Optimum Nutrition Serious Mass Weight Gainer Protein Powder, Vitamin C, Zinc and Vitamin D for Immune Support.
SERIOUS MASS is the ultimate muscle building and weight gain formula.
Serious Mass Gainer Powder makes the ideal post-workout shake for sizing up your goals. SERIOUS MASS provides you with the tools you need to support your weight gains goals. Per 2-scoops, you are getting:
50 Grams of Protein per Serving to Help Build and Maintain Muscle.
250+ Grams of Carbohydrates per Serving to Help Fuel Workouts.
3 Grams of Creatine Monohydrate per Serving.
25 Vitamins & Essential Minerals.