Research and Regulatory Gaps for the Substantiation of Protein Content Claims on Foods.

Protein claims provide guidance to consumers seeking protein-rich foods. Protein claim regulations differ globally, and both Canada and the U.S. require protein quality assessments, however methods differ. A tripartite workshop identified the need to: 1) harmonize; 2) update existing amino acid composition and digestibility databases; 3) develop non-animal bioassays; and 4) evaluate the impact of protein claims on human health. The Protein-Digestibility Corrected Amino Acid Score method is recommended for current regulatory use in Canada.