Journal
INTERNATIONAL JOURNAL OF OBESITY
Volume 41, Issue 7, Pages 1074-1079Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/ijo.2017.88
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Funding
- National Institute for Nutrition and Health
- China Center for Disease Control and Prevention
- Carolina Population Center [P2C HD050924, T32 HD007168]
- University of North Carolina at Chapel Hill
- NIH [R01-HD30880, DK056350, R24 HD050924, R01-HD38700]
- NIH Fogarty International Center [D43 TW009077, D43 TW007709]
- China-Japan Friendship Hospital, Ministry of Health
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BACKGROUND: The frequency of spicy food intake has recently been associated with a reduced risk of mortality in the Chinese population. This study aimed to prospectively examine the association between chilli intake and the incidence of overweight/obesity in a Chinese adult population. METHODS: Adults aged 20-75 years in the China Health and Nutrition Survey were followed between 1991 and 2011. Dietary data were collected during home visits using a 3-day food record in 1991, 1993, 1997, 2000, 2004, 2006, 2009 and 2011. Cox regression was used in the analysis. Overweight/obesity was defined as body mass index >= 25 kg m(-2). RESULTS: A total 12 970 adults were followed for a median of 9 years. During 126 884 person-years of follow-up, 3203 subjects developed overweight/obesity. The absolute incidence rate of overweight/obesity was 26.4, 22.3, 24.4 and 20.5 per 1000 person-years among those who consumed no chilli or 1-20, 20.1-50, >= 50.1 g per day, respectively. Chilli consumption was therefore inversely associated with the incidence of overweight/ obesity. After adjusting for age, gender, energy and fat intake, smoking, alcohol drinking and physical activity, those whose cumulative average chilli intake was 0, 1-20, 20.1-50 and. 50.1 g per day had a hazard ratio for overweight/obesity of 1.00, 0.81 (95% confidence interval = 0.73-0.89), 0.77 (0.69-0.86) and 0.73 (0.63-0.84); P for trend < 0.001, respectively. There was no interaction between chilli intake and gender, income, education and residence (urban/rural) in relation to the risk of overweight/obesity. CONCLUSIONS: Chilli intake is inversely associated with the risk of becoming overweight/obese in Chinese adults.
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