Maternal prenatal, with or without postpartum, vitamin D3 supplementation does not improve maternal iron status at delivery or infant iron status at 6 months of age: secondary analysis of a randomised controlled trial.
Karen M O'CallaghanHuma QamarAlison D GernandA K OnoyovwiStanley ZlotkinAbdullah A MahmudTahmeed AhmedFarhana K KeyaDaniel E RothPublished in: BMJ nutrition, prevention & health (2023)
These findings do not support improvement of iron status by vitamin D. The effect of prenatal vitamin D supplementation on ferritin may reflect an anti-inflammatory mechanism.