Micronutrient Information Center-A source for scientifically accurate information regarding the roles of vitamins, minerals, phytochemicals (plant chemicals that may affect health), and other dietary factors, including some food and beverages, in preventing disease and promoting health.
MEDline Plus Nutrition - Covering health, medications, and supplements, as well as tools and videos on nutrition.
National Library of Medicine databases- The world's largest biomedical library, NLM maintains and makes available a vast print collection and produces electronic information resources on a wide range of topics that are searched billions of times each year by millions of people.
USDA - Food and Nutrition Information Center (FNIC) - From the start, FNIC has strived to serve the professional community (including educators, health professionals, and researchers) as well as consumers by providing access to a wide range of trustworthy food and nutrition resources from both government and non-government sources.