Essential Amino acids & 27 vital nutrients present in the supplement help in getting rid of muscle fatigue after exercise. Loaded With Protein : Muscle Doctor Hard core gainer provides carbohydrates & protein in 3:1 ratio (71g of carbs | 23g of proteins) per serving to fuel your daily need. New & Improved Formula : Enriched with digestive enzyme 5g BCAA, 5g L-Glutamine, 5g L-Lysine, 5g L-Arginine. Forget The Lumps: our mass gainer is so formulated that it readily dissolves in water or milk, no lumping or residue.