Effect of vitamin D3 supplementation during pregnancy on high risk factors — a randomized controlled trial

Objectives Vitamin D plays an important role in the release of the placenta and implantation, and low levels are a risk factor for pre-eclampsia. Studies have also shown that symptomatic treatment of vitamin D3 deficiency can effectively reduce the risk of pre-eclampsia. In this study, vitamin D3 supplementation was performed on the risk of pre-eclampsia to observe its effect. Methods From January 2016 to December 2018, 450 women with maternal...