Food Composition Products - Data sets prepared by USDA-ARS's Nutrient Data Laboratory. These data sets can be downloaded to your computer and used in your programs. Some of the data sets available are the USDA Nutrient Database for Standard Reference - Release 12, Nutritive Value of Foods (HG-72), Sugar Content of Foods, Nutrient Retention Factors, and data sets based on tables of special interest.
USDA-NAL, Food and Nutrition Information Center
The FNIC home page is a great place to start your Internet search for nutrition information. We have many publications on nutrition and also provide an excellent "jumping off point" for other good sources of nutrition information. See the Index of Food and Nutrition-Related Internet Resources for a listing organized by topic.
INFOODS (International Network of Food Data Systems)
INFOODS is a comprehensive effort, under the United Nations University Food and Nutrition Programme and co-sponsored by the Food and Agriculture Organization of the United Nations, to improve data on the nutrient composition of foods from all parts of the world.
http://food.ethz.ch:2000/Langual/langhome.html
Food and Agriculture Organization of the United Nations
After the International Conference on Nutrition in 1992, FAO renewed it's global programme on food composition. The objectives of this programme are to generate, disseminate and promote the use of good quality and accurate food composition data. FAO provides assistance to Member Countries in formulating and applying guidelines on terminology, sampling, analytical techniques and data quality control.