Muscle protein synthesis requires both leucine for signaling and a sufficient supply of all amino acids as building blocks.

“Lucine which is a a branch chain amino acid required for optimal muscle protein synthesis”

“protein synthesis protein turnover over and until it sees that signal it won't do it”

“if we give the same amount of Lucine or in this case Branch chain amino acids in a similar amount of milk protein so containing the same amount of branching amino acids plus all the other amino acids we see that that response is actually sustained over a more prolonged period of time”

“And in particular, they're a group of what are called branched-chain amino acids that are three of the nine. And the most potent, if you like, of the three branched chains is an amino acid called leucine. And the way I like to explain it to people is that it's, kind of, like the brick that when it arrives, it turns the process on.”

“20 gram for whey protein that will be about two gram to two and a half grams of Lucine so you can also give that as uh free Lucine or as the branchin amino acids and we've done that as well we Al also see that very strong increase in muscle protein syn first two hours but then it wears off much more rapid”

“so you can also give that as uh free Lucine or as the branchin amino acids and we've done that as well we Al also see that very strong increase in muscle protein syn first two hours but then it wears off much more rapid”

“so you need the Lucine to stimulate the process but then you also need a sufficient supply of all the amino acids to allow muscle protein synthesis to continuing to continue for a while so it's it's a double whammy it's both the signaling and supplying enough of the building blocks and that's that's the loosing threshold”