A dose of vitamin D 4000 IU/d or more vs 3999 IU/d or less alone or with any other nutrient
Preterm birth · women during pregnancy
A dose of vitamin D 4000 IU/d or more showed no clear difference in preterm birth compared with 3999 IU/d or less alone or with any other nutrient (low certainty).
1 finding from 1 review
- Regimens of vitamin D supplementation for women during pregnancy 2019 · Cochrane Headline outcomes onlyRR 0.85 [0.64, 1.12]6 studies · 2948 participantsLow