SOURCE NATURALS - BCAA with L-Glutamine, Zinc, B6 and B12 - 240 CapsulesDESCRIPTION Source Naturals BCAA??? provides support to your body??? s muscular systems with a vigorous blend of branched chain amino acids and supporting B vitamins. Research has shown that during exercise, branched chain amino acids are metabolized directly in the skeletal muscle a process that provides robust musculoskeletal fortification when your body needs it the most, during workouts or athletic competition. Combined with vitamin B 6 and B 12