Optimum Nutrition - Serious Mass

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Pack on some serious mass with Optimum Nutrition Serious Mass protein powder. This weight gainer formula contains 50 grams of protein per serving to help you achieve your gains. Made with a high-quality protein blend, this formula has added creatine and glutamine for optimal performance and results.

Because you can only consume so much food, Optimum Nutrition have produced this weight gain formula for those people looking to pack on some serious mass. Make no mistake this is a beast of a weight gainer because a serving of this will deliver 1250 calories from 50 grams of protein and more than 250 grams of carbohydrates.

The good news is there's no sugar added to the formula but there is creatine and glutamine alongside 25 vitamins and minerals. What you're getting here are high quality calories in a tasty mass building shake.

Key Benefits

  • Muscle mass gains
  • 1250 calories per serve
  • High value proteins