NOW Branched Chain Amino Acids (BCAA's) are 3 essential amino acids which are abundant in muscles.&nbsp; The branched chain amino acids Leucine, Isoleucine and Valine are three of the eight essential amino acids that the human body must receive in food. These amino acids cannot be synthesized in the liver.Read more about Sports Nutrition from Your Health Professor
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California Proposition 65 WARNING: Consuming this product can expose you to chemicals including mercury which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov/food.