Precision in prescription: multiple micronutrient supplements in pregnancy

This Comment, in response to a publication by Caniglia et al. in Lancet Global Health, raises various concerns regarding the programmatic possibility of introducing multiple micronutrient supplements (MMS), which include iron and folic acid, for routine antenatal care in low-income and middle-income countries and argues for precision in nutrition prescription, based on accurate micronutrient deficiency biomarkers.