• 1,250 Calories per serving to help boost calorie intake
• 50 grams of protein per serving to help build and maintain muscle
• Ultimate in weight gain formula

Optimum Nutrition Serious Mass Protein Powder Chocolate Peanut Butter 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.

• Supports muscle building and weight gain goals
• Helps boost calorie intake
• Formula packed with calories that count during recovery
• 252-254 grams of carbohydrates per serving to help fuel workouts

• Mix 2 scoops of the powder into 24 fluid ounces of cold water or milk using an electric blender.
• This allows to you add in fruits, peanut butter and other calorie contributing foods.
• TIP: New users should start with a 1 – scoop half serving.
• Use post-workout and/or between meals to add calories, carbs and protein to your healthy, balanced diet