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Frequently Asked Soyfood Questions

 

Soyfoods/General

10. Is soy protein a complete protein?

Soy is a complete protein according to the method of evaluating protein quality adopted by the FDA in 1991: "Protein Digestibility Corrected Amino Acid Score" (PDCAAS). Older methods, such as the Protein Efficiency Ratio (PER) based protein quality for humans on the growth of young rats, which have vastly different amino acid requirements than humans. When consumed at the recommended level of protein intake, soy protein contains sufficient amounts of all essential amino acids for human nutrition. In addition, soy protein quality is considered to be equivalent to animal protein. More information can be found at Stratsoy.