In general, mollusks have 3 body regions: a head, a visceral mass, and a foot.. The head contains the sense organs and brain, while the visceral mass contains the internal organs. The foot is the muscular lower part of the body which is in contact with the substrate.
Creatine is one of the most potent muscle building supplements in the supplement world, and has been around for quite a long time too! An amino acid, creatine is found normally in the body, with 95% of it found in the skeletal muscle tissue.
So BCAAs are a type of amino acid, and amino acids are what make up proteins, and proteins are what make up your muscle tissues! We all know that we need plenty of protein to build and sustain muscle, but we need BCAAs for that, too.