GNC Pro Performance AMP Amplified Total Muscle Recovery 1.89lbs - Chocolate. Optimal Muscle Performance Fuel Powered with 50 g Protein, 20 g Leucine & 10g Glutamine for Maximum Post-Workout Recovery. These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease. The above statement is directly from GNC website, all credit goes to GNC.