Optimum Nutrition Serious Mass 12lb

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Only: $149.95

Gain some serious size with Optimum Nutrition's Serious Mass!

Optimum Nutrition Serious Mass is the ultimate muscle building and weight gain formula from one of the most reputable brands in sports nutrition. Each serving supplies 1250 calories including 250 grams of carbohydrates, 50 grams of protein, and 3 grams of creatine monohydrate, in addition to 25 vitamins and essential minerals, to increase nutritional intake and support your size-related goals. When used as a complement to a balanced diet and optimal training routine, Optimum Nutrition Serious Mass can assist you in maintaining a positive caloric balance, enhancing your ability to put on quality muscle mass and delivering the serious results you've been looking for.



  • Easily consumed high calorie formula to support muscle building and weight gain goals
  • 250-plus grams of carbohydrates per serving
  • 50 grams of protein per serving
  • Enhanced with creatine monohydrate and glutamine for muscle growth and recovery
  • 25 vitamins and essential minerals