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Optimum Nutrition Serious Mass 12lbs
For Muscle Building & Weight Gain Goals
1,250 Calories per Serving to Help Boost Calorie Intake ¹
50 Grams of Protein per Serving to Help Build and Maintain Muscle ¹ ³
252-254 Grams of Carbohydrates per Serving to Help Fuel Workouts ¹
For Muscle Building & Weight Gain Goals
Serious Mass is the ultimate muscle building and weight gain formula. With 1,250 calories per 2-scoop serving and 50 grams of protein to support muscle recovery, this powder makes the ideal post-workout and between meals shake for sizing up your goals. Serious Mass provides you with the tools you need to support your weight gains goals.¹
Benefits
High-Calorie Formula Supports Muscle Building³ and Weight Gain Goals¹
1,250 Calories per Serving to Help Boost Calorie Intake¹
50 Grams of Protein per Serving to Help Build and Maintain Muscle¹ ³
252-254 Grams of Carbohydrates per Serving to Help Fuel Workouts¹
3 Grams of Creatine Monohydrate per Serving
25 Vitamins & Essential Minerals