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Dietary flavan-3-ols intake and metabolic syndrome risk in Korean adults

Title
Dietary flavan-3-ols intake and metabolic syndrome risk in Korean adults
Authors
Yang Y.J.Kim Y.J.Yang Y.K.Kim J.Y.Kwon O.
Ewha Authors
권오란
SCOPUS Author ID
권오란scopus
Issue Date
2012
Journal Title
Nutrition Research and Practice
ISSN
1976-1457JCR Link
Citation
vol. 6, no. 1, pp. 68 - 77
Indexed
SCIE; SCOPUS; KCI WOS scopus
Abstract
Flavan-3-ols are a subclass of flavonoids found in a variety of foods including teas. The effects of flavan-3-ols on the risk of metabolic syndrome (MetS) have been investigated, generally focusing on tea catechins or individual flavan-3-ol rich foods, but there is little information on dietary flavan-3-ols intake and risk of MetS in population-based studies. In this cross-sectional study, we examined the association between dietary flavan-3-ols intake and the risk of MetS in Korean adults. Subjects comprised 1,827 men and 2,918 women aged 20-69 years whose data was included in the 2008 Korean National Health and Nutrition Examination Survey. This survey was conducted between January 2008 and December 2008. Total flavan-3-ols intakes were calculated from 24-hour dietary recalls using a flavonoids database. Thirty percent of the male subjects and 24% of the female subjects were reported as having MetS. In the female subjects, flavan3-ols intake was inversely associated with the risk of MetS after adjusting for potential confounders (5th vs. 1st quintile, OR = 0.64, 95% CI = 0.45-0.91, P for trend = 0.384). The main food source of flavan-3-ols was green tea followed by apples and grapes. Among MetS components, flavan3-ols intake was inversely associated with the risk of high blood pressure after adjusting for potential confounders (5th vs. 1st quintile, OR = 0.64, 95% CI = 0.45-0.90, P for trend = 0.005). No significant association between flavan-3-ols intake and risk of MetS was found in the male subjects. After stratified analysis by obesity (BMI ≥ 25 or BMI < 25), however, flavan3-ols intake was inversely related to the risk of hypertension in non-obese men. These results suggest that dietary flavan-3-ols intake may have beneficial effects on MetS risk by reducing the risk of hypertension. The effects of flavan-3-ols intake dependent on obesity need further investigation. © 2012 The Korean Nutrition Society and the Korean Society of Community Nutrition.
DOI
10.4162/nrp.2012.6.1.68
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신산업융합대학 > 식품영양학과 > Journal papers
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