Abstract
This study examined the relationship between zinc status and metabolic risk factors in obese Korean women. Forty obese women (body mass index (BMI)≥25 kg/m2) aged 19–28 years were recruited. Usual zinc intake was estimated from 3‐day diet records. Low zinc intake was defined as less than 8 mg zinc/day (n=22). Serum and urinary zinc, and metabolic risk factors such as waist circumference, blood pressure, triglyceride, high density lipoprotein cholesterol, fasting glucose, and insulin were measured. Dietary zinc intake and energy intake were significantly lower in low zinc group than adequate zinc group (P<0.001). Serum or urinary zinc concentration did not differ between two groups. Weight, BMI, and metabolic risk factors did not differ between two groups. Dietary zinc intake was negatively correlated with systolic blood pressure (P<0.05) after adjustment for energy intake. Either serum or urinary zinc concentration was not correlated with any metabolic risk factors. In multivariate linear regression analysis, dietary zinc intake was inversely associated with blood pressure in obese Korean women after adjustment for protein intake and body weight. Supported by the National Research Foundation of Korea.
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