95% CI = 1.481-4.085) and women (OR = 2.178, 95% CI = 1.423-3.334).
Conclusions
This study shows a link between sarcopenia and energy and protein intake levels and suggests that energy and protein consumption be promoted among older adults to prevent sarcopenia.

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Muscle Mass Changes After Daily Consumption of Protein Mix Supplemented With Vitamin D in Adults Over 50 Years of Age: Subgroup Analysis According to the Serum 25(OH)D Levels of a Randomized Controlled Trial
Yeji Kang, Namhee Kim, Yunhwan Lee, Xiangxue An, Yoon-Sok Chung, Yoo Kyoung Park
Clinical Nutrition Research.2023; 12(3): 184. CrossRef

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[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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Consumption of protein supplements/protein-fortified foods among young adults in Jeju
Hyoju Lee, Youjeong Jang, Sumin Kim, Kyungho Ha
Journal of Nutrition and Health.2024; 57(2): 261. CrossRef
Prediction model of weight control experience in men with obesity in their 30 s and 40 s using decision tree analysis
Myeunghee Han
Scientific Reports.2024;[Epub] CrossRef
A Study on Diet Perceptions and Trends Before and After COVID-19 Using Big Data Analysis
Eunjung Lee, Hyosun Jung, Jina Jang
Journal of the Korean Society of Food Science and Nutrition.2023; 52(6): 659. CrossRef
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

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[Korean]
Dietary Factors Associated with Metabolic Syndrome Status in Korean Menopausal Women: Based on the 2016 ~ 2017 Korea National Health and Nutrition Examination Survey: Pil-Sook Park, Mei-Sheng Li, Mi-Yeon Park; Korean J Community Nutr 2021;26(6):482-494. Published online December 31, 2021; DOI: https://doi.org/10.5720/kjcn.2021.26.6.482

Abstract PDF

Objectives
This study evaluated dietary behavior and nutritional status according to the metabolic syndrome status in Korean menopausal women.
Methods
The subjects were 1,392 menopausal women aged 50 to 64 who took part in the Korea National Health and Nutrition Examination Survey of 2016 and 2017. Subjects were classified into normal (NOR) group, pre-metabolic syndrome (Pre-MetS) group, and metabolic syndrome (MetS) groups according to the number of metabolic syndrome risk factors present.
Results
The overall prevalence of metabolic syndrome was 33.7%. Using the NOR group as a reference, the odds of belonging to the MetS group in Model 1 adjusted for age were higher at 53% (OR = 1.53, 95% CI:1.011-2.307) for ‘not used’ subjects compared to ‘used’ subjects of the nutrition labeling system. Using the NOR group as a reference, every 1g increase in the intake of monounsaturated fatty acids (MUFA) and polyunsaturated fatty acids (PUFA) decreased the odds of belonging to the MetS group in Model 1 adjusted for age by 3% (MUFA, OR = 0.97, 95% CI:0.946-0.991; PUFA, OR = 0.97, 95% CI:0.942-0.993).
Conclusions
These results suggest that to reduce the number of risk factors of metabolic syndrome in menopausal women, nutritional education should emphasize the adequate intake of riboflavin, unsaturated fatty acids, protein, and calcium, and also encourage the recognition and use of nutritional labeling. Results of this study are expected to be utilized as basic data for the health management of menopausal women.

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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
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 Journal of Community Nutrition.2022; 27(3): 223. CrossRef

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[Korean]
Association between Eating Alone Patterns and Mental Health Conditions by Region among Korean Adults: Kyung Won Lee, Dayeon Shin; Korean J Community Nutr 2021;26(6):441-454. Published online December 31, 2021; DOI: https://doi.org/10.5720/kjcn.2021.26.6.441

Abstract PDF

Objectives
This study investigated the association between the frequency and pattern of eating alone and the mental health status according to region in Korean adults.
Methods
The data of 10,040 Korean adults aged ≥ 19 years from the Korea National Health and Nutrition Examination Survey (KNHANES) 2017 and 2019 were used. Participants were divided into 4 groups based on their frequency of eating alone: none (all meals together), 1, 2, and 3 meals/day alone. The regions were divided into urban and rural areas. Mental health status was assessed by stress recognition, depressive symptoms, and suicidal ideation. Multivariable logistic regressions were conducted to estimate the adjusted odds ratios (AORs) with 95% confidence intervals (CIs) on the association of the frequency and pattern of eating alone with poor mental health after controlling for covariates.
Results
Among Korean adults, 74.1% ate more than one meal a day alone. Individuals having 3 meals a day alone tended to be less educated, single, single person households, or living in urban areas (all P < 0.05). In rural areas, those having 3 meals/ day alone had higher odds of stress recognition (AOR: 1.55, 95% CI: 1.02-2.35) than those having all meals together. In urban areas, individuals eating alone 3 times/day had higher odds of stress recognition (AOR: 1.60, 95% CI: 1.31-1.96), depressive symptoms (AOR: 1.61, 95% CI: 1.23-2.12), and suicidal ideation (AOR: 2.14, 95% CI: 1.42-3.22) compared to those having all meals together. Urban residents having dinner alone had higher odds of depressive symptoms (AOR: 1.29, 95% CI: 1.05-1.58) and suicidal ideation (AOR: 1.66, 95% CI: 1.19-2.33) than those having dinner with others.
Conclusions
Our findings showed that the frequency and patterns of eating alone were differentially associated with increased odds of poor mental health according to region of residence. Nutrition education is needed for those frequently eating alone, particularly those living in urban areas, to highlight the advantages of eating together and to ensure that they have balanced and healthy meals even if they eat alone.

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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
How Does the Frequency of Eating-Alone among Older People in Korea Affect Their Health and Dietary Behavior?
Yongseok Kwon, Kyung Hee Hong, Yoo-Kyung Park, Sohye Kim
Nutrients.2023; 15(9): 2085. CrossRef
Impact assessment of a primary care physician counseling program for youth population
Yun-Su Kim, Shin-Ae Kim
Medicine.2022; 101(46): e31916. CrossRef

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[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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[Korean]
Nutritional Status according to the Frailty Status of the Elderly at Home in Seo-gu, Gwangju, Korea: Ye Eun Kim, Young-Ran Heo; Korean J Community Nutr 2021;26(5):382-395. Published online October 31, 2021; DOI: https://doi.org/10.5720/kjcn.2021.26.5.382

Abstract PDF

Objectives
This study examined the nutritional status according to frailty status in the elderly at home. Methods: The participants were a total of 76 elderly at home living in Seo-gu, Gwangju, Korea. The nutritional status and frailty status were analyzed using the Nutrition Quotient for Elderly (NQ-E) and the Korean version of the Fatigue, Resistance, Ambulation, Illnesses and Loss of weight Scale (K-FRAIL), respectively. Results: The distribution of frailty status was robust (17.1%), pre-frailty (38.2%) and frailty (44.7%), and its distribution was significantly different in genders, age groups and the number of medications. The mean NQ-E score was 47.0 for total subjects, indicating a low grade. The scores of balance, diversity and dietary behavior factors were within the low grade, while the score of the moderation factor was within the medium-high grade. According to the frailty status, pre-frailty and frailty showed significantly higher scores for sugar-added beverages intake in the moderation constructs than robust. Robust showed significantly higher scores for the exercise hours and perception level for one’s health than pre-frailty and frailty. Conclusions: These results suggest that nutrition status is associated with frailty status. Regular nutrition education and visiting nutrition service should be established to improve the balance and diversity of food intake and improve the dietary behavior of the elderly at home.

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The Dietary Status among Mild Dementia Elderly Using the Nutrition Quotient for Elderly (NQ-E) in Daegu
Hyun-Kyoung Bang, Mi-Ok Kim
Journal of the East Asian Society of Dietary Life.2023; 33(4): 343. CrossRef
Evaluation of dietary quality using elderly nutrition quotient depending on the consumption of healthy functional foods
Jieun Lee, Hyo-Jeong Hwang, Hye-Young Kim, Jung-Sug Lee
Journal of Nutrition and Health.2023; 56(5): 483. CrossRef

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[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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[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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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
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]
Evaluation of Dietary Habits and Health-Related Factors According to the Employment in Women in Early Adulthood - Based on the 2016~2019 Korea National Health and Nutrition Examination Survey: Yun-Jung Bae; Korean J Community Nutr 2021;26(4):249-258. Published online August 31, 2021; DOI: https://doi.org/10.5720/kjcn.2021.26.4.249

Abstract PDF

Objectives
This study aimed to compare the factors of dietary and health behavior according to the employment in women in early adulthood and to analyze their relationship. Methods: In this study, adult women aged 20~29 who participated in the Korea National Health and Nutrition Examination Survey (KNHANES) 2016~2019 were classified into two groups depending on their permanent worker status, namely tenured employees (n = 254) and temporary employees (n = 377). Dietary habits (prevalence of skipping meals, food nutrition label use, etc.), nutrient intake, and metabolic syndrome factors were analyzed. Results: The tenured employees' group showed a significantly lower proportion of subjects who skipped breakfast (P = 0.0254) and significantly higher daily energy intake (P = 0.0264) than the temporary employees' group. However, there were no significant differences in the intake of energy nutrients and most of the micronutrients per 1,000 kcal of energy intake between the two groups. The proportion of subjects who consumed energy nutrients under 75% of the estimated energy requirement (EER) was 38.11% in the tenured employees' group, which was significantly lower than the 48.30% in the temporary employees' group (P = 0.0159). In economically active women aged 19~29 years, the odds ratio of low HDL-cholesterolemia prevalence was 1.80 times higher (95% CI, 1.06-3.06) in the temporary employees' group compared to that in the tenured employees' group after adjustment for confounding factors (P = 0.0295). Conclusions: In conclusion, among Korean adult women in their twenties, temporary employees showed inappropriate eating habits such as skipping breakfast, and had abnormal blood lipid levels.

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Temporary Employment Is Associated with Poor Dietary Quality in Middle-Aged Workers in Korea: A Nationwide Study Based on the Korean Healthy Eating Index, 2013–2021
Seong-Uk Baek, Myeong-Hun Lim, Yu-Min Lee, Jong-Uk Won, Jin-Ha Yoon
Nutrients.2024; 16(10): 1482. CrossRef

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[Korean]
Can Dining Alone Lead to Healthier Menu Item Decisions than Dining with Others? The Roles of Consumption Orientation and Menu Nutrition Information: EunSol Her, Carl Behnke, Barbara Almanza; Korean J Community Nutr 2021;26(3):155-166. Published online June 30, 2021; DOI: https://doi.org/10.5720/kjcn.2021.26.3.155

Abstract PDF: Objectives
Driven by a growth of single-person households and individualized lifestyles, solo dining in restaurants is an increasingly recognizable trend. However, a research gap exists in the comparison of solo and group diners’ menu-decision making processes. Based on the self-control dilemma and the temporal construal theory as a theoretical framework, this study compared the ordering intentions of solo vs. group diners with healthy vs. indulgent (less healthy) entrées. The mediating role of consumption orientation and the moderating role of amount of menu nutrition information were further explored to understand the mechanism and a boundary condition.
Methods
A scenario-based online survey was developed using a 2 (dining social context: solo vs. with others) × 3 (amount of menu nutrition information: no nutrition information vs. calories vs. calories/fat/sodium), between-subjects, experimental design. Consumers’ level of nutrition involvement was controlled. A nationwide survey data (n = 224) were collected from a crowdsourcing platform in the U.S. Data were analyzed using multivariate analysis of covariance, independent t-test, univariate analysis of covariance, and moderated mediation analyses.
Results
Findings reveal that solo (vs. group) diners have less (vs. more) intentions to order indulgent menu items due to a more utilitarian (vs. more hedonic) consumption orientation in restaurant dining. Findings also show that solo (vs. group) diners have more (vs. less) intentions to order healthy menu items when the restaurant menu presented nutrition information including calories, fat, and sodium.
Conclusions
The findings contribute to the literature of foodservice management, healthy eating, and consumer behavior by revealing a mechanism and an external stimuli of solo vs. group diners’ healthy menu-decision making process in restaurants. Furthermore, the findings provide restauranteurs and health professionals with insights into the positive and negative impacts of menu nutrition labelling on consumers’ menu-decisions.

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[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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Development of an evaluation tool for dietary guideline adherence in the elderly
Young-Suk Lim, Ji Soo Oh, Hye-Young Kim
Journal of Nutrition and Health.2024; 57(1): 1. CrossRef
The development, psychometric properties and refinement of a food literacy scale for specific and general application
Hennie Fisher, Marietjie Potgieter
International Journal of Gastronomy and Food Science.2024; 35: 100862. CrossRef
Status of Food Literacy and Association with the Nutrition Quotient among Korean Adults
Geum-Bi Ryu, Young-Ran Heo
Human Ecology Research.2024; 62(3): 399. CrossRef
Who has a high level of food literacy, and who does not?: a qualitative study of college students in South Korea
Hyelim Yoo, Eunbin Jo, Hyeongyeong Lee, Eunji Ko, Eunjin Jang, Jiwon Sim, Sohyun Park
Nutrition Research and Practice.2023; 17(6): 1155. CrossRef
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 Journal of Community Nutrition.2023; 28(6): 495. CrossRef
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Seulgi Lee, Sohyun Park, Kirang Kim
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Hala Mohsen, Yonna Sacre, Lara Hanna-Wakim, Maha Hoteit
International Journal of Environmental Research and Public Health.2022; 19(16): 10190. CrossRef
Development of a Food Literacy Assessment Tool for Healthy, Joyful, and Sustainable Diet in South Korea
Hyelim Yoo, Eunbin Jo, Hyeongyeong Lee, Sohyun Park
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[English]
Use of Weight-control or Health Functional Foods, Associated Weight-control Behavior and Perception among University Students in Cheongju: Gayong Kim, Munkyong Pae; Korean J Community Nutr 2021;26(1):23-36. Published online February 28, 2021; DOI: https://doi.org/10.5720/kjcn.2021.26.1.23

Abstract PDF

Objectives
This study sought to assess the prevalence and duration of weight-control or health functional food use, associated weight-control behavior, perception, and knowledge among university students. Methods: The subjects were 442 university students in Cheonju, Korea, and data was collected by a self-administered questionnaire. Both X² and t-tests were conducted for categorical and mean comparisons. Results: An estimated 62.7% (female 69.0%, male 54.8%) had ever attempted weightcontrol. Among these, an estimated 59.2% of females and 38.9% of males had used weight-control or health functional foods with significant gender difference. The weightcontrol foods commonly used included chicken breast, protein powder, low-fat milk and soymilk, and meal replacement drinks, while garcinia cambogia extract and green tea extract were frequently used as health functional foods. One of 10 (10.3%) consumers of weight-control foods reported ≥ 7 months use, with less frequent long-term consumption of health functional foods (4.2%). The average degree of satisfaction was 3.24 ± 0.92 for weight-control foods and 2.72 ± 0.97 for health functional foods on a 5-point scale, meaning ‘slightly satisfied’ and ‘slightly dissatisfied’, respectively. Females or students with an experience of weight-control reported poorer perceptions of their health and body image as well as a higher need for weight control. Besides, both male and female subjects felt a high need for correct information regarding weight-control methods. Conclusions: Our results provide a better understanding of the characteristics associated with the use of weight-control or health functional foods among university students and will be useful in developing a nutrition education program by incorporating correct body image, knowledge, and practical yet desirable practices for weight control.

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Consumption of protein supplements/protein-fortified foods among young adults in Jeju
Hyoju Lee, Youjeong Jang, Sumin Kim, Kyungho Ha
Journal of Nutrition and Health.2024; 57(2): 261. CrossRef
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[English]
E-commerce Food Purchases by Adult Women according to their Household Types: Yu-Jin Park, Yu-Mi Kim, Mi-Kyeong Choi; Korean J Community Nutr 2020;25(6):464-473. Published online December 31, 2020; DOI: https://doi.org/10.5720/kjcn.2020.25.6.464

Abstract PDF

Objectives
The purpose of this study was to compare and analyze e-commerce food purchase behavior and the perceptions of adult women according to their household types. Methods: The e-commerce food purchases of 318 adult women were surveyed and analyzed according to their household types (one-person or couple household (OCH); a household with children (HC); a household with parents (HP)). Results: The total amount of food purchases over 6 months through e-commerce according to household types was in the descending order of OCH (60.3%), HC (57%), and HP (55.1%) thus showing a significant difference (P < 0.05) in behavior between household types. The reasons for purchasing food through e-commerce included: a lower price than offline (30.8%), convenient delivery and transportation (30.2%), and food diversity (21.1%). When purchasing food online, the most important factor was price and quality, followed by quick and accurate delivery for OCH, exact information given about the product for HC, and recommendation from other consumers for HP (P < 0.01). The main foods purchased through e-commerce were coffee, tea (42.1%), instant and frozen foods (39.9%), water, beverages, dairy products (37.7%), snacks, bread, rice cakes (31.5%), and functional foods (27.4%). The percentage of respondents who were very satisfied or satisfied with their ecommerce food purchases was HP (84.1%), OCH (69.9%), and HC (65.6%) in that order (P < 0.05), and 96.5% of all subjects stated that they would be willing to purchase food through e-commerce in the future. The advantages of purchasing food through e-commerce were seen to be the highest in order and payment convenience with 4.1 points out of 5, followed by low price (4.0), variety of products (3.9), and ease of food purchase (3.9).Among the disadvantages listed, concerns about product damage and deterioration during delivery and differences between the displayed product and the delivered product were the highest with 3.7 points. Conclusions: The characteristics and perceptions of female consumers according to household types are important factors in enhancing the reach of e-commerce, and in preparing guidelines for food selection through e-commerce.

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Effects of the Perceived Quality and Attitude on Satisfaction in Online Fresh Food Shopping
Jin-Yi Jeong, Yoon-Ji Choi, Hye-Sung Chae, Jung Shin Choi, Joo-Lee Son
Journal of the East Asian Society of Dietary Life.2022; 32(3): 202. CrossRef
Examination the Factors that Influence Online Food Purchase Intention : An Empirical Study Based on the Technology Acceptance Model (TAM)
Jin-Yi Jeong, Yoon-Ji Choi, Hye-Sung Chae, Jung Shin Choi, Joo-Lee Son
Journal of the East Asian Society of Dietary Life.2021; 31(5): 320. CrossRef

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[English]
Current Status of Sanitary and Nutritional Food Service in Elderly Day Care Center: Jeong hyeon Woo, Yoo Kyoung Park, Mi-Hyun Kim, Soo-Kyung Lee, Kyung hee Song, Hye-Kyeong Kim; Korean J Community Nutr 2020;25(5):374-385. Published online October 31, 2020; DOI: https://doi.org/10.5720/kjcn.2020.25.5.374

Abstract PDF

Objectives
This study was conducted to examine the status of foodservice management, with special interest on sanitary and nutritional food service in elderly day care centers. Methods A total of 79 employees who managed foodservice facilities in elderly day care centers were included in the survey. The contents of the questionnaire consisted of general characteristics, importance and performance of sanitary and nutrition management, the reasons for poor performance, factors necessary for improvement, and the employee's demand for support. Data analysis was conducted using the SPSS v25.0. Results Sanitary management showed an average importance score of 4.84 ± 0.40 and a performance score of 4.70 ± 0.61 (t-value: 8.260). The item with the lowest performance score was personal sanitary management (4.58 ± 0.71). In nutrition management, the average importance score was 4.52 ± 0.68, and the performance score was 4.20 ± 1.00 (t-value: 9.609). There were significant differences between the average score of importance and performance in both areas. As a result of an Importance-Performance Analysis, items that were recognized as important but had relatively low performance was “personal hygiene”, “ventilation” and “food storage”. Also in the nutritional management area, “menu planning for disease management” and “checking the saltiness in the soup” etc. had very low performance with low importance recognition. The items shown in the “low priority” quadrant were those that required professional management skills. In the areas that demanded support in foodservice management, education about sanitary and safe institutional food service had the highest score (4.42 ± 0.74), and all other items showed a demand of 4 points or more. Conclusions Foodservice managers recognize the importance of foodservice facility management but performance is relatively low. Institutional support is, therefore, needed to improve performance. For items with low importance, it seems necessary to improve awareness of the necessity of these items and to provide education in this regard. To gradually improve foodservice management, continuous provision of education and training in these areas are of great importance.

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Development of Protein Enhanced Diet for Socially Vulnerable Elderly
Jihye Hong, Hyung-Geun Jeon, Seulgi Kim, Gitae Park
Journal of the East Asian Society of Dietary Life.2024; 34(1): 39. CrossRef
Snack Provision Practice in Long-Term Care Hospitals and Facilities in Korea
Dayeong Yeo, Hae Jin Kang, Hyejin Ahn, Yoo Kyoung Park
Clinical Nutrition Research.2024; 13(2): 108. CrossRef
Sanitation Management Performance According to the Characteristics of Coffee Franchise Shops and Sanitation Knowledge According to the Characteristics of Employees
Suk-Kyoung Gu, Sunyoon Jung, Inyong Kim, Yoonhwa Jeong
Journal of the Korean Society of Food Science and Nutrition.2021; 50(11): 1248. CrossRef
Analysis of Awareness, Knowledge, and Behavior about Food Hygiene·Safety Among the elderly
Mi Sook Lee, Sim-Yeol Lee
Korean Journal of Community Nutrition.2021; 26(3): 200. CrossRef

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[English]
Evaluation of Nutritional Status of Vitamins and Minerals According to Consumption of Dietary Supplements in Korean Adults and the Elderly: Report Based on 2017 Korea National Health and Nutrition Examination Survey data: Ji-Myung Kim; Korean J Community Nutr 2020;25(4):329-339. Published online August 31, 2020; DOI: https://doi.org/10.5720/kjcn.2020.25.4.329

Abstract PDF

Objective
This study was undertaken to evaluate the intake of vitamins and minerals from dietary supplements (DSs) in Korean adults and elderly.
Methods
Data for this study was generated from the 2017 Korea National Health and Nutrition Examination Survey (KNHANES). We analyzed 4,204 individuals aged 19 years and older (2,579 users and 1,625 non-users). The survey included 24-h recall questions on food and DS intakes, as well as questions on DS use over the past year. The nutrient DSs evaluated were calcium, phosphorus, iron, vitamin A, thiamin, riboflavin, niacin, and vitamin C. Total nutrient intakes were obtained by combining nutrient intakes of foods and DSs consumed by each subject.
Results
Most micronutrient intakes from food (except for thiamin) in adult users, and the four micronutrient intakes (iron, vitamin A, vitamin B₂ and vitamin C) in elderly users, were significantly higher than values obtained in non-users. For total intake of nutrients and DSs, both adult and elderly users had a significantly higher intake than non-users. While proportions below Estimated Average Requirements for all micronutrients by adding respective DSs in users were significantly reduced in adults and elderly as compared to non-users, the proportions of above Tolerable Upper Intake Levels for calcium and vitamin A in adults, and vitamin A in elderly, were significantly increased. In the total subjects examined, consumption of DSs was associated with lower odds ratios of undernutrition of micronutrients, and with higher odds ratios of overnutrition of calcium, iron, and vitamin A, as compared to non-users of DSs.
Conclusions
Although DSs consumption by adults and the elderly improves the micronutrient status, it also increases the risk of excessive intake of certain vitamins and minerals.

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Effect of Dietary Supplements on Vitamin and Mineral Intake Among Koreans: Data From the 2018-2020 Korea National Health and Nutrition Examination Survey
Moon Yeong Hwang, Jiyoun Hong
Food Supplements and Biomaterials for Health.2023;[Epub] CrossRef
Estimated dietary vitamin D intake and major vitamin D food sources of Koreans: based on the Korea National Health and Nutrition Examination Survey 2016–2019
Ki Nam Kim, Jung-Sug Lee, Jee-Seon Shim, Mi Ock Yoon, Hyun Sook Lee
Nutrition Research and Practice.2023; 17(3): 451. CrossRef
A Study on the Dietary Behavior of Korean Adults: Focus on Dietary Supplement Intake, Household Size, and COVID-19
Jinkyung Choi
Korean Journal of Community Nutrition.2022; 27(6): 468. CrossRef

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[English]
Qualitative Study of Compliance with Nutritional Management in Colorectal Cancer Patient Undergoing Chemotherapy: Heejung Park, Hyonson Kil, Wookyoun Cho; Korean J Community Nutr 2020;25(4):303-316. Published online August 31, 2020; DOI: https://doi.org/10.5720/kjcn.2020.25.4.303

Abstract PDF

Objective
The nutritional status of cancer patients undergoing chemotherapy is closely related to the compliance of nutrition education. However, as chemotherapy is conducted repeatedly, compliance with nutrition management is lowered, leading to malnutrition. Malnutrition is related directly to the quality of life after surgery in cancer patients. Therefore, this study examined the factors related to compliance with nutrition management during chemotherapy.
Methods
In this study, five subjects with colorectal cancer undergoing adjuvant chemotherapy were interviewed in-depth using the Giorgi study method. The contents of the nutrition education visits and in-depth interviews were transcribed in the language of the subject after recording, and the appropriateness of the data was improved by reflecting the subject’s actions and facial expressions.
Results
After conducting the in-depth interviews for each subject, the experience of the subject’s diet and adjuvant chemotherapy was drawn into two domains, six elements, and 26 sub-elements. In the cognitive domain, the patients experienced physical and psychological changes, and the need for nutrition management was recognized by analyzing the dietary causes of the diseases. In the domain of practice, a knowing-doing gap was formed, unlike the patient’s will. Factors that inhibited compliance with nutritional management included digestive problems, sensory changes, loss of appetite, and social interaction stress.
Conclusions
Dietary management is very important for patients receiving periodic anticancer therapy, and step-by-step training and personal monitoring based on the chemotherapy order is necessary to maintain the patient’s will and social and environmental support.

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Effects of Continuous Nutrition Care on Nutritional Status and Dietary Habits of Patients With Colorectal Cancer Receiving Adjuvant Chemotherapy After Surgery
Jina Son, Ha I Kang, Eun young Jung, Hae won Ryu, Kyung-Ha Lee
Clinical Nutrition Research.2023; 12(2): 99. CrossRef

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[English]
Evaluation of Nutritional Content in Convenience Store Lunchboxes by Meal Type, Price, and Store Brand: Jin-Seon Park, Young-Hee Han, Taisun Hyun; Korean J Community Nutr 2020;25(4):280-290. Published online August 31, 2020; DOI: https://doi.org/10.5720/kjcn.2020.25.4.280

Abstract PDF

Objective
This study investigated the menu and nutritional contents of convenience store lunchboxes, and evaluated the nutritional content by meal type, price, and store brand.
Methods
In September 2019, 93 convenience store lunchboxes from the top five franchise stores were purchased. Relevant information on price, food weight, food ingredients, cooking methods, and nutrition labeling were subsequently collected. Nutritional content was evaluated based on the daily value (DV) and Index of Nutritional Quality (INQ), and energy contribution of carbohydrate, protein, fat, saturated fat and sugar was compared with the recommended range.
Results
Most lunchboxes included the food groups; grains/starches, meats/fish/eggs/ legumes, and vegetables. However, none provided fruits, and only a few lunchboxes provided milk/milk products. Stir-frying, deep-frying, and pan-frying were the most frequent methods of cooking. The average energy content of the lunchboxes was 736.6 kcal, whereas the average contents of protein, fat and saturated fat were higher than 40% of the DV, and sodium content was 66.8% of the DV. The contents of most nutrients in traditional type lunchboxes were higher, as compared to nutrients in onedish type lunchboxes. Considering pricing of lunchboxes, protein and sodium contents were higher in the higher-priced lunchboxes as compared to lower-priced lunchboxes, but there were no differences in the INQs. The contents of energy, protein, fat, saturated fat, and cholesterol significantly differed by brand.
Conclusions
Our results indicate that convenience store lunchboxes contain high levels of protein, fat, saturated fat, and sodium. The nutritional contents differed by meal type, price, and store brand, and higher price did not imply higher nutritional quality. We propose the need to educate consumers to check nutrition labels and purchase appropriate lunchboxes. Manufacturers also need to make efforts to reduce the amounts of fat, saturated fat, and sodium, and not provide protein in excess.

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Evaluation of Nutritional Quality of Convenience Store Meal Boxes according to Store Company and Meal Price
Changgyu Cho, Youngmin Nam, Hye-Jong Yoo
Korean Journal of Community Nutrition.2022; 27(2): 105. CrossRef
Factors Influencing Convenience Food Choices based on the Health Consciousness of Chinese Students in South Korea
SongLin Bai, Youngmi Lee, Kyounghee Song, Yujin Lee
Journal of the East Asian Society of Dietary Life.2022; 32(3): 169. CrossRef
Studies of Selection Attributes for Lunch Boxes (Dosirak) Using Conjoint Analysis among Single Men
A Reum Han, Sung Suk Chung, Jeong Ok Rho
Journal of the Korean Society of Food Science and Nutrition.2021; 50(8): 884. CrossRef

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