Provitamin A-biofortified maize increases serum beta-carotene, but not retinol, in marginally nourished children: a cluster-randomized trial in rural Zambia

摘要

Background: Vitamin A deficiency remains a nutritional concern in sub-Saharan Africa. Conventionally bred maize hybrids with high provitamin A carotenoid concentrations may have the potential to improve vitamin A status in maize-consuming populations.