Of the eight essential amino acids that cannot be produced by the body, the three branched-chain aminos Leucine, Isoleucine and Valine are of key importance. Based on their unique structure, activity, storage and metabolism, BCAA's have become a staple in the lives of many athletes and physically active individuals. They account for nearly 1/3 of the amino acids in muscle protein, and play a number of key roles in the repair and growth of muscle tissues. *These statements have not been evaluated by the Food and Drug Administration FDA). These products are not meant to diagnosee treat or cure any disease or medical condition. Please consult your doctor before starting any exercise or nutritional supplement program or before using these or any product during pregnancy or if you have a serious medical condition.