Proteins
MedlinePlus: Dietary Proteins
DHHS. NIH. National Library of Medicine.
Find the latest news, plus links to overviews, clinical trials and research related to dietary proteins. Also in Spanish.
USDA Nutrient Database List for Protein
USDA. ARS. Nutrient Data Laboratory.
Find out the protein content in common foods, sorted either alphabetically by food description (PDF|212 KB) or in descending order by nutrient content (PDF|226 KB) in common household measures.
MedlinePlus: Protein in Diet
DHHS. NIH. National Library of Medicine.
Includes general definition, function, food sources, and recommendations for protein in the diet. Also in Spanish.