Vitamin D inadequacy is widespread in females with polycystic ovarian syndrome (PCOS), with blood values of 25-hydroxy vitamin D (25OHD) down to or less than 20 ng/ml in two-third of PCOS patients. Decreased 25OHD concentrations have been linked to insulin resistance, ovulatory and period abnormalities, lower pregnancy outcomes, and other indications of PCOS, according to epidemiological studies. There might be some, but inadequate, research that vitamin D supplements can help women with PCOS with menstruation disruption and insulin sensitivity. Vitamin D inadequacy may bestow to the exacerbation of PCOS, and vitamin D intake may be helpful in the treatment of this condition. However, the present evidence is insufficient, and further experimental investigations are in need to establish vitamin D supplementation's potential advantages in this population. Many investigators claimed a pertinency between vitamin D concentrations and PCOS, nevertheless, these researches bear rattle factors of conjoined with other disorders or ailments, such as obesity, diabetes, and hirsutism. In the view of this, the present review detailed the role of vitamin D inadequacy and related biomolecule abnormalities, including sex hormones, and insulin and we listed their psychological and cardiovascular encounter. We concluded that the correlation between vitamin D intake and mended PCOS prominence is dubious and no definite findings attained by studies conducted across multicentral laboratories.

Keywords: PCOS; Vitamin D; Calcium; Androgen; Reproduction