BCAA is known as the stress amino acids. Thirty percent of the diet should be proteins when the body is under severe stress, because stress causes protein to break down faster. BCAA have regulatory effects on overall protein metabolism and are required in larger amounts during stress than are other amino acids (and probably proportionately more leucine than either valine or isoleucine). 

BCAA proves to affect the longevity of  human. It also assists in the synthesis of other amino acids required for muscle synthesis. When it comes to exercise supplements,branched chain amino acids can improve exercise capacity and delay fatigue. BCAA is widely used in Sports Nutrition Supplement.

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