Original Article

Dietary intake of vitamin D and metabolic syndrome after 3-year follow-up: Tehran lipid and glucose study


Background: The aim of this study was to examine the association between dietary intakes of vitamin D and the metabolic syndrome (MetS) in Tehranian adults, Iran.
Methods: In this population-based prospective study, a sample of 2357 subjects, aged 20-74 years, who had completed a validated food frequency questionnaire, were  studied.  MetS  was  defined  according to  the modified  guidelines of the National Cholesterol Education Program Adults Treatment Panel III.
Results: Median intakes of vitamin D were 1.5 and 1.6 µ g/day in men and women respectively. After adjustment for confounding factors, dietary vitamin D intake was inversely associated with fasting blood glucose (β = -0.085, p = 0.004) and waist circumference (β = -0.065, p = 0.035); these associations were attenuated following  further  adjustment  for demographics,  body  mass  index  (BMI)  and dietary factors ((β = -0.066, p = 0.030) and (β = -0.065, p = 0.044), respectively. An association was observed between incidence of MetS and vitamin D intake (p trend = 0.040), independent of age, gender, smoking, physical activity; this association remained following further adjustment for BMI (p for trend = 0.044) and dietary factors (p for trend = 0.051).
Conclusion: Our findings suggest a significant inverse association between dietary vitamin D intake, MetS, and some of its components after controlling for confounding factors.

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IssueVol 1, No 2 (spring 2015) QRcode
SectionOriginal Article(s)
Vitamin D Metabolic syndrome Adults Iran

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How to Cite
Shab-Bidar S, Hosseini-Esfahani F, Delshad H, Asghari G, Mirmiran P, Azizi F. Dietary intake of vitamin D and metabolic syndrome after 3-year follow-up: Tehran lipid and glucose study. J Nutr Sci & Diet. 1(2):71-79.