- 1,250 Calories
- 50g Blended protein
- Over 250g carbohydrates with no added sugar
- Enhanced with creatine, glutamine, and glutamine peptides
- 25 Vitamins and essential minerals
Optimum Nutrition Serious Mass is the ultimate in weight gain formulas. With 1,250 calories per serving and 50 grams of protein, this instantized powder makes the ideal post-workout and between meals shake for sizing up your goals. Optimum Nutrition Serious Mass provides you with the tools you need to pack on the pounds and - when coupled with serious weight room effort - develop your physique to the fullest. Adding calories has never been this easy or tasted so good.
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