This manual provides practical guidelines for the management of children with severe malnutrition. It seeks to promote the best available therapy so as to reduce the risk of death, shorten the length of time spent in hospital, and facilitate rehabilitation and full recovery. Emphasis is given to the management of severely malnourished children in hospital and health centres; the management of severely malnourished children in disaster situations and refugee camps and of severely malnourished adolescents and adults is also considered briefly.