Research progress on the correlation between vitamin D levels during pregnancy and gestational diabetes mellitus
Vitamin D is an indispensable fat-soluble vitamin in the human body,mainly in the form of vitamin D2 and vitamin D3,which can be synthesized by the skin and ingested in the diet.Vitamin D deficiency is currently a global public health problem,with approximately one billion people worldwide suffering from vi-tamin D deficiency,and pregnant women are at high risk.Gestational diabetes mellitus(GDM)refers to nor-mal glucose metabolism before pregnancy,and abnormal glucose tolerance of different degrees occurs for the first time during pregnancy,which is one of the complications of pregnancy.Continuous studies have proved that vitamin D deficiency during pregnancy is closely related to GDM,which can affect glucose balance through various mechanisms,leading to an increased risk of GDM.In addition,GDM increases the incidence of maternal and infant complications such as hyperamniotic fluid,pregnancy-induced hypertension,premature rupture of membranes,premature delivery,macrosomia,low body weight,and teratoma,which threatens maternal and in-fant health.In recent years,the research on the correlation between vitamin D and GDM has been increasing,and its correlation has been paid more and more attention by more and more scholars.This paper reviewed the research progress on the correlation between vitamin D and GDM.