Achieve your size and strength goals with Optimum Nutrition Serious Mass – 6 lbs, the ultimate high-calorie weight gainer for serious muscle building. Designed for hard gainers and athletes looking to pack on mass, Serious Mass delivers a powerful combination of calories, protein, carbs, vitamins, and minerals to help fuel recovery and growth.
Each serving provides an incredible 1,250 calories, 50g of high-quality protein, and over 250g of carbohydrates – with zero added sugar. It also includes creatine, glutamine, and 25+ essential vitamins and minerals, making it a complete support formula for intense training and weight gain.
Just add two heaping scoops to water or milk, shake or blend, and you’ve got a delicious and effective calorie-packed shake to power your gains.
Key Benefits:
-
1,250 calories & 50g protein per serving
-
250g+ carbs for energy & muscle support
-
Includes creatine, glutamine & essential nutrients
-
Ideal for muscle gain, bulking & recovery
-
Easy to mix, rich flavor options
Take your gains to the next level with Serious Mass.
