Optimum Nutrition Serious Mass

About this product

High-calorie weight gainer providing up to 1,250 calories, 50g of protein, 252g of carbohydrates, and 25 vitamins and minerals per serving. Includes 5g of creatine monohydrate and 8g of naturally occurring glutamine for serious size and mass gains.

• Protein

  Whey Protein Concentrate90% absorbed

  50 g

• Carbohydrate

  Maltodextrin98% absorbed

  252 g

• Creatine Monohydrate

  Creatine Monohydrate15% absorbed

  5 g

  Range: 3000–5000 mg

• Glutamine

  L-Glutamine95% absorbed

  8 g

  Range: 5000–20000 mg