This balanced blend also contains vitamin B-6 as a common cofactor for amino acids in the support of cardiovascular and nervous system health. Amino Acid sources (Whey Protein Isolate, Soy Protein Isolate, Sodium Caseinate) plus Amino Acids (L-Glutamine, L-Arginine, L-Ornithine) 2.8 g (2,800 mg) † Daily Value not established.