• Journal of Nutrition and Health
• /
• v.48 no.3
• /
• pp.228-235
• /
• 2015

Purpose: Along with the adaptation of a Western dietary pattern and low physical activity, pediatric obesity is increasing in Korea, especially for boys. The aim of this study was to identify dietary behavior patterns and examine the snack consumption, dietary habit, and pediatric obesity by pattern groups. Methods: Boys aged 15~19 years were recruited from one high school in Seoul. A questionnaire including dietary behaviors and lifestyle factors was administered and height and weight were measured. A total of 932 boys participated except boys who had missing or incomplete response (n = 30). Three dietary behavior patterns were identified by cluster analysis; 'Healthy pattern', 'Mixed pattern' and 'Unhealthy pattern'. Results: Snack consumption differed according to dietary behavior patterns group. The healthy and mixed patterns showed higher frequencies of white milk and fruit consumption while the unhealthy pattern as well as the mixed patterns showed higher frequencies of sweetened snack and ice cream consumption. Food availability at home of each food differed according to pattern groups but showed a similar trend with food consumption. Regarding dietary habits, the mixed pattern showed higher proportion of taking dietary supplement and eating dessert while the unhealthy pattern showed lower proportion of eating regular meals and appropriate amount of meals. When the healthy pattern was set as a reference group, the odds ratio of pediatric obesity was 1.11 (CI 0.65-1.87) in the mixed pattern group and 1.88 (CI 1.14-3.10) in the unhealthy pattern group. Conclusion: In conclusion, dietary behaviors including snack consumption and lifestyle factors were connected. Unbalanced diet and undesirable dietary practice are important determinants in pediatric obesity.

• Culinary science and hospitality research
• /
• v.18 no.4
• /
• pp.277-291
• /
• 2012

To compare satisfaction with school meals provided by two different types of school meal services, a survey was conducted with 252 high school students (male: 138, female: 114) consisting of 133 students offered by on-site school meal service and 114 ones by transporting school meal service in Daegu. Anthropometric measurements of the study subjects showed that 68.1% of male and 41.2% of female students had normal weight while 50.0% of female and 10.1% of male students were underweight on the basis of BMIs. 'Taste' was the most important factor when eating meals followed by 'nutrition', 'hygiene' and 'preference by the students'. (of the both schools). Eating habits of the subjects were influenced mostly by family. Female students (17.5%) skipped breakfast more frequently than the male students (8.0%). The students (68.4%) offered by on-site school meal service were more satisfied with meals than those (9.2%) by transporting school meal service. Top reason for not being satisfied was 'taste' in both schools but the second reason (36.3% of the subjects) was 'quantity of food' only in the school with transporting school meal service. In satisfaction with menu, temperature, quantity and hygienic condition of foods, higher dissatisfaction was shown in the students offered by transporting school meal service. Items needed for improvement in school meals suggested by the students were 'taste of food' (25.6% vs 62.2%), 'diversity of menu items' (21.1% vs 8.4%), 'hygienic conditions' (17.3% vs 8.4%), 'quantity of food' (10.5% vs 17.6%) and 'balanced nutrition' (8.4% vs 1.7%) for on-site service and transporting one. It is concluded from these results that transporting meal service for school meals has to be changed from the present condition to improve the quality of meals and that managing and supporting programs should be developed by public institutions such as office of education.

• Analytical Science and Technology
• /
• v.14 no.2
• /
• pp.131-139
• /
• 2001

There is personal difference in the concentrations of trace elements in human hair according to human life or history suck as occupation, race, sex, age, food habit, social condition and so on. It is also found that the individual's deviation of elemental concentrations is reflecting the degree of environmental pollutants exposure to human body, intakes of food and metabolism. To compare the degree of accumulation in the hair tissue, human hair samples were collected from five positions of head and analyzed by non-destructive neutron activation analysis with and without washing according to IAEA's recommended method. Analytical quality control is performed using the certified reference material. The relative error of Cu, Cr, Na, Co, Mg, As, Se, Zn and those of Mn, Ca, Fe, Sr are within ${\pm}5%$ and ${\pm}10%$, respectively and the relative standard deviation of elements are within ${\pm}10%$. The deviations between the individuals and hair sampling positions were estimated. The deviation of individual was seven times more than that of positions. Under the defined condition, the difference and the correlation of elemental concentrations were compared with two different groups, office and factory workers. The result can be used as a fundamental data for human health and environment assessment.

• Culinary science and hospitality research
• /
• v.16 no.2
• /
• pp.330-341
• /
• 2010

This study aims to identify the nutrition knowledge, attitude on dietary life and eating habits of 281 high school students in Bucheon area and investigate difference and correlation among the factors: details of nutrition knowledge, attitude on dietary life, dietary habit, meal manager and the Body mass index(BMI). Data were analyzed by descriptive analysis, $\chi^2$-test, t-test, Pearson's correlation coefficients and ANOVA test using SPSS window program. The results show that parents were the most influential group in dietary habits and the group of friends were followed. The nutrition knowledge score of female students was higher than the score of male students. There was a significant difference between nutrition knowledge and attitude on dietary life by meal manager. Especially, nutrition knowledge showed the highest difference when they answered that the meal manager was a mother, and the subject 'eating regular meals' was significant when the meal manager was his/her mother. According to the result of the difference by meal manager, respondents preferred eating snacks the most when father was in charge of meal preparing. This group also preferred eating out than the other groups. Moreover, there was a significant correlation between nutrition knowledge and attitude on dietary life.

• Journal of Nutrition and Health
• /
• v.45 no.2
• /
• pp.150-158
• /
• 2012

This study was conducted to investigate the relationship between knowledge of nutrition labeling and the effect on eating habits with 300 high school boys in Seoul. The subjects were divided into an underweight (UW) group (BMI < $18.5kg/m^2$, n = 42), a normal weight (NW) group ($18.5kg/m^2\;{\leq}\;BMI\;<\;23kg/m^2$, n = 129) and an overweight (OW) group (BMI ${\geq}\;23kg/m^2$, n = 79) based on their body mass index (BMI). The average age of participants was 17.8 years old and their mean height and weight were 174.9 cm and 66.5 kg. The mean BMI of subjects was $21.7kg/m^2$ which fell within the normal range. Seventy six point four percent of subjects perceived nutrition labeling and they acquired the information pertaining to it through TV and internet. The UW group and the OW group obtained it from their parents, relatives and friends, while NW group acquired it from school. There were significant differences among groups in the acquired source of the information on nutrition labeling (p < 0.05). The NW group and the OW group trusted nutrition labeling more than the UW group, but there were no significant differences among them. Forty five point five percent of the UW group and 40.7% the NW group were satisfied with nutrition labeling education, while only 15.8% of the OW group did it. The OW group checked nutrition labeling more than the UW group and the NW group at the point of food purchase. The primary reason for examining nutrition labeling was 'to check nutrient contents' in the UW group and the NW group, while the OW group examined it to improve health including regulation of body weight. There were significant differences among groups with regards to the reason for examining nutrition labeling (p < 0.001). The OW group was aware that nutrition labeling affected their eating ha-bits significantly more than the other groups (p < 0.05). Therefore, application-centered education on nutrition labeling and the strong support of the government is needed in order to improve nutrition labeling use and to apply the information from nutrition labeling into student dietary life.

• Korean journal of food and cookery science
• /
• v.17 no.2
• /
• pp.91-104
• /
• 2001

This study on the some urban salaried workers' eating habits was performed according to age, sex, and occupation. The results were as follows: 1. The subjects of Pusan amount to 14.2%, Yosu 25.3%, Changwon 26.8%, Chinju 13%, and Inchon 20.7%. The proportion of women to men is 29.5% to 60.5%. The subjects in there twenties and thirties were 40.4%, those in there forties and fifties 26.9%. 2. 84.6% of the subjects had breakfast regularly(p＜0.005). It turned out that males enjoyed breakfast more than females. The main reason for skipping breakfast was the shortage of appetite. 3. Over 80% of subjects enjoyed Korean food for breakfast. 4. Most subjects usually ate lunch at the cafeteria. They enjoyed stew and usually paid ￦3,500-4,000 for lunch(p＜0.005). 5. 71.8% of subjects always had dinner(p＜0.005). Younger people under 20 skipped dinner sometimes as a means of weight control. 6. 60% of subjects enjoyed eating out for dinner once or twice a week(p＜0.005). Women ate out more than men, and the young ate out more than the old. People aged 30 to 40 ate out most frequently. 7. The subjects thought dinner was the most important dish, followed by lunch and then breakfast. 8. 66.6% of subjects had meat once or twice a week(p＜0.01). 13.8% under 20 didn't eat meat at all as a means of weight control. Women enjoyed meat more than men. The reasons for not consuming meat were a dislike and insufficient financial resources. According to the survey, most urban salaried workers had breakfast and dinner regularly, preferred Korean food for breakfast, had lunch from mass food supplies, enjoyed eating out once or twice a week, and women ate out more frequently than men. This study includes that it helps to develop the right eating habits and provide a more balance and varied diet.

• Journal of the Korean Society of Food Science and Nutrition
• /
• v.39 no.6
• /
• pp.826-836
• /
• 2010

This study was conducted to compare the dietary habits, nutrient intake and health status of female college students at Sahmyook University according to their majors. Specifically, women majoring in literature and science (77), food and nutrition (103) and sport (73) were evaluated. College women in the sports department were more likely to have a part-time job and had greater expenses than women in the other departments. The average height of college women in the sports department (164.3${\pm}$4.6 cm) was 2.04 cm taller than that of women with other majors (162.3${\pm}$4.7 cm). College women in the department of literature and science were more likely to have an unbalanced diet, even though they commonly ate small amounts of fruit as snacks. They were more prone to take nutrient tablets and vitamins when compared to women in the other departments. College women in the department of sport were more likely to have unbalanced meals (31.5%) and to overeat. Students in the department of food and nutrition ate more fruit, vitamin C and E but less cholesterol containing foods (p<0.05), less fast food and fried food than students in the other departments. The subjects in the department of sport ate less bread, sweet potatoes, fast foods and fried foods but more calories, fat, vitamin A, vitamin B, niacin, Ca, P and cholesterol than students in the other departments (p<0.05). They were also more likely to exercise for more than two hours a day. The most common problems among college women were going without meals, eating an unbalanced diet, overeating, intake of ill-balanced nutrients and lack of exercise. It was found that college women in the department of sport had a better intake of nutrients and maintained healthier life styles.

• Korean Journal of Human Ecology
• /
• v.10 no.2
• /
• pp.77-87
• /
• 2007

This research investigated the eating out and snack intakes situation of five hundred eighty five $5^{th}\;and\;6^{th}$ graders living in the city and rural parts of Jeonbuk province. The results of this study are as followed: Nuclear families in urban area and rural community are 84.5% and 64.7% respectively. On the other hand, extended families are 7.9% in urban area and 18% in rural communities. Out of all the households, 34.3% (urban: 37.2%, rural community: 31.5%) answered they like to eat out. Over 50.3% preferred eating Korean style food and the reason was 'the taste': urban (71.4%) and rural community (67.8%). People living in urban communities seemed to eat out more frequently than rural places and $3{\sim}4$ times a month was the average. Usually people seemed to eat out during the weekends and in the evening time 84.3% (after 7:00 p.m.). Based on each family's living standard, people answered 'we hardly ever eat out' for those in the lower class (59.1%), the middle class said once or twice a week (47.1%), and the upper class (35.7%). It was obvious that people in the middle and upper class tend to eat out more frequently than those in the lower class. The most common period of time which snacks were taken was after school (38.5%), on the way back from educational institute (35.0%) and the choices of snacks which they purchased were frozen sweets (56.4%)chips & cookies (25.2%) beverages (9.9%) Fast foods (4.6%) and fried foods (3.9%) in order. Urban children seem to eat more frozen sweets and rural children ate more chips & cookies. Also, amount of snacks between meals showed a higher percentage to those who had more pocket money, The type of snacks were fruits (37.1%) chips and cookies et cetera (19.2%) instant foods (12.8%) dairy products (11.1%) confectionary (10.3%) fried foods (5.1%) in order. The result shows that urban children eat out more frequently than those in rural areas, Eating around 7:00 p.m. was most common and the middle and upper class tend to eat out more frequently than those in the lower class, Also, snacks were most often bought before and after school. After 10:00 p.m frozen goods and chips were the most preferred choice. Specially, the reason for eating fast foods was because of the pleasing taste. From this study, it is clear that eating out and having snacks became pervasive into our lives in both urban and rural areas. Hereafter, an appropriate eating habit should be correctly educated to elementary students by spoken words and textbooks in a curriculum. In reality, snacks are classified as being the leading factor of obesity. Therefore more products containing balanced nutrition should newly develop rather than snacks with high fat content.

• Journal of the East Asian Society of Dietary Life
• /
• v.22 no.6
• /
• pp.744-757
• /
• 2012

This study was designed to obtain basic data for the globalization of Korean food and the expansion of food exports through contract foodservices. A survey of dietary habits and attitudes toward school foodservices was given to students in three American international schools served by a domestic contract foodservice management company located in Seoul and Gyeonggi area. The results showed an average of three meals taken daily 3.39 times for male students and 2.95 times for female students and the time required for a meal was about 24~26 minutes. The average breakfast frequency was 5.10 times(4.59 times for male students and 5.35 times for female students) and many students reported skipping breakfast due to a lack of time. The average weekly frequency of dining out was 1.78 times(2.15 times for male students and 1.60 times for female students). In all schools, irrespective of gender and grade, students responded that a desire for snacking was 'why they want to have cookies', and snacking hours were frequently listed as 'between noon and evening'. Many also responded that an unbalanced diet is the reason some snacks are 'not to their taste'. Overall, students were highly satisfied with the foodservice menu, although there was a significant difference in what was considered proper food temperature, proper food seasoning, suitable amounts of food, and freshness of food. Male and female students were specifically highly satisfied with the 'freshness of food materials' and 'variety of menu' respectively. Overall, all students were highly satisfied with the foodservice, including the 'cleanliness of tables and trays'.

• Journal of The Korean Society of Grassland and Forage Science
• /
• v.28 no.2
• /
• pp.119-128
• /
• 2008

The object of this experiment was to investigate the food habits of Korean native goats fed with various roughage sources. The feeding trials were conducted at Chungnam National University and Unbong Animal Genetic Resources Station in 2007. The experimental roughages sources were five including 25 species in all; grass sources: 5 species (Lolium perenne, Festuca arundinacea, Poa pratensis, Agrostis alba and mixed grass, legume sources: 5 species (Trifolium pratense, Medicago sativa, Trifolium repens, Melilotus officinalis and Vicia villosa), browse sources: 5 species(Quercus serrata Thunb., Prunus jamasakura Sieb., Quercus aliena Blume, Robinia pseudoaccacia and Pinus densiflora), weed sources: 5 species(Artemisia princeps Pampanini, Erigeron canadensis, Alopecurus aegualis Sobolewski, Echinochloa crusgalli var. frumentacea (Roxb.) Wight and Rumex crispus), and native grass sources: 5 species(Zoysia japonica Steudel, Agropyron tsukushiense var. transiens(Hack) Ohwi., Arundinella hirta(Thunb.) Tanaka, Miscanthus sinensis Anderss and Phragmites comunis Trin). Ten Korean native goats were selected which had nearly the same body weight(average 30.6kg, 남) as experimental animals. Experimental roughages were prepared by 0.5kg per 1 species fed to Korean native goats, and the experiment was carried out from 08:00 to 20:00. The chemical composition and dry matter digestibility of each roughage source and species were significantly different at the sampling area, plant species, growth stages and cutting period (p<0.05). The Korean native goats ate more roughages which had low fibrous contents, but high dry matter digestibility. Among all the 25 species of roughages, the favorite intake species order by Korean native goats was observed like this: Quercus serrata Thunb., Quercus aliena Blume, Trifolium repens, and Pinus densiflora and Artemisia princeps Pampanini which was lower intake compared to other domestic herbivores. On the other hand, compared to each roughage source, total intake amount by Korean native goats was showed as browse(29.9%), legumes(23.0%), weeds(21.6%), grasses(21.5%) and native grasses(4.0%), respectively. Based on the result, the food habit of Korean native goats seems to be closer to browser type.