Description
ON serious mass is a high-calorie weight-gainer powder providing 1,250 calories, 50 grams of protein, and over 250 grams of carbohydrates per serving. It is designed for people who have a fast metabolism or struggle to gain weight, helping them build muscle and mass when paired with exercise.
Key Nutritional Facts (Per Serving)
- Calories: 1,250+ to fuel high energy needs
- Protein: 50g of blended protein for muscle repair
- Carbohydrates: 250g+ primarily from maltodextrin to support intense workouts
- Extras: Includes creatine monohydrate, glutamine, and 24 essential vitamins and mineral


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