Optimum nutrition bcaa powder provides a fantastic 5 000mg of the three branched chain amino acids of l valine l leucine and l isoleuciner these amino acids are essential in the body and cannot be made from other compoundsr the method used to produce the optimum nutrition bcaa powder means the powdered formula can be mixed easily with juice or water maxing it much simpler to use than with other bcaa supplement powdersr leucine isoleucine and valine these are the main ingredients to branc