Nutrient-rich crops can have a major impact on community health, especially in Africa, which will be the world's most populous continent by the end of the century. But if food security is to be sustainable, fertile soils and crops that are adapted to climate change are essential. "The single greatest cause of malnutrition in Africa is a nutrient-poor diet," says Jurie van der Walt, a South African author of several books on the value of indigenous plants in Africa.
"Although large quantities of food are produced, these foods do not contain enough nutrients. This situation can be corrected by ...
