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Optimum Nutrition

ON Serious Mass

ON Serious Mass

Regular price $139.99
Regular price Sale price $139.99
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  • 1,250 Calories per Serving to Help Support a Calorie Surplus
  • 50 Grams of Blended Protein per Serving to Help Build and Maintain Muscle
  • 252-254 Grams of Carbohydrates (with no added sugar) to Help Fuel Workouts
  • 3g Creatine Monohydrate with added Creatine
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  • Ingredients
  • Nutritional Information

To gain weight, you need to consume more calories than you expend. For many aspiring to hit their calorie goals and put on size, a highly active metabolism, weak appetite or on-the-go lifestyle can make it a real challenge to get enough calories from food alone.
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.

  • 1,250 Calories per Serving to Help Support a Calorie Surplus
  • 50 Grams of Blended Protein per Serving to Help Build and Maintain Muscle
  • 252-254 Grams of Carbohydrates (with no added sugar) to Help Fuel Workouts
  • 3g Creatine Monohydrate with added Creatine

Please refer to the nutrition panel.