Effects of vitamin and multiple micronutrient supplementation for pregnant and/or lactating women on maternal and infant nutritional status in low- and middle-income countries: a systematic review and meta-analysis
Vitamin A supplementation showed significant improvements in maternal serum levels and milk concentrations post-delivery.
Vitamin D supplementation during pregnancy raised maternal serum levels and decreased deficiency risks by 70%.
Micronutrient supplementation enhanced maternal nutritional status, but effects on infant nutrition were inconsistent, calling for further investigation.