Abstract

Introduction: Gestational diabetes manifests itself as not having glucose tolerance, and is seen in around 2-13 of all cases of pregnancy. One of the important factors in the development of gestational pregnancy is vitamin D deficiency. so, this study is designed to determine the relationship between low levels of vitamin D in pregnancy and gestational diabetes mellitus. Methods: In this review article, the databases Medline, Cochrane, Science Direct, and Google Scholar were thoroughly searched to identify the studies investigating the relationship between vitamin D and gestational diabetes. Results: vitamin D deficiency will definitely leave harmful effects on the pregnant women's health and on their infants, in a way that vitamin D deficiency condition during pregnancy is accompanied by the development of gestational diabetes, mother's blood pressure disorder, the embryo's skeletal growth disorder, brain growth and development disorders, and disorders in the functioning of the embryonic immune system. Discussion and conclusion: Given that pregnancy is diabetogenic and that the incidence of gestational diabetes is the society is high, paying more attention to providing adequate amounts of vitamin D can be an important factor in this area.