Nutritious foods for pregnant and lactating mothers include milk, beans, onions, tomatoes, fish and green vegetables. - - FAO Population Programme. The Population Programme of the Food and Agriculture Organization of the United Nations (FAO) has a project in Tanzania for population/family-life education which aims to promote child survival, child-spacing and improvements in nutrition and health. The Government of Tanzania has taken over the project and is continuing the work through educational campaigns aimed at rural families.