What is the quality of the protein blend in the bar?
Proteins are rated by Protein Efficiency Rating (P.E.R.), or alternatively by essential amino acid scoring. The Food and Drug Administration (FDA) mandates the use of this rating. To be considered high quality, the P.E.R score must exceed 2.4, which is that of the milk protein, casein. By the P.E.R standard, milk protein can be considered high quality, but soy cannot.
