Gestational diabetes mellitus (GDM) is one of the most widespread obstetric complications, and its prevalence increases year by year. GDM raises the risk of perinatal maternal and fetal complications, such as gestational hypertension and preeclampsia, and even affects the long-term health of the fetus and child. It is well known that trace elements are important for the health of pregnant women. Recent studies have demonstrated a link between GDM and changes in trace element levels in the body. Moreover, the theory of developmental origins of health and disease emphasizes the significance of t...