• Korean Journal of Community Nutrition
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• v.21 no.3
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• pp.293-300
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• 2016

Objectives: The purpose of the study was to develop a dietary fiber composition table (DFCT) and to assess dietary fiber intakes in Korea National Health and Nutrition Examination Survey (KNHANES). Methods: The DFCT was developed by compiling the food composition tables published by the agencies of Korea, United States, or Japan. When there was no available data from the same species or status (dried, boiled, etc.) of food, the values were imputed by estimating from the same species with different status or substituting familiar species in biosystematic grouping. Using KNHANES VI-2 (2014) microdata and DFCT, intake of dietary fiber of Koreans was estimated. Results: Among the 5,126 food items of DFCT, the proportion of items of which dietary fiber contents were taken from the analytical values of the same foods was 40.9%. The data from the domestic food composition tables was 37.5%, and the data from the foreign tables was 49.6%. The rest was assumed as zero, or estimated with recipe database and nutrition labeling. Mean daily intake of dietary fiber was 23.2 g, and mean intake per 1,000 kcal was 10.7 g in men and 12.6 g in women. The mean percentage of dietary fiber intake compared to adequate intake was higher than 100%. The major food groups contributing to dietary fiber intakes were vegetables and cereals, and the percent contribution were 32.9% and 23.0% of total dietary fiber intakes, respectively. Conclusions: This DFCT could serve as a useful database for assessing dietary fiber intakes and for investigating the association between dietary fiber intakes and noncommunicable diseases.

• Korean Journal of Community Nutrition
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• v.19 no.3
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• pp.258-273
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• 2014

Objectives: The purposes of the study were to develop a questionnaire for dietary habit survey for Korean adults, and unify the terms related to dietary habits. Methods: The Delphi method by 43 professionals on dietary habit research was applied to unify the terms. Results: With regard to results on terms related to dietary habit, the respondents recorded the highest percentage (90.7%) of selecting the term "dietary habits" and also the highest percentage (76.7%) of choosing "dietary habits" for English. The biggest percentage of the respondents chose "individual dietary behaviors repeatedly formed and habitualized under the social, cultural, and psychological influence in the group" as the concept of dietary habits. The Delphi survey for the development of a questionnaire resulted in the first questionnaire of 31 items, the second one of 27 items, and the third one of 25 items. The validity of questionnaire items was tested with content validity ratios (CVR). The items whose CVR value was 0.29 or lower were eliminated or revised, because the minimum CVR value needed to test validity was 0.29. To test the reliability of questionnaire items, test-retest method was performed in 163 adults. According to the Kappa coefficient in the range of 0.314-0.716, all of the 25 items were in the reliability scope. A survey was taken with 702 adults to finally revise and supplement the third questionnaire whose validity and reliability were tested. Conclusions: Through those processes, a questionnaire for adults' dietary habit survey was finally completed. The significance of the study lies in the development of the first questionnaire on dietary habits equipped with both validity and reliability in South Korea.

• Preventive Nutrition and Food Science
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• v.7 no.4
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• pp.442-446
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• 2002

Differences in dietary habits between Korean smokers and non-smokers were investigated using information obtained from 7,370 adults, aged 20 years and older who participated in the 1998 Korean National Health and Nutrition Sulvey. Dietary habit data including: skipping of meals, meal regularity, meal volume, snacking habits, removing fatty portions before eating foods, and dietary supplement intake were collected using a structured questionnaire by interview. Individual smoking data was also collected by interview as part of the health behavior survey. A Chi-square test was used to test the association between the dietary habits and smoking. 66.9% of the men were smokers (daily current or occasional current), while only 6.7% of women smoked. On average, 34.7% of the subjects were smokers. Smokers were more likely than nonsmokers to engage in the following dietary habits considered unhealthy: skipping breakfast, meal irregularity, large dinners, small breakfasts, frequently eating out, and eating food without removing the fatty portion. Therefore, Korean smokers should be provided education to assist them in making healthy dietary choices such as: eating regular meals, small dinners, and removing fatty Portion of foods. The survey also revealed that a substantial percentage (about 20%) of the subjects were taking some kind of dietary supplement, regardless of smoking status. It is, therefore, alto necessary to inform the general public that a balanced diet is the ideal way to obtain nutrients for optimal health.

• Journal of the Korean Dietetic Association
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• v.22 no.3
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• pp.225-231
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• 2016

The study suggests the possibility of using internet of things for a dietary intake survey. The development scenario of the dietary intake survey was composed of a weighing sensor for measuring food weight, bluetooth module for communicating through smart-phones, and smart-phone application. The weighing sensor attached to the bottom of utensils was designed to measure the weight of initial food & food eaten, and the results were transmitted to the smart-phone through the bluetooth module. The exclusive application in the smart-phone displayed the results of the amount of food intake, calorie intake, and eating rate. Through this system, subjects could continuously monitor their dietary intake & eating rate and recognize their actual eating environment, which leads to prevent overconsumption of food intake & form balanced eating habits. Based on this system, we need to consolidate and develop a weight control program.

• Korean Journal of Community Nutrition
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• v.9 no.4
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• pp.511-518
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• 2004

This study was designed to compare general characteristics and dietary habits between volunteers for a nutrition survey and non-volunteers using a questionnaire. Volunteers were recruited by advertising on the homepage of a university to assess nutritional status by examining dietary intake for three days and blood analysis. Non-volunteers were selected from some classes not related to nutrition. There were no significant differences in sex, monthly allowances, eating-out cost, drinking and exercise between the two groups, while the proportion of self-boarding was higher in the volunteer group than in the non-volunteer group, and smoking rate of volunteers was approximately 2.4 times lower than that of non-volunteers. Volunteers were less concerned about their diet than non-volunteers. No significant differences in concern about health, considering factors in their diet, self-evaluation of their diet, learning experience about nutrition, and vitamin/mineral supplement use were observed. The frequency and the place of eating-out for dinner were significantly different between the two groups. More proportions of volunteers tended to eat regularly and eat breakfast. Volunteers consumed seaweeds more frequently, and milk, fruits and fast foods less frequently than non-volunteers. Our results indicate that some characteristics and dietary habits of volunteers are different from those of non-volunteers. However, we could not show that volunteers were more interested in their diet and had desirable dietary habits than non-volunteers. Further research on the characteristics of volunteers who participate in nutrition survey may be helpful to interpret and generalize the survey results.

• Journal of the East Asian Society of Dietary Life
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• v.7 no.1
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• pp.107-115
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• 1997

The purpose of this study was to investigate of nutritional status, a intention for dietary inprovement and a degree of dietary satisfaction of Buddhist nuns9age 23~43yr). The survey was carried out through physical examination and questionaries at Woon Mun temple in Kyungpook province September through Octoer in 1996. The results are summarized as follows: 1) All nutrients were higher than recommended daily allowances, and the ratios of carbohydrate:protein: lopid from total calories was 76:13:11 respecting ; 2) In degree of dietary satisfaction: satisfaction, between, dissatisfaction were 55.47, 36.59, 7.93% of subjects. 3)In intention for dietary improvements : the s\ulcorner way, a little improvements, much improvements were 55.47, 41.46, 3.07%. 4) Diet type were in regular sequence of volume, gourmet ; balance ; diet ; fast food type.

• Nutrition Research and Practice
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• v.1 no.2
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• pp.84-88
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• 2007

The purpose of this study was to identify dietary patterns among children and adolescents in Korea and to examine their associations with obesity and some blood profiles. One day food consumption data measured by 24-hour recalls on 2704 subjects aged 1 to 19 were used from 2001 Korea National Health and Nutrition Survey. The data of blood profiles available in the ages of 10 or older was also used. After categorizing each food consumed into 29 food or food groups, five dietary patterns were derived through a factor analysis and subjects were classified into three major dietary patterns via a cluster analysis using the factor scores. Three dietary patterns were identified as 'traditional diet' (25.6%), 'westernized-fast food' (6.2%), and 'mixed diet' (68.2%). The 'traditional diet' pattern had a higher percentage in boys. Both the 'traditional diet' and the 'westernized-fast food' had higher proportions of adolescents (12-19 y) than younger children, while the 'mixed diet' had a higher percentage of preschool children (1-5 y). Obesity rate analyzed within each age group showed no differences among 3 dietary pattern clusters. Blood pressure and all plasma profiles were not different among dietary patterns when adjusted with age and gender. Conclusively, children and adolescents in Korea had three distinct dietary patterns, which were associated with gender and age. These patterns could be useful to plan nutrition interventions for teenager health promotion.

• Korean journal of food and cookery science
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• v.28 no.2
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• pp.183-193
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• 2012

In this study, data was collected on the dietary life education at elementary schools according to the Food Education Support Act using elementary school teachers as subjects. A survey was conducted on 258 elementary school teachers at seven elementary schools located in Seoul, Gyeonggi, and Daegu, Korea from April 14-17, 2010. Most teachers reported that dietary life education was very much needed. The appropriate individuals to teach dietary life education were nutrition teachers, charge teachers, and dietary life education tutors, in that order. The most appropriate time to conduct dietary life education was during dietary life-related subject hours, dietary life education hours, food service hours, and discretionary and extracurricular activities, in that order. The most effective materials and methods used for dietary life education were projection materials and dietary life-related special lectures. Efficient dietary life education methods can be used to develop dietary life education programs. Based on these results, elementary school teachers recognize that dietary life education is very much needed and believe that it would be desirable to conduct dietary life education using nutrition teachers in cooperation with other related teachers.

• Korean Journal of Community Nutrition
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• v.22 no.6
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• pp.520-528
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• 2017

Objectives: The aim of the study was to assess the intake of dietary cholesterol and its major food sources in the Korea National Health and Nutrition Examination Survey (KNHANES). Methods: A total of 20,671 nationally representative sample who had 24-hour recall data from the KNHANES VI (2013-2015) was included in this study. Mean cholesterol intake and the prevalence of subjects with cholesterol intake over the Intake Goal of the Dietary Reference Intakes (DRIs) for Koreans were analyzed. Intakes of cholesterol by food groups or each food were calculated to find out the major food sources for cholesterol intake in Koreans. Results: The mean dietary cholesterol intake was 261.3 mg, which was higher in men (303.5 mg) compared to women (219.1 mg). Dietary cholesterol intake and the prevalence of subjects with cholesterol intake over the Intake Goal of DRIs were the highest in the 19-29 year old group. The eggs was the first major food group source for cholesterol intake in all age groups. Major food sources for cholesterol intake among Korean were egg, chicken, pork, squid and beef, which contributed 66.9% to total cholesterol intake. Conclusions: Although the mean dietary cholesterol intake was under 300 mg, the prevalence of subjects with cholesterol intake over the Intake Goal of DRIs was about 30% in adults. Because both the mean intake and the prevalence of subjects with cholesterol intake over the Intake Goal of DRIs were higher in young adult groups, the dietary cholesterol intake was expected to be increased.

• Journal of Preventive Medicine and Public Health
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• v.44 no.2
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• pp.93-100
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• 2011

Objectives: This study was performed to identify the socioeconomic factors, health behavior factors and dietary patterns that have an influence on the fasting blood glucose in adults. Methods: This study used data collected from the 2007, 2008, 2009 Korea National Health and Nutrition Examination Survey. The final sample included 4163 subjects who were 30-59 years old and who had completed the necessary health examinations, the health behaviors survey and nutrition survey. Results: Eleven dietary patterns emerged from the factor analysis with different factor loading. After controlling for potential confounders, multiple regression analysis of the dietary patterns showed that 'fruits', 'alcohols', and 'starchy foods' affected the fasting blood. Lower consumption of 'fruits' and higher consumption of 'alcohols' and 'starch foods' were significantly associated only with an increased risk of high blood glucose. Conclusions: In the light of the results of this study, it appears pretty likely that the risk of developing high blood glucose can be reduced by changing a person's dietary patterns.