Korean Journal of Community Nutrition

Research Articles

[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]
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

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.

Citations

Citations to this article as recorded by

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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[English]
A Comparative Study of the Dietary Behavior of Adults Aged 20 and Over according to the Mukbang Viewing Time: Ha-Yan Nam, Bok-Mi Jung; Korean J Community Nutr 2021;26(2):93-102. Published online April 30, 2021; DOI: https://doi.org/10.5720/kjcn.2021.26.2.93

Abstract PDF

Objectives
This study was conducted to investigate the relationship between watching Mukbang (eating broadcasts) and dietary and health behavior in adults who watch Mukbang Methods: The questionnaire was administered on a self-written basis through online and offline formats to 800 adults (400 men and 400 women). The contents of the survey consisted of general characteristics, Mukbang viewing time per week, breakfast intake frequency, preference for menus when viewing Mukbang , delivery food intake frequency per week, late meal intake frequency per week, and health behavior. The subjects were divided into three groups according to Mukbang viewing time.
Results
The body weight of viewers was significantly higher whenMukbang viewing time was over 14 hours for both men and women. In particular, based on the BMI (body mass index), those who watched Mukbang for more than 14 hours were found to be overweight. People with more than 14 hours of Mukbang viewing time per week were found to prefer mostly carbohydrate-rich food and meat, while those with less than 7 hours of Mukbang viewing time per week showed a higher preference for vegetables and fruits. An analysis of the frequency of breakfast eaten showed that the rate of skipping breakfast was the highest for those who watched Mukbang for more than 14 hours per week, and the rate of eating breakfast daily was the highest in the case of fewer than 7 hours of viewing. In the case of high Mukbang viewing time per week, the frequency of food delivery and night eating was high. When Mukbang viewing time was high, the viewer’s interest in health was low and the frequency of exercising too was low.
Conclusions
Viewers with high Mukbang viewing time showed undesirable health and eating behavior. Thus, it is believed that proper nutrition education on improving eating habits and raising the awareness of correct eating habits is necessary for such viewers.

Citations

Citations to this article as recorded by

Addictive symptoms of mukbang watching: A qualitative interview study using directed content analysis
Kagan Kircaburun, Filipa Calado, Andrew Harris, Mark D. Griffiths
Emerging Trends in Drugs, Addictions, and Health.2024; 4: 100147. CrossRef
Mukbang and Cookbang watching and dietary behavior in Korean adolescents
Jimin Sung, Jae-Young Hong, Jihong Kim, Jihye Jung, Seoeun Choi, Ji Yun Kang, Mi Ah Han
Nutrition Research and Practice.2024; 18(4): 523. CrossRef
Effects of watching Mukbang and Cookbang videos on adolescents’ dietary habits and mental health: cross-sectional study using the 18th Korea Youth Risk Behavior Survey
Seung-Hee Hong
Korean Journal of Community Nutrition.2024; 29(2): 156. CrossRef
Mukbang watching in Iran: a brief report validating the Persian version of the mukbang addiction scale and its relationship with disordered eating decisions and habits
Reza Shabahang, Sohee Kim, Xiuhan Chen, Mara S. Aruguete, Ágnes Zsila
Current Psychology.2024; 43(37): 29296. CrossRef
성인 남녀의 먹방 시청시간에 따른 식행동에 대한 연구
하얀 남, 복미 정, 은례 전
Korean Journal of Food and Cookery Science.2024; 40(4): 275. CrossRef
Changes In the Activation of Supra-hyoid Muscles and Heart Rate of College Students During Food Intake According to Watching Mukbang
Byung-o Ahn, Sung-Min Son, Hyeong-Min Kim
American Journal of Health Behavior.2023; 47(4): 832. CrossRef
밀키트 이용 고객의 식생활 양식과 밀키트 선택속성이 밀키트 제품의 만족도에 미치는 영향 분석
세은 김, 현주 배
Korean Journal of Food and Cookery Science.2023; 39(3): 187. CrossRef
The Relationship Between Watching Mukbang (Eating Show), Eating Behaviors, and Anthropometric Parameters in Iranian Female Students
Fatemeh Manafi Anari, Shahryar Eghtesadi
Journal of Research in Health Sciences.2023; 23(1): e00574. CrossRef
Health behaviors and eating habits in people’s 20s and 30s according to food content usage level on social media: a cross-sectional study
Seo-Yeon Bang, Bok-Mi Jung
Korean Journal of Community Nutrition.2023; 28(5): 392. CrossRef
Development and validation of Problematic Mukbang Watching Scale and Mukbang Watching Motives Scale: A cross-sectional study with adult mukbang watchers
Kagan Kircaburun, Andrew Harris, Filipa Calado, Mark D. Griffiths
Psychiatry Research Communications.2023; 3(3): 100138. CrossRef
Actual Status of Mukbang Viewing and Food Habits of University Students in Wonju Area
Seung-Lim Lee, Sun Hee Lee
The Korean Journal of Community Living Science.2022; 33(4): 631. CrossRef
Uses and gratifications of problematic mukbang watching – The role of eating and social gratification: A pilot study
Kagan Kircaburun, Mustafa Savcı, Emrah Emirtekin, Mark D. Griffiths
Journal of Psychiatric Research.2022; 146: 28. CrossRef
Problematic video-streaming: a short review
Maryam Rahat, Juliette Mojgani, Grace Lethbridge, Hashim Al-Bya, Beth Patterson, Carolina Goldman Bergmann, Michael Van Ameringen
Current Opinion in Behavioral Sciences.2022; 48: 101232. CrossRef

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Original Articles

[English]
Factors Related to Eating Habits and Nutrition Status of Mother Affecting on Body Mass Index of Children aged 1-5years: Data from the Fifth Korea National Health and Nutrition Examination Survey, 2010-2011: Miyeon Park, Pilsook Park; Korean J Community Nutr 2016;21(1):102-111. Published online February 29, 2016; DOI: https://doi.org/10.5720/kjcn.2016.21.1.102

Abstract PDF PubReader

OBJECTIVES
The intention of this study was to find out the impact of mother's body mass index, eating habits, nutrition status and sociodemographic factors on the body mass index of the children.
METHODS
The study used original data of Korea National Health and Nutrition Examination Survey (2010-2011) and had 957 children in the ages of 1-5 years and 957 mothers of these children, a total 1,914 as subjects. The weights (body mass indexes) of the children, subjects under 5th percentile were classified into a underweight group, 5~84th percentile into a normal weight group, 85-94th percentile into an overweight group and more than 95th percentile into an obesity group based on the 2007 Korean children and adolescents growth chart.
RESULTS
We observed that when the body mass index of a mother increased by 1, the possibility that her child would belong to the overweight group increased by 6.5% (95% confidence interval: 1.01~1.13), and the possibility that the child would belong to the obesity group increased by 95% (confidence interval: 1.01~1.18). With regard to the number of deficient nutrients which were ingested according to estimated average requirements (EAR) amid nutrients ingested by the mother increased by 1, the possibility that the child would belong to the obesity group increased by 16.6% (95% confidence interval: 1.01~1.35). In case the birth weight of child increased by 1kg, the odds ratio that the child would belong to the obesity group was 2.022 (95% confidence interval: 1.08~3.77).
CONCLUSIONS
We conclude that the body mass index, eating habits and nutrition status of the mother had significant effects on the body mass index of the child. Therefore, it is critical to recognize the importance of this observation and provide practical training for eating habits and nutrient intakes in order to achieve healthy growth and prevention of obesity among children.

Citations

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Relationship between the Dietary Behavior of Young Children and Their Mothers in Daejeon, Korea Using the Nutrition Quotient for Preschoolers and Adults
InYoung Jeong, SuJin Song
Korean Journal of Community Nutrition.2021; 26(1): 12. CrossRef
Exploring parenting variables associated with sweetness preferences and sweets intake of children
Taejung Woo, Kyung-Hea Lee
Nutrition Research and Practice.2019; 13(2): 169. CrossRef
Effect of Dietary Education Experience (Home, School, and Mass Media) on Food Consumer Information literacy
Ji Eun Kim, Kyoung Sook Choi
Korean Journal of Community Nutrition.2019; 24(5): 363. CrossRef
Study on the correlation between nutrition knowledge, dietary attitudes of guardians, and nutritional status of infants and toddlers - Nutrition-Plus program in Jeonju
Eun Young Song, Jeong Ok Rho
Journal of Nutrition and Health.2018; 51(3): 242. CrossRef
Factors Related to Recommended Nutrient Intakes of Young Children and Their Mothers
Jung Mi Kim, Soon Rim Suh
Journal of Health Informatics and Statistics.2018; 43(4): 282. CrossRef
Nutritional status of 3~5 year old children attending kindergarten and childcare facilities: Using data from the 2010 and 2014 Korea National Health and Nutrition Examination Surveys
Mi Yeon Park, Pil Sook Park
Journal of Nutrition and Health.2017; 50(4): 361. CrossRef
Mother's Parenting Style at Meal Time and Their Preschooler's Dietary Behavior
Soyeon Park, Youngmee Lee
Korean Journal of Community Nutrition.2017; 22(1): 13. CrossRef
Factors Affecting the Frequency of Skipping Meals of Prime-Aged Mothers with Children : Data from the Fifth Korea National Health and Nutrition Examination Survey, 2010-2011
Mi-Yeon Park, Pil-Sook Park
Korean Journal of Community Nutrition.2016; 21(5): 451. CrossRef

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[English]
A Comparison between Asia-Pacific Region Criteria and Entropy Model Criteria about Body Mass Index of Elderly Females Using Morbidity of Chronic Disease: Gu Beom Jeong, Jin Yong Park, Se Young Kwon, Kyung Ok Park, Pil Sook Park, Mi Yeon Park; Korean J Community Nutr 2014;19(5):490-498. Published online October 31, 2014; DOI: https://doi.org/10.5720/kjcn.2014.19.5.490

Abstract PDF PubReader

OBJECTIVES
This study was conducted to propose the need of re-establishing the criteria of the body weight classification in the elderly. We compared the Asia-Pacific Region Criteria (APR-C) with Entropy Model Criteria (ENT-C) using Morbidity rate of chronic diseases which correlates significantly with Body Mass Index (BMI).
METHODS
Subjects were 886 elderly female participating in the 2007-2009 Korea National Health and Nutrition Examination Survey (KNHANES). We compared APR-C with those of ENT-C using Receiver Operating Characteristics (ROC) curve and logistic regression analysis.
RESULTS
In the case of the morbidity of hypertension, the results were as follows: Where it was in the T-off point of APR-C, sensitivity was 67.5%, specificity was 43.1%, and Youden's index was 10.6. While in the cut-off point of ENT-C, it was 56.7%, 56.6%, and 13.3 respectively. In the case of the morbidity of diabetes, the results were as follows: In the cut-off point of APR-C, Youden's index was 14.2. While in the cut-off point of ENT-C, it was 17.2 respectively. The Area Under the ROC Curve (AUC) of the subjects who had more than 2 diseases among hypertension, diabetes, and dyslipidemia was 0.615 (95% CI: 0.578-0.652). Compared to the normal group, the odds ratio of the hypertension group which will belong to the overweight or obesity was 1.79 (95% CI: 1.30-2.47) in the APR-C, and 2.04 (95% CI: 1.49-2.80) in the ENT-C (p > 0.001).
CONCLUSIONS
We conclude that the optimal cut-off point of BMI to distinguish between normal weight and overweight was 24 kg/m2 (ENT-C) rather than 23 kg/m2 (APR-C).

Citations

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Factors related to cancer screening behaviors
Boyoung Choi, Tae Rim Um, Kwang-Soo Lee
Epidemiology and Health.2018; 40: e2018011. CrossRef
Nutrition States and Related Factors of Female Elderly according to Residence
Mi-Yeon Park
Journal of the East Asian Society of Dietary Life.2015; 25(1): 39. CrossRef

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[English]
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 J Community Nutr 2013;18(4):354-364. Published online August 31, 2013; DOI: https://doi.org/10.5720/kjcn.2013.18.4.354

Abstract PDF PubReader

This study was conducted to determine whether dietary factors could be related with serum adiponectin concentrations in 243, year-three female university students living in Seoul. The mean of body mass index (BMI) and adiponectin levels of all subjects were 20.17 kg/m2 and 11.07 microg/ml, respectively. When the subjects were divided into 3 groups based on BMI (underweight: < 18.5, normal: 18.5 < or = < 23, overweight and obesity: > or = 23), serum adiponectin levels in underweight group was significantly higher than that in 'normal' or 'overweight and 'obesity' groups. Also when the subjects were divided into two groups by mean adequacy ratio (MAR), serum adiponectin concentration of the high MAR group (MAR > 75) was slightly higher than that the low MAR group (MAR < or = 75). Serum adiponectin levels showed a negative correlation with body weight (p < 0.01) or BMI (p < 0.001) and a positive correlation with intakes of of animal or total protein (please clarify) or vegetable protein.Among the dietary behaviors, serum adiponectin levels of females who answered 'yes' to the question about 'eating breakfast' was significantly higher than that of those who answered 'sometimes' or 'No' (p < 0.05) and serum adiponectin levels were higher among those who reported higher fruit intakes. Overall, our results suggested that healthy lifestyle including acceptable BMI, eating breakfast and higher fruit consumption might play an important role in the prevention of obesity and enhancement of blood adiponectin levels.

Citations

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A Study on Food Habits and Nutrient Intakes according to BMI in Food and Nutrition Major and Non-major Female Students in Kyungnam University
Eun-Hee Seo
Korean Journal of Community Nutrition.2014; 19(4): 297. CrossRef
Relationships among Serum Adiponectin, Leptin and Vitamin D Concentrations and the Metabolic Syndrome in Farmers
Seo-Eun Yeon, Hee-Ryoung Son, Jung-Sook Choi, Eun-Kyung Kim
Korean Journal of Community Nutrition.2014; 19(1): 12. CrossRef

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[English]
Wanting Extremely Low BMI May be Associated with Higher Depression and Undesirable Dietary Habits in High School Girls Who were Not Overweight: Hyeyoung Park, Hongmie Lee; Korean J Community Nutr 2013;18(4):344-353. Published online August 31, 2013; DOI: https://doi.org/10.5720/kjcn.2013.18.4.344

Abstract PDF PubReader

The widespread pursuit for the thin physique may have detrimental impact on the wellbeing of the young generation, especially females. This study aimed to determine the effect of wanting very low body weight on dietary habits and psychological factors of female adolescents. Participants were 619 girls from 5 high schools in Kyeonggi, Korea. Information on dietary behaviors, psychological factors as well as current heights and weights and the desired weight for current height were obtained by questionnaire. Of total subjects, 38.1%, 35.5%, and 26.5% desired weights corresponding to normal (10~85 percentile), low (3~10 percentile) and very low BMI (< 3 percentile), respectively. The subjects who wanted to be very low weight had the average BMI of 18.57 kg/m2, which was significantly lower than 21.21 kg/m2 of those who wanted to be normal weight (p < 0.001). The subjects who desired very low weight had significantly higher scores for depression symptoms (p < 0.05), while there were no differences in obsession to lose weight and obesity stress. Moreover, more subjects in this group had undesirable dietary habits such as eating fast foods more than weekly (p < 0.05). These findings suggest that the desire for extreme thinness may lead female adolescents to have not only unreasonably similar obesity stress and obsession to lose weight but also higher depression symptoms, along with undesirable dietary habits. The findings suggest the potential harm from excessive weight concerns of female adolescents; thus efforts to teach this group about healthy weights are urgently needed.

Citations

Citations to this article as recorded by

Body Image Perception and Eating Behaviors among Male Middle and High School Students according to Weight Status in Seoul
Bo-Mi Kim, Kyung-Hee Kim
Journal of the East Asian Society of Dietary Life.2018; 28(2): 123. CrossRef
Agreement Between Actual and Perceived Body Weight in Adolescents and Their Weight Control Behaviors
Sun Mi Shin
Journal of Obesity & Metabolic Syndrome.2017; 26(2): 138. CrossRef
Body Image Perception, Eating Disorder Risk, and Depression Level according to Dieting Experience of Female High School Students in Seoul
Jisun Min, Kyunghee Song, Hongmie Lee
Journal of the Korean Dietetic Association.2016; 22(4): 241. CrossRef
The Associations between Discordance of Body Image and Physical Activities among Adults Aged 19 to 64 Years: Based on the Data from 2010 Community Health Survey
In Ae Chun, So Yeon Ryu, Jong Park, Mi Ah Han, Seong Woo Choi, Dae Sik Ko
The Korean Journal of Obesity.2014; 23(4): 274. CrossRef

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[English]
Assessment for Nutrient Intakes in Korean Women according to Obesity and Metabolic Syndrome: Hye Kyung Chung, Ju Hee Kang, Min Jeong Shin; Korean J Community Nutr 2010;15(5):694-703. Published online October 31, 2010

Abstract PDF: Recent studies have reported that a subset of obese individuals who were metabolically healthy but obese had more favorable clinical outcomes than obese subjects with metabolic disturbances. The purpose of this study was to evaluate the distribution and agreement of obesity subtypes according to body mass index (BMI) and metabolic syndrome (MS). Furthermore, we examined the differences of nutrient intake among the groups. Data was analyzed for 1,095 female subjects older than 40 years using Korean National Health and Nutrition Survey in 2008. The degree of obesity was classified by two methods, using BMI (obese > or = 25 kg/m2, not obese < 25 kg/m2) and MS (meet > or = 3 criteria among 5 index: waist circumference, triglyceride, glucose, HDL-cholesterol and blood pressure). Subjects were divided into 4 groups according to 2x2 cross table: non-obese without MS, non-obese with MS, obese without MS and obese with MS. Nutrient intakes were compared among 4 groups. The results showed that the proportions of non-obese without MS, non-obese with MS, obese without MS and obese with MS were 47.6%, 13.6%, 16.6%, and 22.2% of total subjects, respectively. The agreement (kappa value) of two methods was 0.354 (fair) in total subjects, 0.365 (fair) in 40-60 year old subjects and 0.304 (fair) in > or = 61 year old subjects. In > or = 61 years old subjects, intakes of percentage energy from carbohydrate, percentage of energy from fat, calcium, phosphorous, sodium, vitamin A, carotene, thiamine, riboflavin and niacin were significantly different among the groups. In contrast, the subjects of 40-60 years old, no differences in nutrient intakes were observed. In conclusion, there were differences in nutrient intakes among the groups subdivided by obesity and MS, especially in elderly female subjects. Individualized dietary guideline for subtype of obesity will be needed to treat metabolic disturbance of obesity.

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[English]
Effects of Frequent Eating-out and Breakfast Skipping on Body Mass Index and Nutrients Intake of Working Male Adults: Analysis of 2001 Korea National Health and Nutrition Survey Data: Joung Won Lee; Korean J Community Nutr 2009;14(6):789-797. Published online December 31, 2009

Abstract PDF: In order to investigate the effects of frequent eating-out and breakfast skipping of working men on body mass index and nutrients intake status, working male adults aged 20 or over were selected (n = 1883) from the data of 2001 Korea national health and nutrition survey. The subjects were divided into 4 groups according to the eating-out frequency(high: once or more daily, low: less than once daily) and breakfast eating or not. Four groups were high eating-out with breakfast eating (n = 609), high eating-out with breakfast skipping (n = 192), low eating-out with breakfast eating (n = 877), and low eatingout with breakfast skipping (n = 205). High eating-out group showed higher body mass index (BMI) than low eating-out group, but the difference of BMI was disappeared when adjusted with age, residence region and family income. However high eating-out group in case of breakfast eating, compared with the low eating-out, showed higher intakes or densities of energy, fat, fat-energy% and higher ratio of energy-fat overintake, and also showed higher mean nutritional adequacy ratio and lower ratio of nutrients intake deficiency. Calcium, iron, vitamin A and C intakes were not affected by eating-out frequency, but were lowered by breakfast skipping. Breakfast skipping also decreased intake frequency of unprocessed cereals and increased those of ramyon and carbonated and alcoholic beverages. From the results frequent eating-out with breakfast eating caused increased intakes of energy and fat, but did not cause BMI increase. Breakfast skipping, but not eating-out, had negative influences on mineral and vitamin intakes. Accordingly good eating-out as well as breakfast eating should be exceedingly emphasized at nutrition education for the working males.

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[English]
Age-related Circulating Inflammatory Markers and Cardiovascular Disease Risk Factors in Korean Women: Ho Kyung Kwak, Mi Joung Kim; Korean J Community Nutr 2009;14(4):451-461. Published online August 31, 2009

Abstract PDF: The purpose of this study was to investigate the age-related changes of cardiovascular disease risk factors and inflammatory markers in non-obese Korean women. Subjects were 112 women over 20 years old with body mass index (BMI) less than 30 kg/m2 and were divided into 3 groups (< 40 years, 40~59 years, > or = 60 years). Mean weight and BMI in the oldest group were significantly higher than those in the other 2 younger groups (P <0.05). Mean total cholesterol, triglyceride, LDL-cholesterol and apolipoprotein B/apolipoprotein A1 ratio (BAR) in the oldest group were significantly higher than those in the youngest group (P <0.05), and mean HDL-cholesterol of the oldest group was significantly lower than that of the youngest group (P <0.05). The older-aged group showed significantly higher mean values of atherogenic index (AI) and LDL/HDL ratio (P <0.05) than the respective younger-aged group, and AI was significantly correlated with age, nitric oxide and thiobarbituric acid reactive substances (P <0.01). In addition, mean vascular cell adhesion molecule-l (VCAM-1) tended to be higher in the older-aged group than the younger group. Tumor necrosis factor-alpha, a proinflammatory maker, was significantly positively correlated with serum homocysteine, a cardiovascular disease risk factor (P <0.01). In addition, a significantly positive correlation was observed between C-reactive protein and BAR (P <0.01). Overall results suggested that the aging might affect the increase of cardiovascular disease risk factors including the serum lipid profiles, weight and BMI, and age-related increases of weight and BMI might play a role in changes in certain biomarkers of inflammation.

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[English]
Nutritional Environment Influences Hypertension in the Middle-aged Korean Adults: based on 1998 & 2001 National Health and Nutrition Survey: Hae Jeung Lee, Haeng Shin Lee, Yoonna Lee, Young Ai Jang, Jae Jin Moon, Cho il Kim; Korean J Community Nutr 2007;12(3):272-283. Published online June 30, 2007

Abstract PDF: This study was performed to delineate the relationship between lifestyle and nutritional risk factors associated with hypertension in representative middle-aged Korean population. Hypertension in this study is defined as hypertensive (SBP> or = 140 mmHg or DBP> or = 90 mmHg) adults without recognition of a disease state before a health exam. With data from the 1998 and 2001 National Health and Nutritional Survey, nutrient intakes of 6,112 adults, 40-64 years of age were calculated using food composition database and matched with health examination records by individual ID. After excluding those with extreme intake values, the number of final subjects included in the analysis was 5,200 (male 2,458, female 2,742). Using logistic regression method, socio-demographic data, lifestyle factors, and nutrient intakes were analyzed. Risky factors for hypertension revealed in this study were age, sex, BMI over 23, waist circumference, alcohol intake of more than 16 g (male) or 8 g (female). Regarding nutrient intakes, the intakes of highest quartile for energy (> or = 2363.0 kcal) and protein (> or = 90.2 g) were significantly associated with higher risk of hypertension after adjusting for age, sex, and other socio-demographic factors (OR = 1.312 (1.046-1.711), OR = 1.488(1.194-1.854), respectively)). Although high intakes of sodium (> or = 6604.0 mg) and phosphorus seemed to be risk factors of hypertension also before energy adjustment (OR = 1.278(1.034-1.581), OR = 1.280(1.024 -1.600), respectively), only high intakes of energy and protein remained significant after adjustment. This study revealed that modifying risky lifestyles and dietary patterns, especially high energy intake, high protein intake, and high alcohol drinking, in middle-aged Korean adults could result in a prevalence decrease and/or prevention of hypertension.

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[English]
The Comparison in Daily Intake of Nutrients and Dietary Habits of College Students in Busan: Myung Soo Ko; Korean J Community Nutr 2007;12(3):259-271. Published online June 30, 2007

Abstract PDF: The purpose of this study was to investigate the dietary habits and daily intake of nutrients in college students. This survey was conducted using a self-administered questionaire. The average heights and weights were 173.5 cm and 72.3 kg of male students and 161.8 cm and 57.2 kg of female students. The average of BMI was 24.2 kg/m2 of male and 21.9 kg/m2 of female, and the value of male students was higher than the value of female students. The response to the daily meals was 54.6% for '2~3 times/week'. The regularity of mealtime was 41.7% for irregular and the frequency eating after nine was 45.7% for '5-6 times/week', respectively. The repast was 72.2% for 'overeating and little eating' and was a significant difference of male and female students (p < 0.05). The eating rate was higher '10 ~20 min'. As for breakfast food eaten, skipping breakfast was 23.6% for 'no/week' and female students were higher than male students (p < 0.05). The frequency of snacks was 36.0% for 'nothing' of males students and 34.8% for '3- 4 times/week' of female students (p < 0.05). The type of snack was a significant difference of males and females students (p < 0.01), and was the highest 75.0% for carbonated drinks of males and 37.5% for snacks of females. The eating due to stress solution was a significant difference of male and female students (p < 0.01), and was the highest 23.0% for 'frequency' of males and 44.7% for 'sometime' of females. As for food intake of male and female students, the meat intake was 66.7% for 'everything of male and female students. The fish intake was 68.1% for '1- 2times/week'. The milk, milk products, eggs and beans were each 40.3%, 58.3%, 56.9%, 47.2% for '1-2 times/week' (p < 0.05). The fat intake was 55.6% for '1~2 times/week'. The average consumption of energy was 58% of male and 67% of female of estimated energy requirement (EER). Their mean ratio of carbohydrate : protein : fat was 57 : 15 : 28 of all subjects. The mean intakes of vitamin C and folic acid were 70% and 51% of males and 62% and 52% of females of recommended intake (RI). The mean intakes of Ca, P, Fe and Na were 71%, 140%, 146% of males and 72%, 122%, 76% of female of RI and 273% of males and 233% of females of adequate intake (AI). Therefore, nutritional education is necessary for college students to establish physicall and mentall optimal health conditions through nutritional intervention.

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[English]
Food Intake and Clinical Blood Indices of Female College Students by Body Mass Index: Ok Hyun Kim, Jung Hee Kim; Korean J Community Nutr 2006;11(3):307-316. Published online June 30, 2006

Abstract PDF: This study was conducted to investigate the relationships among body composition, dietary intake, and clinical blood indices in college students by body mass index (BMI). Their body compositions were determined by means of BIA (Bioelectrical Impedance Analysis) method. Their dietary intake was determined using a 3-day record method and their hematological indices were determined by semi-automated microcell counter (Sysmex F-520). Their serum lipid levels were measured using biochemical analyzer (Spotchem). Subjects were classified as underweight, normal or overweight groups according to their BMI. The subjects were 69 healthy college students aged 20 to 26 years. The average age, height, weight, and BMI was 21.3 years, 162.6 cm, 54.4 kg, and 20.6 cm/m2, respectively. Their average consumption of energy was 1693 kcal, 84.7% of RDA and their mean ratio of carbohydrate: protein: fat were 54.5 : 16.4 : 29.0. There was no significant difference in nutrient intake among the groups except beta-carotene and vitamin C. The beta-carotene intake was significantly higher in the underweight group. Vitamin C intake was significantly higher in the overweight group. The mean intakes of Ca, Fe, Zn and folate of subjects were 74.8% to 83.2% of RDA. Especially, intakes of Ca, Fe, Zn and folate were lower in the abnormal weight groups. The overall mean values of the hematological indices in female college students were within the normal range and there was no significant difference among the groups. However, anemic subjects with hemoglobin (<12 g/dl) and hematocrit (<36 g/dl) accounted for about 11% of the subjects. The overall mean values of the serum lipid levels were within the normal range and there was no significant difference among the groups. But serum HDL-cholesterol level of the overweight group was lower than that of the other groups. LDL-/HDL-cholesterol ratio and AI index were significantly higher in the overweight group compared to the other groups. Based upon this study, it is necessary for college women to be educated regarding consuming more Ca, Fe, Zn, folate and less fat and cholesterol in order to have better health promotion.

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[English]
Factors Affecting Bone Mineral Status of Premenopausal Women: Se In Oh, Hang Shin Lee, Mee Sook Lee, Cho Il Kim, In Soon Kwon, Sang Chul Park; Korean J Community Nutr 2003;8(6):927-937. Published online December 31, 2003

Abstract PDF: This study was conducted to investigate dietary and other factors affecting bone mineral density (BMD) in Korean premenopausal women. Seventy-eight premenopausal women who visited the Health Promotion Center for health examinations volunteered to participate in this study. They were divided into two groups according to their bone status as shown by their T-scores: a non-osteoporotic group and a osteoporotic group. The results are as follows: The mean BMDs of the lumbar spine and femoral neck were 1.21 +/- 0.02 g/cm2 and 0.97 +/- 0.04 g/cm2, respectively. The BMD levels of the osteoporotic group were significantly lower than those of the non-osteoporotic group (p < 0.001, respectively). The heights of the women in the osteoporotic group were significantly lower than those of the non-osteoporotic group (p < 0.01) however, their body weights did not show any significant differences although they tended to be lower. The mean daily intake of energy was 1720 +/- 52 kcal. When the nutrient intake was compared with the Korean recommended dietary allowances (RDA), calcium, Fe, vitamin A and riboflavin intakes were lower than the RDA. Their was no significant difference in the nutrient intake of the non-osteoporotic group and osteoporotic group except for the intakes of protein, fat and niacin. Their was no significant difference between the non-osteoporotic group and the osteoporotic group and all were within the normal range. However, the serum alkaline phosphatase level of the osteoporotic group was significantly higher than that of the non-osteoporotic group (p < 0.001). Height measurements showed positive correlations with lumbar spine bone mineral density (LBMD, r = 0.332, p < 0.01) however there was no correlation with femoral neck bone mineral density (NBMD). Age, age at menarche, body weight, body mass index (BMI) and obesity showed no correlation with BMD. The BMD of the lumbar spine was significantly and positively related to the intake of niacin and vitamin C (r = 0.236, p < 0.05; r = 0.274, p < 0.05). Serum levels of calcium and phosphorus showed negative correlations with LBMD (r = -0.698, p = 0.0001; r = -0.503, p = 0.0001, respectively). The results suggested that the BMD of the lumbar spine was positively related to the intake of niacin and vitamin C in premenopausal women. Therefore, this study confirmed that one of the most effective ways to minimize bone loss would be have a higher intake of niacin and vitamin C rich foods and engaging habitually in physical activity may have a beneficial effect on BMD in the premenopausal period.

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[English]
The Relationship between Serum Cholesterol Levels and Dietary Fatty Acid Patterns, Plasma Fatty Acids, and Other Lipid Profile among Korean Adults: Jeong Sook Kim, Youn Kyoung Suh, Hyung Sook Kim, Kyung Ja Chang, Haymie Choi; Korean J Community Nutr 2003;8(2):192-201. Published online April 30, 2003

Abstract PDF: The purposes of this research were to assess dietary fatty acid patterns and to elucidate the relationship between the serum cholesterol levels and dietary fatty acid patterns, plasma fatty acid compositions, BMI (body mass index), and other lipid profile. The subjects were 151 adults aged 23 to 80 years, selected from the Outpatient Clinic and Cardiovascular Department of the Seoul Municipal Hospital. Dietary data were obtained using three day food records. Sixteen dietary fatty acids were analyzed using Korean and US nutrient databases. The subjects were divided into three serum cholesterol levels: desirable (< 200 mg/dl, N = 44), borderline-risk (> or = 200 - < 240 mg/dl, N = 35), and high-risk (> or = 240 mg/dl, N = 72) groups. The high-risk group had higher BMI, waist, and waist to hip ratio (WHR) than the desirable and borderline-risk groups. Serum concentrations of triglyceride, LDL cholesterol and LDL/HDL cholesterol ratio were significantly higher in the high-risk group as compared to those in the other two groups. The serum cholesterol levels were highly correlated with BMI (r = 0.435), triglyceride (r = 0.425) and LDL/HDL cholesterol (r = 0.870) ratio. The highest fatty acid intake was from oleic acid (33 - 34% of total fatty acid intakes), which was followed by linoleic acid (27%), palmitic acid (19%), and stearic acid (7%). There was no correlation between the serum cholesterol levels and the dietary fatty acid intakes, polyunsaturated/monounsaturated/saturated fatty acids (P/M/S) and omega6/omega3 ratios. The correlation between plasma fatty acids such as myristic acid, oleic acid, linoleic acid, and docosahexaenoic acid and serum cholesterol levels was also weak.

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[English]
Some Factors Affecting Bone Mineral Status of Postmenopausal Women: Se In Oh, Hang Shin Lee, Mee Sook Lee, Cho Il Kim, In Soon Kwon, Sang Chul Park; Korean J Community Nutr 2002;7(1):121-129. Published online February 28, 2002

Abstract PDF: Osteoporosis, the typical metabolic bone disease of the elderly, is characterized by a reduction in bone mineral density (BMD) and increased fracture risk. Genetic and environmental factors are known to play a key role in bone metabolism, and diet is also considered to be one of the important factors. The purpose of the present study was to investigate the relationship among the factors affecting BMD, including stature, body weight, age, time period since onset of menopause, and biochemical markers of bone turnover in postmenopausal women. Seventy-eight postmenopausal women who visited health promotion center for health examinations volunteered to participate in this study and they were divided into two groups according to the time period since onset of menopause : women with a time period since onset of menopause of less than 5 years (Group 1) and women with a time period since onset of menopause of 5 years or more (Group 2). The demographic characteristics and dietary intake were surveyed using a questionnaire. BMDs of the lumbar spine and femoral neck of subjects were measured by dual energy X-ray absorptiometry. Serum levels of 25-hydroxy-vitamin D and parathyroid hormone (PTH), known to be indicators of bone related hormone status, were anlyzed. Serum samples were measured for calcium, phosphorus, alkaline phosphatase, and osteocalcin as bone formation indicators, and urine was analysed for deoxypyridinoline, creatinine, calcium, and sodium as bone resorption indicators. The results are as follow : The mean BMDs of the lumbar spin and femoral neck were 1.02+/-0.02 g/cm2 and 0.81 +/-0.02 g/cm2, respectively, and the BMD level of Group 2 was significantly lower than tat of Group 1 (p<0.01, p<0.05, respectively). The mean daily intake of energy was 1838 +/- 55 kcal. When nutrient intake was compared with the recommended dietary allowances (RDA) of the subjects, only calcium, vitamin A and riboflavin intake showed means lower than the RDA. The nutrient intake did not show any significant differences between Group 1 and 2 Serum and urine levels of biochemical markers of bone turnover did not show any significant differences between Group 1 and 2, and all were within the normal range. However, the PTH and deoxypyridinoline levels showed a tendency to be higher, and the osteocalcin level to be lower in Group 2 than in Group 1. Although age and years after menopause (YAM) showed negative correlations with lumbar spine bone mineral density (LBMD) (r= -0.38, p<0.001, and r= -0.26, p<0.05, respectively), no correlation was found with femoral neck bone mineral density (NBMD). While height, body weight and body mass index (BMI) showed a positive correlation with LBMD (r= 0.32, p<0.001, r= 0.38, p<0.001, r= 0.22, p= 0.05, respectively), only body weight and BMI showed a positive correlation with NBMD (r= 0.30, p<0.01, and r= 0.27, p<0.05, respectivley). There was no significant corealtion between BMDs and the nutrient intake of subjects, except in the case of carbohydrates (r= 0.22, p<0.05). Also, serum and urine levels of bone turnover markers showed no significant correlation with nutrient intake. On the other hand, serum osteocalcin had a positive correlation with vitamin C intake (r= 0.22, p= 0.05), and urine deoxypyridinolin showed a negative correlation with niacin intake (r= -0.22, p= 0.05). Urinary na was negatively correlated with protein intake(r= -0.23, p= 0.05). The results suggested that it is difficult to prevent the decrease in bone mass among postmenopausal women eating the usual Korean diet. However, the BMDs of the lumbar spine and femoral neck were positively related to body weight ad BMI in postmenopausal women. Therefore, this study confirmed that one of the most effective ways to minimize bone loss in postmenopausal women would be to maintain an adequate body weight with balanced nutrient intake and activity in the pre-and postmenopausal periods.

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[English]
The Association of Body Mass Index with Dietary Intake, Serum Lipid Levels, Lipoprotein(a) and PAI-1 in Middle Class Korean Adults from 1995 to 1999: Jean Chinock Kim, Hio Jung Wee; Korean J Community Nutr 2001;6(1):51-68. Published online February 28, 2001

Abstract PDF: This investigation studied the relationship between Body Mass Index(BMI) and dietary intake, levels of serum lipid, lipoprotein(a) and plasminogen activator inhibitor-1(PAI-1) of 28.449 Korean adults(16.937 men, 11.542 women) from 1995 to 1999. The dietary assessment was conducted using 24-hour dietary records and food frequency questionnaires. During this five year study, the BMI normal-weight group, as a percentage of the annual test population, decreased from 68.0% to 60.2%, while the BMI overweight and obese groups collectively increased from 25.0% to 29.7%. The levels of serum total cholesterol (TC), LDL-cholesterol(LDL-C), Triacylglycerol(TG) and PAI-1 increased as the values of BMI increased, while the levels of HDL-cholesterol(HDL-C) and lipoprotein(a)(men only) appeared to decrease as values of BMI increased. The levels of daily energy intake also increased as values of BMI increased in both men and women. The obese group had significantly higher levels of carbohydrate, protein, fat(men only), and cholesterol intake than those of the normal-weight, underweight, and overweight groups. In men, BMI positively correlated with the levels of macronutrients and cholesterol intake(p<0.001), % energy of protein, fat, and alcohol intake(p<0.001), and the levels of serum TC, LDL-C, TG and PAI-1(p<0.001), while BMI negatively correlated with % energy of carbohydrate intake, and the levels of Lp(a) and HDL-C(p<0.001). In women, BMI negatively correlated with level of cholesterol(p<0.01), fat(p<0.001), alcohol intake(p<0.05),% energy of fat (p<0.001), % energy of alcohol intake and level of and HDL-C(p<0.001). Subjects who had serum TC, LDL-C, HDL-C, and TG levels greater than the standard reference values(TC>240 mg/dl, LDL-C>130 mg/dl, HDL-C>35, TG>200 mg/dl) exhibited a higher intake of the three macronutrients, iron, calcium, meat, milk and fatty foods than those subjects who had serum lipid concentrations less-than-or-equal-to the standard reference values. Overall, there was positive correlation between the high risk factors of vascular disease variables, dietary intake, and BMI. Prevalence of hypertension and high blood sugar were increased as BMI increased, but the prevalence of hypertension is decreased as the year goes by. These findings showed that dietary intake, level of serum lipids and other vascular disease risk factors increased as BIM increased. Therefore, middle or upper class Korean adults who have high BMI should improve their eating habits. This involve reducing alcohol, animal fat, high carbohydrate foods, and overall food intake, and balancing intake in order to lower vascular disease risk factors, including obesity.

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[English]
The Study of Associations among Serum Lipids, Anthropometric Measurements, Food Intake Frequency and Nutrient Intake in Healthy Adults: Da Hong Lee, In Sook Kim; Korean J Community Nutr 2000;5(4):642-653. Published online December 31, 2000

Abstract PDF: The purpose of this study was to investigate the association among food intake frequency, nutrient intake, anthropometric measurements, and serum lipids in 100 women and 85 men aged 40-74yrs residing in Jeonju City. Food intake frequency and nutrient intake were obtained from one-day dietary recalls. The results were as follows : The mean height, body weight and BMI were 161 cm, 62.5 kg, and 24 kg/m2 respectively. The mean of SBP and DBP were 118 mmHg, 77 mmHg respectively. The mean of TC and TG were 185.5 mg/dl, 153 mg/dl respectively. The mean daily energy and carbohydrate intake was 85. 7%, 91% of RDA for Koreans respectively and that protein intake was 118.5% of RDA. The TC levels of subjects less than 75%, 75-125%, more than 125% of RDA energy were 176 mg/dl, 192 mg/dl, 185 mg/dl respectively(p<0.01). The TC levels less than 75%, 75-125%, more than 125% of RDA protein were 180 mg/dl, 190 mg/dl, 175 mg/dl respectively(p<0.05). TC levels less than 75%, 75-125%, more than 125% of RDA fat were 181 mg/dl, 193 mg/dl, 194 mg/dl respectively(p<0.05). Of the subjects, 18% ate mushrooms. The BMI of the mushroom eaten was 24 and that of non-mushroom eaten was 25(p<0.05). Of the subjects, 28% consumed milk and milk produce. The mean level of TC and TG in milk and milk products eaters were 181 mg/dl, 131 mg/dl and that of non milk and milk products eaters were 197 mg/dl, 159 mg/dl(p<0.001, p<0.05). Of the subjects, 58% ate fish. The HDL-C of the fish eaten was 50 mg/dl and that of non-fishes eaten was 45 mg/dl(p<0.05).

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[English]
A Study of the food Habits of College Students by Body Mass Index: Bok Ran Kim, Yang Soon Im; Korean J Community Nutr 1998;3(1):44-52. Published online February 28, 1998

Abstract PDF: This study was designed to investigate the relationship between body mass index and food habits of college students. For this purpose, 358 students of Kangweon University were asked to fill out the questionnaires for food habits and weight control. The results are summarized as follows ; The rate of underweight, normal and obese was 16.5, 65.1, 18.4%, respectively. Food habits score of obese females were lower than normal or underweight females. Male subjects did not show significantly different scores among the three groups. Female obese subjects have lower scores than the other groups on the eating time, seaweed intake, protein intake and vegetable intake. Male obese subjects have nutritious meals and more eating time than normal and underweight males. College students are the early stage of adult life and their food habits, food behaviors and life style will continue in later life. Therefore, college students need more nutritional knowledge, positive dietary attitudes and modified life styles to prevent and treat obesity.

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