Product Features

  • Optimum Nutrition’s Serious Mass is the ideal weight gain formul
  • Each delicious shake contains 1,250 calories, with no added sugar
  • Every serving deliverys 50 grams of blended protein to support building muscle and 250 grams of carbohydrates to fuel intense workouts & help replenish glycogen stores
  • Includes 25 Vitamins & Minerals, Creatine, Glutamine & MCT
  • Contains less than 5 grams of fat per serving

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