The study included 1,847 supplement users and 4,461 nonusers enrolled in the 2010-2011 Korea National Health and Nutrition Examination Survey. Twenty-four-hour diet recall data was analyzed for antioxidant content. Survey responses provided information concerning the use of supplements.
Metabolic syndrome was diagnosed when three or more risk factors for the condition—abdominal fat, high blood pressure, high blood sugar, and unhealthy cholesterol levels—were present during health examinations.
The study uncovered an 18% lower prevalence of metabolic syndrome in supplement users. Among those whose intake of vitamin A was among the highest one-third of supplement users there was a 28% lower risk of metabolic syndrome compared to nonusers whose intake of the vitamin was among the lowest third. For supplement users whose vitamin E intake was among the highest, the risk was 26% lower.
Editor’s Note: Supplement users whose total antioxidant capacity from diet and supplements was among the top third of subjects had a 28% lower risk of metabolic syndrome than nonusers whose total antioxidant capacity was among the lowest.