A multi-omics study reveals that impaired branched-chain amino acid (BCAA) catabolism is a key driver of sarcopenia, ...

But are they just a fad? BCAAs stand for branched-chain amino acids, of which there are three types: leucine, valine and isoleucine. They’re part of the wider group of 20 amino acids ...

BCAAs — specifically leucine, isoleucine, and valine — are essential amino acids (the building blocks of protein) that play a role in muscle protein synthesis, aka repairing and building muscle.