Prolab Nutrition Amino 2000™ is a potent amino acid formula containing 2000 mg of pure, naturally occurring L-form amino acids per tablet, scientifically proportioned to meet your nutritional needs.Athletes require greater protein intakes compared to sedentary individuals to remain in a positive nitrogen balance. A positive nitrogen balance is necessary to promote protein accretion and muscle growth. Amino 2000™ derives its protein source from the pancreatic digestion of whey, a high-quality protein with a high protein efficiency ratio (P.E.R.) and a bioavailability rating higher than that of egg protein. *Amino 2000™ is prepared to ensure the highest potency, freshness, and maximum nitrogen availability.