Prenatal Iodine Supplementation and Early Childhood Neurodevelopment (PoppiE)

A randomized controlled trial to determine the effect of reducing iodine from vitamin and mineral supplements for pregnant women who have adequate iodine intakes (\>165 µg/d from food alone) on cognitive development of children at 24 months of age.

本随机对照试验（randomized controlled trial）旨在明确：对于仅通过食物即可获得每日165微克以上碘摄入量（即碘摄入充足）的孕妇，减少其维生素与矿物质补剂中的碘含量，对其子女24月龄时的认知发育产生的影响。