This study investigates the relationship between vitamin C intake and obesity prevalence among Korean adults. Based on data of the Korean National Health and Nutrition Examination Survey (2016-2017), a total of 1,356 participants were included in this analysis. Increasing the dietary vitamin C intake resulted in a significantly decreased occurrence of BMI obesity prevalence (p for trend=0.0194) and WC obesity prevalence (p for trend=0.0452). Moreover, increasing the dietary vitamin C intake of Korean adults having a high frequency of eating breakfast resulted in significantly decreased BMI obesity prevalence (p for trend=0.0406) and WC obesity prevalence (p for trend=0.0432). Among the Korean adults who ate out frequently, decreased BMI obesity prevalence was determined with increased intakes of dietary vitamin C (p for trend=0.0193) and total vitamin C (food and dietary supplements) (p for trend=0.0429), whereas significant decrease in WC obesity prevalence was observed with increased dietary vitamin C intake (p for trend=0.0484). Our results provide conclusive evidence that consumption of dietary vitamin C is associated with obesity prevalence in Korean adults, according to their habits of eating breakfast and frequency of eating out.

Abstract
I. 서 론
II. 연구 내용 및 방법
    1. 연구대상
    2. 연구방법
    3. 통계처리
III. 결과 및 고찰
    1. 일반적 특성
    2. 비타민C 섭취와 비만 유병률의 연관성
    3. 아침 식사 빈도에 따른 비타민C 섭취와 비만 유병률의 연관성
    4. 외식 빈도에 따른 비타민C 섭취와 비만 유병률의 연관성
IV. 요약 및 결론
References

• 장은영(고려대학교 교육대학원 가정교육전공) | Eunyoung Jang (Department of Home Economics Education, Korea University Graduate School of Education)
• 김유경(고려대학교 가정교육과) | Yookyung Kim (Department of Home Economics Education, Korea University)
• 신우경(서울대학교 의과대학 예방의학교실) | Woo-Kyoung Shin (Department of Preventive Medicine, Seoul National University College of Medicine) Corresponding author