This training guide applies a participatory approach, reflecting the considerable evidence that adults learn best by practicing and reflecting on their experiences. It thus emphasizes exercises to improve skills in counseling that support clients to adopt optimal nutrition practices. Women’s nutrition and infant feeding in the context of HIV are also addressed. Guidelines to link the prevention of malnutrition with treatment via the Integrated Management of Acute Malnutrition are also included. It can also be conducted with nutrition managers to equip them to provide supportive supervision to health and community workers.