The orange fleshed and purple fleshed sweetpotato (Ipomoea batatas L. Lam) cultivars are very rich source of naturally occurring carotenoid and anthocyanin valued as antioxidants and Vitamin A precursors. This paper aimed at reviewing the practical experiences from Southern Africa, Uganda, Kenya, Ghana, and Japan with respect to contributions of the orange and purple fleshed sweetpotato in the improvement of human health, nutrition, food and economic security. Sweetpotato mean storage root tuber yield ranged from 5t/ha to 87t/ha with very high market demand throughout the year. The days to maturity range from 90-150 days. The crop is rich in minerals, carotenoid and copious anthocyanin with stronger antioxidant capacity. In the current face of changing climate, sweetpotatoes remain promising as a potential climate smart agriculture crop whose potentials has to be exploited for food and nutritional security and poverty alleviation among the marginalized community. However, further study has to be done on its storage life, nutrient quality and content under long storage using different storage systems. Also further investigation has to be done on the yield and nutritional quality production under future climate to ascertain its use as food and nutritional security crop in the face of changing climate.
Keywords: Sweetpotato, Anthocyanin, Carotenoids, Food nutrition and economic Security. Extension Service.