L. Rea says a 200lb man would have a protein turnover rate of about 363 grams per day. How can that be so high? he would not need to eat anywhere near that much protein to maintain his muscle mass. when he describes the turnover rate, is he saying the protein is turned over multiple times or something?
365 grams is the total amount of protein both destroyed and created together daily. However this does not mean that just because the protein has been broken down it is lost forever. In fact the body breaks down complex amino acid chains to create shorter chains. As such the chains are often used to create new chains to replace and/or repair damaged tissues. Yes, this does mean that part of your heart can be part of your bicep now.