As a contribution to increasing crop variety for improved food security in Subsaharan Africa, a leafy vegetable which is rich in vitamins and minerals shall be domesticated. At present, however, as highlighted by a research team from the Technical University of Munich (TUM) together with researchers from Nigeria, the plants still contain highly toxic substances that are carcinogenic and liver-damaging. The researchers are now aiming to generate toxin-free varieties so that the plant can be safely used.