• Korean Journal of Community Nutrition
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• v.15 no.2
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• pp.180-190
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• 2010

This study was conducted to investigate the differences in food habits, eating behaviors and food frequency by gender and regions in upper grade elementary school children in Korea. Subjects of this study were 1,211 children, 645 boys and 566 girls, attending 6 elementary schools (4th, 5th and 6th graders). 389 children lived in Seoul and 822 children lived in other regions. Mean height, weight and BMI of subjects were 142.4 cm, 38.7 kg and $18.8\;kg/m^2$ respectively. 70.5% of the subjects had breakfast every day and 12.4% of the subjects skipped breakfast. There were significant differences between boys and girls in causes of skipping breakfast, overeating, meal volume, and duration of meals. Girls showed more desirable eating behavior than boys (p < 0.001). Scores for specific eating behaviors such as unbalanced diet and intake of meats and vegetables were better in girls (p < 0.001), and boys ate meals faster than girls (p > 0.001). There were significant differences between Seoul and other regions in eating behavior. Eating behavior scores of children in other regions were higher than in Seoul (p < 0.01). Children in Seoul had a higher frequency of watching television with meals. Frequency of fruits (p < 0.001), milk products (p < 0.01), and meats (p < 0.05) of children in Seoul were higher than other regions. Otherwise the frequency of simple sugar products of children in other regions was higher than Seoul (p < 0.001). Frequency of green vegetables was higher for girls than boys, and frequency of fast foods was higher for boys than girls. These results showed that in nutrition education programs designed to improve the nutritional health of elementary school children, we need to focus more on differences in the children's food habits and eating behaviors by gender and regions. In consideration of these differences, such educational programs need to have a different emphasis for each gender and regions to serve its specific needs.

• The Korean Journal of Food And Nutrition
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• v.27 no.3
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• pp.369-382
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• 2014

The aim of this study is to provide the fundamental information on satisfaction for school food service and dietary habits of middle school students in Sejong Special Self-Governing City. Generally, the subjects had a high satisfaction level for school food service. The boys had comparatively more satisfactory days for school food service than the girls. The most dissatisfactory factors of school food service were the taste and variety of menu for the girls, and the time and place for lunch and the service of employee for the boys. The intersexual differences existed with a significant difference in the irregular intake of meals, the reasons to skip meals, and the eating speed. For the boys, the main reason to skip meals was due to lack of appetite, and for the girls, it was the weight-control. The boys finished each meal within 5~10 min and ate more than the amount the girls eat in general. The main components of breakfast for the subjects were a cooked rice, soup, and side dish in 65.9%, and the frequency of skipping breakfast was high with 32.8%, which was once per week. The favorite snacks for the middle school students were cookies and beverages in 29.4%, instant foods in 24.3%, and hamburger and pizza in 21.4%. The intake frequency of snacks was once or twice per week in 46.5% of the subjects. In addition, the subjects had a very high intake frequency of fastfoods with once or twice per week in 72.7%, and the most favorite fastfood was ramen in 57.7%. The subjects in 45.3% took dairy food every day. In conclusion, the middle school students need nutrition education to improve their eating habit and to increase the frequency of breakfast.

• The Korean Journal of Food And Nutrition
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• v.36 no.4
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• pp.286-295
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• 2023

The purpose of this study was to investigate the association between household economic changes by COVID-19 and dietary habits in Korean adolescents. The study analyzed data from the 17th Korea Youth Risk Behavior Survey in 2021. A total of 54,848 middle and high school students, 28,401 males and 26,447 females, participated in this study. COVID-19 lead to deterioration of household economy in the lower level of household economic status (p<0.001). The deterioration of household economic status by COVID-19 was associated with dietary habits such as lower breakfast intake, and higher fast food, soda drinks, and sweet drinks consumption (p<0.001). Logistic regression analysis showed that deterioration of household economic status was significantly decreased in frequency of breakfast intake (OR: 0.73, 95% CI: 0.67~0.80). The deterioration of household economic status by COVID-19 was also significantly associated with increased frequency of fast food (OR: 1.28, 95% CI: 1.16~1.41), soda drinks (OR: 1.42, 95% CI: 1.30~1.56) and sweet drinks (OR: 1.35, 95% CI: 1.24~1.46) consumption (p<0.001). In conclusion, it was confirmed that the change in household economy caused by COVID-19 was associated with dietary habits in adolescents. As the household economy deteriorated, there was an increase in undesirable dietary habits including skipping breakfast and fast food consumption.

• Journal of the Korean Society of Food Culture
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• v.22 no.6
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• pp.757-764
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• 2007

The purpose of this study was to investigate the dietary habits and demand for nutrition service of university dormitory residents. Out of 450 questionnaires distributed to the undergraduate and graduate students residing in a university dormitory, 335(74.4%) returned and 265(58.8%) were analyzed. The analyzed sample included 140 males(52.8%) and 125 females(47.2%). The number of undergraduate and graduate students were 183(69.1%) and 82(30.9%), respectively. Male and undergraduate students tend to more frequently use dormitory foodservice than the respective counterpart. About 21% of respondents skipped breakfast everyday and almost 2/3 of respondents skipped breakfast more often than $3{\sim}4$ times a week. The most often chosen reason for skipping meals was 'lack of time' for lunch and dinner as well as breakfast. Graduate students tend to drink coffee more often than undergraduate students. Male students were more likely to drink carbonated drinks and alcohol compared with female students. Over half(59%) of respondents were taking multivitamins and mineral supplements. About 80% of respondents perceived their health average or above. New residents having moved in to the dormitory less than a semester before tend to perceive their heath status worse than the residents having lived longer in the dormitory. The demand for nutrition service was high as shown by the high percentage of respondents willingness to receive the service: 76% for nutrition assessment service and 63% for nutrition counseling service. Such demand did not differ between males and female respondents. However, graduate students were more willing to participate in nutrition counseling service than undergraduates.

• Journal of the East Asian Society of Dietary Life
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• v.12 no.5
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• pp.352-363
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• 2002

The purpose of this study was to analyze health-related habits, weight control experience and body composition of 344 female students visiting nutrition counselling office. Dietary habits of the subjects were assessed by means of interview with questionnaire and nutrient intakes were evaluated by the simple dietary assessment method. Weight and height were measured to get body mass index(BMI) and waist-hip ratio and their body composition were measured by Inbody 3.0. The obtained results were as follows: 1) Among students, 14.5% were exercising on a regularly basis, of which the exercises were walking and gymnastic exercise(22.1%), jogging(14.1%), and rope-skipping(4.7%), 48.4% of students were little drinking and 30.5% were once a week and smokers were 4.1%. 2) 28.3% of students were little having breakfast and 15.1% were once or twice a week. Two third of total students were not having breakfast regularly. Also only 59.6% of students were having dinner everyday, which means many of them were even skipping dinner. The reasons why they were not having breakfast were because they don't have enough time to eat(66.0%) and for a diet(2.8%) and the reasons for skipping dinner were because they were not hungry(23.0%), for the weight loss(18.2%). It was shown that they would skip dinner rather than breakfast for a weight control. 51.6% of students were taking snack 1~2 times a day and 5.3% were having little snack. 55.4% of students were dining out once a day and 15.4% more am 2 times a day. 3) 46.7% of students were already experiencing weight control before visiting the counselling office. 78.5% of students tried on one kind of weight control method, 11.4% on two kinds, and 10.1 % on more than three kinds. The method they tried for a weight control most was the one food diet using egg, fruits and beans, which is the most popular among them, and the next were an aerobic exercise(23.6%). a diet tried by a famous entertainer (15.5%), and the fasting(14.5%). 4) The average BMI was 21.2 and the body fat rate was 28.1%. As a result of grouping BMI, 12.8% were underweight 67.6% normal weight 11.6% overweight and 8% obesity. Less than standard for the body fat rate were 0.6%, 50.6% standard, 48.5% more than standard. 49.2% of students as normal weight on a BMI were assessed the so-called "skinny obesity. 50% of consulted students situated fat intra-abdominally at the umbilical level(WHR>0.8). 5) The energy intake was 76.6$\pm$17.8% of RDA and constituent ratio of carbohydrate, fat and protein were 64.2$\pm$5.2%, 21.6$\pm$3.7% and 14.3$\pm$2.3%, respectively, which is little over of 20% of recommended ratio of fat. Protein and niacin intake were more than 90% of RDA and riboflavin and vit. C were taken more than 100% of RDA. But Fe intake was 69.4$\pm$19.3%, Ca 76.6$\pm$23.6%, which were the least constituents. There was not remarkable significance between energy intake and nutrient density based on the groups of underweight, normal weight, overweight and obesity of BMI. 6) It was shown that body fat rate had remarkably significant correlation(p<0.000) with BMI(r=0.760) and WHR(r=0.817) respectively, but body fat rate was more correlated with WHR than with BMI. There was not much significant difference between body fat rate and WHR whether they exercised or not. However. BMI was significantly higher in the exercise group because one who showed higher BMI started to exercise since they looked fat in appearance and perceived as they were fat. fat.

• Journal of the Korean Society of Food Science and Nutrition
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• v.46 no.10
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• pp.1234-1242
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• 2017

The purpose of this study was to investigate BMI, dietary behavior, and nutrient intake status according to frequency of breakfast intake in female college students (n=253) in Chuncheon area. This study was conducted by employing a self-administered questionnaire. Dietary assessment was measured by the 24-h recall method. The subjects were divided into two groups by frequency of breakfast: Five to seven times per week (eating breakfast group, n=139) and none to four times per week (skipping breakfast group, n=114). The living with parents group showed significant high frequency of breakfast intake, whereas the self-boarding group showed significant low frequency of breakfast intake. The body image satisfaction score of the 5~7 times/week group was higher than that of the 0~4 times/week group. The average height and weight of the 5~7 times/week group were $161.0{\pm}0.1cm$ and $52.6{\pm}7.6kg$, respectively, whereas those of the 0~4 times/week group were $160.7{\pm}0.1cm$ and $57.1{\pm}11.8kg$, respectively. The average body mass index (BMI) values of the 5~7 times/week and 0~4 times/week groups were $19.8{\pm}1.9kg/m^2$ and $21.5{\pm}3.4kg/m^2$, respectively. The dietary behavior score of the 5~7 times/week group was higher than that of the 0~4 times/week group. The daily averages for energy, carbohydrate, and protein intakes in the 5~7 times/week group were significantly higher than those of the 0~4 times/week group. Intakes of vitamin A, vitamin $B_1$, vitamin $B_2$, niacin, vitamin $B_6$, P, Zn, and cholesterol in the 5~7 times/week group were significantly higher than those of the 0~4 times/week group. Multiple regression analysis revealed that resident type was the most significant variable associated with breakfast intake frequency. Therefore, strengthening dietary education programs that largely focus on resident type will greatly contribute to prevent skipping breakfast.

• Journal of the Korean Society of Food Science and Nutrition
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• v.32 no.4
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• pp.627-635
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• 2003

This study was performed to investigate the relations between dietary habit and academic achievement, subjective health judgement, and physical status. The subjects consisted of freshmen in university and answered to questionnaires through the Internet. The questionnaire consists of the dietary habit, academic achievement (College Scholastic Ability Test), subjective health judgement, and physical status during their 3$^{rd}$ grade in high school days. Data were collected from 3,612 people. Over 33% of respondents had their breakfast daily. Subjects who had breakfast below twice per week were 37.9%. The major reason of skipping breakfast was lack of time to eat breakfast (62.8%). The subjects who recognized the importance of breakfast were 80.6% (p＜0.001). More than half (52.7%) thought that dinner was most tasty. People who ate breakfast regularly had a tendency to recognize their health state were in good health (p＜0.01). There was no significant difference of BMI (body mass index) according to the frequency of breakfast per week. The subjects who had their breakfast regularly and well-balanced dietary habit reported higher marks in the College Scholastic Ability Test. In contrast, the subjects who rarely had breakfast showed poor marks of academic achievement and subjective health judgement. According to these results, a good dietary habit is considered to be important to academic achievement and confidence in health. Therefore we suggest the school breakfast program and nutrition education program should be required for teenagers. In addition, the findings from this study would provide the basic information for nutrition education in Korean teenagers..

• Journal of Dairy Science and Biotechnology
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• v.28 no.1
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• pp.9-16
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• 2010

Adolescents grow rapidly and have lots of schoolwork for entrance examination, so good nutrition is very important to them. However, adolescents tend to have a poor dietary behavior including frequent consumption of empty calorie foods and skipping breakfast. In particular, frequency of drinking milk has been low among Korean adolescents, thus their dietary calcium intakes has been low. Undesirable dietary behavior of adolescents is a risk factor for poor nutrition, obesity and chronic disease of them. Milk is a good source for calcium, high quality of protein, vitamin and bioactive compounds including anti-obesity component, thus it has been reported that milk helps improvement of dietary nutrient adequacy and physical growth, increment of bone mineral density, and prevention of obesity and chronic diseases. Therefore, milk consumption of adolescents should be encouraged in order to help their nutritional status, physical growth and health.

• Korean Journal of Community Nutrition
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• v.8 no.4
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• pp.477-484
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• 2003

This study was conducted to investigate nutrient intakes and obesity-related factors of obese children by interviewing the subjects aged from 11 to 13 in Daegu. The collected data were consisted of items on general characteristics, dietary behavior, nutrition knowledge and daily nutrient intakes of subjects. The subjects were classified into obese and non-obese control groups according to their relative weights. Frequency of skipping breakfast and eating rate of obese group were significantly higher than those of control group. There was no significant difference between obese and control group in the nutrition knowledge score. Except vitamins $B_1$, $B_2$ and iron, the average daily intakes of other nutrients in obese were greater than control group. The most contributing factor to BMI turned out to be cholesterol intake. After the nutrition education targeting obese children, their nutrition knowledge scores improved, but the dietary behavior score was not significantly changed. Therefore, childhood obesity may be prevented by continuous education programs including the behavior modification of obese children. (Korean J Community Nutrition 8(4) : 477-484, 2003)

• Journal of Nutrition and Health
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• v.24 no.5
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• pp.458-468
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• 1991

The purpose of the study was to find out the eating behavioral difference and various connected factors between boys and girls of middle school students. One hundred ninety boys and two hundred six girls. who were sampled from the third graders of middle school located in Seoul and Chungbuk were asked to lilt out the questionaires. The results are summerized as follows : The boys had a better morning appetite and lower rate of skipping breakfast than the girls had. The girls carried more home-prepared boxed lunches and kept the lunch time better than the boys did. On weekend lunch time became more irregular and students had snacks more often than on weekdays. The number of lunchbox sidedishes was significantly influenced by the family composition, number of siblings, schooling of parents, occupation of tile father, and mother's empolymemt status. The frequency of snacks was significantly influenced by schooling of parents.