• The Korean Journal of Food And Nutrition
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• v.27 no.6
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• pp.1147-1155
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• 2014

Adolescence is the most important period of healthy development. The purpose of this study was to evaluate the food recognition, snack preference, and dietary behavior of 1st grade of middle and high school boys and girls. Subjects were 5,554 students from 16 schools with healthy tuck shop and 3,406 students from 9 schools without healthy tuck shop in Seoul, Korea. Students from schools with healthy tuck shop are significantly higher than control group for facility satisfaction and hygiene satisfaction (all p<0.05). For fruit, the preference (p<0.05) and recognition (attitude, p<0.001: intention, p<0.05: eating habit, p<0.001: social-environment, p<0.001: self-efficacy, p<0.001) of students in schools with healthy tuck shop are significantly higher than those in schools without healthy tuck shop. For the habit of checking the manufacturer, students in schools with healthy tuck shop were significantly higher than students in schools without healthy tuck shop (p<0.05). The result suggested that we have to create an environment in which fruits can be purchased easily at a tuck shop and to educate adolescents for the importance of healthy food purchasing behavior. In conclusion, healthy school tuck shop had a positive effect on accessibility to healthy food.

• Nutrition Research and Practice
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• v.6 no.2
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• pp.138-145
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• 2012

The objective of this study was to evaluate the effect of a healthy school tuck shop program, developed as a way of creating a healthy and nutritional school environment, on students' access to healthy foods. Five middle schools and four high schools (775 students) participated in the healthy school tuck shop program, and nine schools (1,282 students) were selected as the control group. The intervention program included restriction of unhealthy foods sold in tuck shops, provision of various fruits, and indirect nutritional education with promotion of healthy food products. The program evaluation involved the examination of students' purchase and intake patterns of healthy foods, satisfaction with the available foodstuffs, and utilization of and satisfaction with nutritional educational resources. Our results indicated that among of the students who utilized the tuck shop, about 40% purchased fruit products, showing that availability of healthy foods in the tuck shop increased the accessibility of healthy foods for students. Overall food purchase and intake patterns did not significantly change during the intervention period. However, students from the intervention schools reported higher satisfaction with the healthy food products sold in the tuck shop than did those from the control schools (all $P$ < 0.001), and they were highly satisfied with the educational resources provided to them. In conclusion, the healthy school tuck shop program had a positive effect on the accessibility of healthy food. The findings suggest that a healthy school tuck shop may be an effective environmental strategy for promoting students' access to healthy foods.

• Korean Journal of Human Ecology
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• v.22 no.5
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• pp.507-518
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• 2013

This study aims to investigate the usage of school tuck-shops by students and the desire for healthy tuck-shop according to the frequency of snack. From April 4 to April 13, 2012, a survey was conducted on 348 2nd grade high school students from six high schools in Daejeon Metropolitan City. The snack frequency in school tuck-shops was divided into 3 groups: 2 times a week or less(lower snack group), 3~4 times a week(middle snack group), 5 times a week and above(upper snack group). Out of total subjects, lower snack group was 41.4%, middle snack group 21.8% and upper snack group 36.8%. The upper snack group showed more in male students and more in the students with monthly pocket money more than 50,000 won and more expense per snack. The main reason for taking snacks was hunger at approximate 70% of total subjects, however, no difference was found in reasons by frequency of snack. About 90% of total subjects wanted healthy tuck-shop in school, but upper snack group showed less percentage and less care for healthy snacks. This result suggests that under the circumstance that most of high school students take snacks for relieving themselves from hunger at schools, it is desired to run healthy school tuck-shops in Daejeon Metropolitan, dealing with healthy snacks of balanced nutrition at resonable prices and to implement nutrition education programs especially for high frequent snack takers.

• Korean Journal of Community Nutrition
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• v.23 no.3
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• pp.226-233
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• 2018

Objectives: This study was conducted to investigate the current status and to suggest future directions for health management of teenagers who use healthy school tuck shops to improve teenagers' eating habits while reducing and preventing obesity. Methods: A total of 29 students (16 middle school students and 13 high school students) took part in the interview for this study, and the interview was conducted for each school's focus group by using qualitative research methodology. Results: The current status of using healthy school tuck shops and suggested future directions were divided into two categories. Personal barriers such as discrepancies between personal perceptions and behaviors and lack of food choice suitable to individual tastes can be solved by rebuilding the operating system to provide intuitive promotion of behavior and customized products through improvements in existing products and new product development. A lack of consistent management from low utilization convenience and difficulty in maintaining a constant purchase price can be handled by establishing a solution to restricted physical access for products, as well as seeking profit by improving distribution costs via continuous cooperation between the school and community. Conclusions: Continuous funding and a system that reflects the needs and preferences of healthy school tuck shop users should be applied for sustainable operation of healthy school tuck shops to improve teenagers' eating habits.

• Journal of Nutrition and Health
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• v.40 no.6
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• pp.531-541
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• 2007

This study was conducted to determine factors affecting detection threshold and the optimally-preferred concentration for sweet taste, since investigation into factors decreasing sensitivity or increasing preference for sweet taste is important to prevent overconsumption of simple sugar. Subjects were 70 first-grade middle school students in the Gyeonggi-Do. The detection threshold concentration of sucrose solution and the optimally-preferred sucrose concentration of omija jelly were determined by sensory evaluation. A self-administered questionnaire was used to obtain the information regarding health-related lifestyle practices, dietary habits, preference for and eating frequency of Westernized foods and frequencies of eating foods other than home-made. The detection threshold concentration of sucrose solution and the optimally-preferred sucrose concentration of omija jelly of the subjects were 0.204% and 14.44%, respectively. Subjects who exercise less (< 30 minutes/week except PE class), skipping meals (${\geq}$ 3/week), type of breakfast rather than traditional Korean meal and frequent eating out and buying foods from school tuck-shop tended to have higher sweet taste threshold. There was significant positive correlation between the sucrose threshold concentration and fried chicken preference or eating frequency of hamburger. Those who exercise less (< 30 minutes/week except PE class) did have significantly higher optimally-preferred sweetness of omija jelly, which tended to be higher in the subjects who had more (${\geq}$ 4 out of 10) behavioral or psychological stress symptoms and who had early getting-up time (before 7 am). There was significant positive correlations between the optimally-preferred sweetness of omija jelly and pizza preference, instant noodle eating frequency or sum of eating frequencies of five fast foods. From the results of this study, it was suggested that middle school students should make efforts to stop skipping meals, exercise more, eat Korean traditional breakfast and reduce the frequencies of eating out and using instant/fast foods in order to prevent overconsumption simple sugar.