Overview Vitamin D Supplementation for the Prevention of GDM Status: Recruiting Trial end date: 2025-01-01 Target enrollment: Participant gender: Summary This study was a double-blind multicenter randomized controlled study. Phase: Early Phase 1 Details Lead Sponsor: Women's Hospital School Of Medicine Zhejiang UniversityTreatments: CholecalciferolErgocalciferolsVitamin DVitamins