The relationship between dietary intake of calcium and vitamin D and metabolic syndrome and its components

Falahi, Ebrahim and Najafi, Ayda and Tondkar, Porya and Karami, Masome and Roosta*, Sajad (2015) The relationship between dietary intake of calcium and vitamin D and metabolic syndrome and its components. yafte, 17 (4).

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Abstract

Background : Past studies have shown that dairy intake have an inverse association with metabolic syndrome. Although the underlying mechanism is not completely clear, it seems that vitamin D and calcium are two main factors responsible for this positive association. The aim of this study was to determine the association between dietary calcium intake and vitamin D and metabolic syndrome and its components. Materials and Methods: In this cross sectional study, 973 individuals (237 males and 736 females) from the residents of Khorramabad were selected using randomized multi-stage cluster sampling method. Dietary intakes of people, by use of a food frequency questionnaire (201 items), were evaluated and using Nutritionist 4 software were analyzed. Venous blood samples were collected to measure the metabolic variables and blood pressure were measured .Metabolic syndrome according to American Heart Association (AHA) criteria was defined. Results: The findings showed that there is a significant relationship between marital status and metabolic syndrome (p=0.001). Also there is a significant relationship between education and risk of metabolic syndrome (p=0.001). There was a significant inverse correlation between vitamin D and increased TG, FBS and SBP, (p=0.018, p=0.04, p=0.026 respectively) but there was no relationship between calcium and metabolic syndrome components. Conclusion: There was no significant association between vitamin D dietary and metabolic syndrome, although between vitamin D intake and the risk of high levels of FBS, TG and SBP inverse relationship were shown, although there is no significant relationship between calcium intake and metabolic syndrome. Keywords: Metabolic syndrome, Vitamin D, Calcium

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