ADIPOQ and Insulin resistance: Some studies on the effects of vitamin D on anthropometric and biochemical indices reported that vitamin D was associated with body weight, fasting blood sugar (FBS), homeostatic model assessment for insulin resistance (HOMA−IR), glucose homeostasis, insulin resistance, high−density lipoprotein−cholesterol (HDL-C), low-density lipoprotein-cholesterol (LDL-C), triglycerides (TG), total cholesterol (TC), liver enzyme, and adiponectin (Sarathy et al., 2015; Foroughi et al., 2016; Doaei et al., 2019).