Is there any evidence that one type of protein (beef vs. chicken vs. fish vs. egg vs. whey) is better utilized by the body than others or does the body read all protein alike?
asked byRebecca_1 (1579)
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on April 04, 2012
at 08:44 PM
For the way you asked the question, yes, there is ample evidence that difference protein sources are absorbed differently.
Read the Wikipedia article about Biological Value.
"Biological Value" is the term given to exactly what you are asking: how well one organism absorbs the proteins of another. The basis of absorption on this scale is based on Nitrogen absorbed from the protein source, and takes into account the required amino acids as the limiting amino acid is will limit the BV because the overall ability to produce, for e.g., human proteins from another protein source is limited by the "weakest link in the chain", i.e. the least occurring required amino acid.
FWIW, the usual 100pt reference is a whole egg.