The Chi-square test showed that percentage of Vitamin D deficiency and insufficiency in belly fat and non-belly fat groups were respectively 60.5% and 27.6% with p=0.003; this percentage in insulin resistance and non-insulin resistance groups were respectively 61.5% and 38.8% with p=0.020; insulin resistance rate in belly fat and non-belly fat groups were respectively 66.7% and 37.9% with p=0.009.