The International Initiative for Impact Evaluation (3ie) and the Innovative Methods and Metrics for Agriculture and Nutrition Actions (IMMANA) programme were commissioned by Deutsche Gesellschaft für Internationale Zusammenarbeit (GIZ) in February 2020 to develop an Evidence Gap Map (EGM) of the effects of food systems interventions on food security and nutrition outcomes. This map can help increase the discoverability of evidence and its use by decision makers working on policies and programmes.