Have seen several articles stating that BCAA'S are a waste and that one 3oz piece of chicken has more BCAA'S in it then a whole 190 cap bottle of BCAA'S. Have used BCAA'S in the past to prevent muscle wasting while doing cardio but not so sure they really worked. Glutamine is rated in the top 5 by most bodybuilder's and nutritional experts. Never seen BCAA'S even in the top 10.