About the Product
Optimum Nutrition Serious Mass is the ultimate high-calorie weight gain and muscle-building formula. Designed for those aiming to increase size and strength, it delivers approximately 1251 calories* per serving (varies by flavor) and 50 grams of blended protein to support recovery and muscle growth.
This vegetarian-friendly formula includes a powerful combination of carbohydrates, proteins, and essential nutrients to fuel muscle development. It also contains Creatine Monohydrate, L-Glutamine, and 24 vitamins and minerals for complete nutritional support.
Whether used post-workout or between meals, Serious Mass provides a convenient and effective way to boost your calorie intake and achieve your physique goals.
Highlights
- High-Calorie Formula: Delivers 1251 calories* per serving (flavor-dependent).
- Protein-Rich: 50g of blended protein from vegetarian sources.
- Carbohydrate Power: Over 250g of complex carbs with no added sugar.
- Added Nutrients: Creatine, Glutamine, Glutamic Acid, and MCTs for sustained energy and recovery.
- Micronutrient Support: Contains 24 essential vitamins and minerals.
- Premium Quality: Manufactured in NSF GMP-registered facilities following strict quality standards.
*Calorie value may vary by flavor. For best results, combine with a balanced diet and consistent training.
Why Choose Serious Mass?
- Massive Calorie Boost: Provides the high caloric intake needed to support extreme muscle gain and recovery.
- Muscle Growth Support: 50g of quality protein fuels muscle repair and lean mass development.
- Balanced Nutrition: Contains carbohydrates, proteins, healthy fats, and micronutrients for complete muscle nourishment.
- Vegetarian Friendly: 100% vegetarian protein blend suitable for diverse diets.
- Enhanced Performance: With Creatine and Glutamine to boost strength and recovery.
- Trusted Quality: Backed by Optimum Nutrition’s commitment to excellence and NSF GMP certification.
Serious Mass is designed for athletes and hard gainers who need extra calories and nutrients to reach their physique and performance goals.