Zinc status and dietary quality of type 2 diabetic patients: implication of physical activity level

Department of Food and Nutrition, Keimyung University, Daegu 704-701, Korea.
Nutrition research and practice (Impact Factor: 1.44). 03/2008; 2(1):41-5. DOI: 10.4162/nrp.2008.2.1.41
Source: PubMed


The purpose of this study was to analyze the relationships among zinc status, diet quality, glycemic control and self-rated physical activity level of type 2 diabetic patients. Dietary intakes for two non-consecutive days were measured by 24-hour recall method for seventy-six diabetic patients. Fasting blood glucose and HbA1c were measured for the assessment of glycemic control. We evaluated the extent of dietary adequacy by the percentage of subjects with a dietary intake of a nutrient less than the estimated average requirement(EAR), the dietary diversity score(DDS) and the dietary variety score(DVS). Zinc status was assessed from serum levels and urinary excretion. Dietary inadequacy was serious for five nutrients: riboflavin, calcium, thiamin, zinc and vitamin C. Dietary intakes from the meat, fish, and egg food groups and the milk food group were below the recommended level. We found that subjects with high levels of physical activities had significantly higher DVS and serum zinc levels compared to others (p<0.05). Fasting blood glucose levels and HbA1c were not significantly different across self-reported physical activity levels. Therefore, we suggest that maintaining physical activity at or above a moderate level is beneficial to improving dietary quality and zinc status.

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    • "This study was conducted on 76 type 2 diabetic adults attending local clinics and public heath centers. Characteristics of the diabetic subjects have been reported elsewhere (Yoon, 2008). For comparison, 72 apparently healthy normal adults living in the same city were also recruited during the same period. "
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