Optimum Nutrition Serious Mass Protein Powder, 2.73 Kg, 8 Servings

CALORIE RICH PROTEIN SOURCE – the ultimate gainer powder which can be used post-workout or between meals SUPPORTS SERIOUS SIZE – great for those aspiring to be bigger, for those who find it hard to gain weight / muscle, or for those on the go who have high caloric needs due to intense training 1,255-1272 CALORIES per serving – when mixed with water 50 g – 53 g PROTEIN per serving 250 g+ CARBOHYDRATES per serving ADDED CREATINE, L-GLUTAMINE & GLUTAMIC ACID