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BCAA is a formulated supplementary sports food. This tub is full of a combination of 3 amino acids; leucine, isoleucine and valine in the ratios of 2:1:1 that make up a complex called Branched Chain Amino Acids (BCAA). To find out what BCAA’s do in the body; why your friend, naturopath or coach recommended it and to find out how much you should take; google it. Cut and paste this word “BCAA” or “leucine” into google, pubmed, infotrieve or any unbiased information database. Do your own independent research. Come back and buy ours because we worked really hard to get a really high quality, pure and clean form.