60% of Africa's food is based on wheat, rice and maize—the continent's crop treasure trove is being neglected

African countries have become reliant on a few food items. Just 20 plant species now provide 90% of our food, with three—wheat, maize, and rice—accounting for 60% of all calories consumed on the continent and globally. This deprives the continent of diverse food sources at the very time when research has found massive food and nutrition insecurity in Africa.