Korean J Community Nutr.  2015 Aug;20(4):259-272. 10.5720/kjcn.2015.20.4.259.

A comparison of Dietary Habits and Influencing Factors for Vegetable Preferences of Adolescents in Gyeongnam Province

  • 1Department of Nutrition Education, Graduated School of Education, Changwon National University, Changwon, Korea.
  • 2Department of Food and Nutrition, Changwon National University, Changwon, Korea. khl@changwon.ac.kr
  • 3Department of Practical Arts Education and Centre for Child Nutrition Education, Busan National University of Education, Busan, Korea.


A higher consumption of vegetables is emphasized as the core component of most dietary guidelines. Thus, this research investigated the dietary habits and influencing factors of vegetable preferences of adolescents.
This study was conducted by using a self-administered questionnaire. 400 students from two high schools in Gyeongnam (193 boys, 207 girls) participated in the survey. The questionnaire consisted of the following variables: dietary habit, dietary action guide and factors based on Social Cognitive Theory (SCT).
The dietary habits of subjects showed significant differences depending on whether they prefer vegetables or not. The subjects in the group who liked vegetables had better dietary habits than the other group. Also, the study determined that the most important reason for liking or disliking vegetables is due to the taste. In the practice of dietary guidelines, the group of subjects who liked vegetables followed dietary guidelines more closely than the other group (p < 0.001). When the factors based on SCT were analyzed, personal factors showed significant differences between the groups: outcome expectation (p < 0.001), self-efficacy (p < 0.001) and affective attitude (p < 0.001). Personal factors and rated vegetable preferences showed a significant correlation in multiple regression analysis (F=42.015, p < 0.001).
These results showed that vegetable preference is associated with a key point of desirable dietary habits among subjects. In order to increase vegetable preference or consumption, it is important to focus on strengthening not only self-efficacy of students, but also affective attitude of vegetable.


vegetable preference; dietary habit; social cognitive theory; adolescents

MeSH Terms

Food Habits*
Nutrition Policy

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