Korean Journal of Community Nutrition

[English]
Relationship of sodium index with the obesity indicators of university students in Daegu, South Korea: a cross-sectional study: Young-Won Jang, Jian Ma, Yeon-Kyung Lee; Korean J Community Nutr 2024;29(3):189-198. Published online June 30, 2024; DOI: https://doi.org/10.5720/kjcn.2024.29.3.189

Abstract PDF PubReader ePub: Objectives
The sodium index is an index that converts the estimated sodium intake calculated using a verified and reliable sodium estimation formula. This study aimed to determine the relationship between the sodium index and obesity indicators and the potential impact of excessive sodium consumption on obesity.
Methods
Obesity indicators, such as body mass index (BMI), body fat percentage, waist-to-hip ratio (WHR), and visceral fat levels, were analyzed in 120 university students (60 men and 60 women). The sodium index was calculated by indexing the estimated sodium intake according to age, sex, BMI, salt-eating habits, and salt-eating behaviors. The relationship between sodium index and obesity indicators was analyzed using multiple logistic regression.
Results
The estimated sodium intake was 3,907.1 mg, with 76.7% of the participants categorized under the “careful” level of sodium index and 10.8% under the “moderate” level. As the sodium index increased, the BMI, body fat percentage, WHR, and visceral fat levels significantly increased. All obesity indicators significantly increased in patients with a “severe” sodium index than in those with a “moderate” sodium index. In addition, a strong positive correlation was identified between obesity indicators and sodium index. When the “severe” sodium index was compared with the “moderate” sodium index, the risk of obesity based on body fat percentage increased by 2.181 times (95% confidence interval [CI], 1.526–3.118), while the risk of obesity based on visceral fat level increased by 4.073 times (95% CI, 2.097–7.911).
Conclusions
Our findings suggest a correlation between excessive sodium intake and obesity. Moreover, the sodium index can be used to determine sodium intake.

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[Korean]
Correlation between adolescents’ dietary safety management competency and value recognition, efficacy, and competency of convergence using dietary area: a descriptive study: Yunhwa Kim, Yeon-Kyung Lee; Korean J Community Nutr 2023;28(4):317-328. Published online August 31, 2023; DOI: https://doi.org/10.5720/kjcn.2023.28.4.317

Abstract PDF: Objectives
This study aimed to investigate the correlation between adolescents’ dietary safety management competency, value recognition, efficacy, and competency of convergence using the dietary area (CUDA).
Methods
Data were collected from 480 middle and high school students in Daegu, Gyeongbuk and Seoul, Gyeonggi using a self-administered five-point Likert scale questionnaire from May to July 2021. A questionnaire was used to investigate dietary safety management competency, awareness of convergence, recognition of the benefits, efficacy, and competency of CUDA.
Results
We conducted factor, reliability, correlation, and regression analyses using SPSS 25. The average scores for each factor were: dietary significance (3.68); dietary safety management knowledge (3.34); food selection and cooking (3.72); nutrition management (3.38); weight management (3.28); risk dietary management (3.13); CUDA interest (2.98); convergence necessity (3.50); benefits in specialized areas (3.31); benefits in everyday life (3.48); efficacy of science and technology convergence (3.35); convergence efficacy with humanities, social science, and arts (3.31); and CUDA competency (3.41). The score for interest in CUDA was lower than that for the recognition of CUDA benefits. Significant positive correlations were observed between all factors except between risk dietary management and both nutrition and weight management (P < 0.01). Interest in CUDA and recognition of the need for convergence exhibited a positive and significant effect on all factors of the perception of CUDA benefits and efficacy. The subgroup factors of dietary safety management competency and the recognition of CUDA had a positive effect on the CUDA competency (P < 0.001, R ² = 0.58).
Conclusions
Strengthening dietary safety management competency and increasing the awareness of CUDA can enhance adolescents’ convergence competency. Therefore, CUDA and targeted education must be actively promoted among adolescents.

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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]
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
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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
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Korean Journal of Community Nutrition.2012; 17(6): 714. CrossRef
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Misung Kim, Juyoung Kim, Wookyung Bae, Sohye Kim, Yesong Lee, Woori Na, Cheongmin Sohn
Korean Journal of Community Nutrition.2011; 16(1): 51. CrossRef
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Korean Journal of Community Nutrition.2011; 16(1): 126. CrossRef

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[Korean]
Association between Sugar-Sweetened Beverage Intake and Dietary Quality using Nutritional Quotient among Adults in Daegu, Korea: Kilye Kim, Yeon-Kyung Lee; Korean J Community Nutr 2021;26(5):350-362. Published online October 31, 2021; DOI: https://doi.org/10.5720/kjcn.2021.26.5.350

Abstract PDF

Objectives
This study investigated an association between sugar-sweetened beverage (SSB) intake and the dietary quality of adults in Deagu, Korea.
Methods
A questionnaire survey was conducted in 1,022 adults aged 19 ~ 49 years (502 men and 520 women) in the Deagu area of Korea. Daily intake of SSB was obtained by the food frequency questionnaire, and the dietary quality was assessed using the nutrition quotient (NQ) for Korean adults. Multiple logistic regression analysis was used to estimate the association between dietary quality and daily intake of SSB in adults.
Results
Daily intake of SSB was 463.6 mL/d for total subjects, and the highest intakes were sweetened coffees (192.7 mL/d), followed by carbonated drinks (77.1 mL/d). Higher intake of SSB was associated with higher intake frequency of fast food or sweet and greasy bread, processed beverage, ramyon, eating out or delivery food and night snack, and also associated with lower frequency of water, breakfast intake and nutrition label checking in men or women. Men and women who had a higher intake SSB had significantly greater odds for being in the low grade of NQ (P for trend = 0.0006 for men, P for trend = 0.0007 for women), especially in the moderation factor (P for trend < 0.0001 for men and women).
Conclusions
This study showed that high SSB intake was significantly associated with low dietary quality among adults. These study results suggest that nutrition education programs and guidelines should be provided to adults for improving their consumption of SSB and related diets.

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Nutritional status of Daejeon citizens and needs of community nutrition care services: a cross-sectional study
Dahye Lee, Minsun Jeon
Korean Journal of Community Nutrition.2023; 28(1): 11. CrossRef
Sex-Based Differences in Factors Associated With Sugar-Sweetened Beverage Consumption Among Korean High School Students
Jin Suk Ra, Moonkyoung Park
Frontiers in Nutrition.2022;[Epub] 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]
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.

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Analytic Hierarchy Process approach to estimate weights of menu management in the school foodservice
Hyo Bin Im, Seo Ha Lee, Hojin Lee, Lana Chung, Min A Lee
Journal of Nutrition and Health.2024; 57(3): 349. CrossRef
Sugar Intake and Perception of Sugar Reduction among University Students in Gwangju
Yeon-Ok Park
Journal of the Korean Society of Food Science and Nutrition.2023; 52(11): 1170. CrossRef
Analysis of the Perception and Need for Education about Genetically Modified Foods among Elementary, Middle and High School Parents:Focus on the Jeonnam Region
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The Korean Journal of Community Living Science.2022; 33(1): 67. CrossRef
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 Journal of Community Nutrition.2021; 26(4): 270. CrossRef

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[English]
Sodium Reduction Practice and Importance-Performance Analysis of Sodium Reduction Methods in School Foodservice in Daegu: Su-Hyeon Kim, Eun-Kyung Shin, Yeon-Kyung Lee; Korean J Community Nutr 2020;25(5):386-395. Published online October 31, 2020; DOI: https://doi.org/10.5720/kjcn.2020.25.5.386

Abstract PDF

Objectives
The aim of this study was to investigate sodium reduction practices in school foodservice in Daegu. Methods The survey included 199 nutrition teachers and dietitians working at elementary, middle and high schools in Daegu. The survey topics included the following: the frequency of salinity measurement, workers in charge of the measurement, average salinity of the soup and stew served, frequency and difficulties of offering low-sodium meals, Importance-Performance Analysis (IPA) of sodium reduction methods in school foodservice and the need for political support in encouraging sodium reduction. Results The mean salinity of the soup and stew was higher in high school foodservice than in elementary and middle school foodservice. Middle and high schools have difficulties in offering low-sodium meals due to concerns of decreasing satisfaction for the meals. The results of the IPA of programs to reduce sodium in school meals showed that most of the items in the cooking and serving stages were in the 2nd quadrant (Keep up the good work), and all purchasing and menu planning stages occupied the 3rd quadrant (Low priority). To reduce sodium in school meals, government support is required in developing low-sodium recipes for school foodservice, encouraging education on sodium reduction for school foodservice officials and developing low-sodium food for institutional foodservice. Conclusions To encourage sodium reduction in school meals, the priority is to make low-sodium recipes available. Also, it is necessary to develop a program that calculates the sodium content in menus and processed foods through National Education Information System and to establish standards for sodium levels in school foodservice.

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충북지역 중등학생의 건강식생활 관련 식행동과 영양관리 정책에 대한 인식
은서 고, 영은 이
Korean Journal of Food and Cookery Science.2023; 39(3): 197. CrossRef
Importance-performance analysis of sodium reduction practices by school nutrition teachers and dietitians in the Republic of Korea
Youngmi Lee, Sooyoun Kwon, Meeyoung Kim
Nutrition Research and Practice.2023; 17(4): 812. CrossRef
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 Journal of Community Nutrition.2022; 27(1): 27. CrossRef
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 Journal of Community Nutrition.2021; 26(4): 270. CrossRef

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