FDA, Center for Food Safety & Applied Nutrition
National Institute of Diabetes and Digestive and Kidney Diseases
National Institutes of Health
National Institutes of Health , Office of Dietary Supplements
National Library of Medicine, PubMed
Office on Women's Health
USDA, Center for Nutrition Policy and Promotion
USDA, Food and Nutrition Information Center
USDA, FoodData Central
U.S. Department of Health and Human Services, Dietary Guidelines for Americans
USDA, MyPlate