Welcome to our wide range of Cheap Discount Branch Chain Amino Acid Supplements.  Amino Acids BCAA's or Branch Chain Amino acids are organic compounds made of carbon, hydrogen, oxygen, nitrogen, and (in some cases) sulfur bonded in characteristic formations. Amino Acids or Strings of amino acids make up proteins, of which there are countless varieties. Of the 20 amino acids required for manufacturing the proteins the human body needs, the body itself produces only 12, meaning that we have to meet our requirements for the other eight through supplements.