• Optimum Nutrition Serious Mass 6 lb Chocolate aids to provide 1,263 calories in every serving, which is ultimate in a weight gain formula
• It delivers 50g of blended protein per serving of 334g Optimum Nutrition Serious Mass 6 lb Chocolate comes packed with 23 essential vitamins and minerals to enhance muscle growth
• ON (Optimum Nutrition) Serious Mass 6 lb Chocolate consists of more than 250 grams of carbohydrates with no added sugar
• ON Serious Mass 6 lb Chocolate comes with the benefits of creatine, L-Glutamine and Glutamic Acid

4600.00