How does whey protein compare to other protein sources such as soybeans?
– Cereal grains tend to be deficient in one or more of the essential amino acids and are not as well balanced as milk proteins. Soy proteins, and other plant proteins, tend to be less available than animal proteins since much of their protein is tied up in indigestible complexes. However, digestibility of plant proteins can be increased by processes such as heat treatment, they are still not as available as animal proteins.
