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The Ultimate High-Calorie Formula for Serious Muscle Gains
Packing on size is a challenge for many, especially those with fast metabolisms or demanding training schedules. Optimum Nutrition Serious Mass is the ultimate weight gain formula designed to help "hardgainers" and athletes reach their caloric goals with ease. If you’ve struggled to consume enough quality calories through whole foods alone, this nutrient-dense shake provides the heavy-duty support you need to transform your physique.
Massive Calories for Maximum Bulk
To gain weight, you must be in a caloric surplus. Every serving of Serious Mass delivers a powerhouse of 1,250 calories and 50g of a premium protein blend to support muscle repair and growth. With over 250g of energy-sustaining carbohydrates and no added sugar, this formula provides the fuel necessary to power through intense workouts and fully replenish glycogen stores, ensuring your body stays in an anabolic state.
Enhanced Recovery and Immune Support
Serious Mass goes beyond basic weight gainers by prioritizing your overall health. It is fortified with 25 essential vitamins and minerals, including Vitamin C, Vitamin D, and Zinc, to provide vital immune support. Training hard puts stress on your body; these added nutrients help keep your defenses strong so you can stay consistent. Additionally, the inclusion of Creatine Monohydrate and Glutamine supports strength, power, and faster post-workout recovery.
100% Authentic
Fast Shipping
14-Day Returns
The Ultimate High-Calorie Formula for Serious Muscle Gains
Packing on size is a challenge for many, especially those with fast metabolisms or demanding training schedules. Optimum Nutrition Serious Mass is the ultimate weight gain formula designed to help "hardgainers" and athletes reach their caloric goals with ease. If you’ve struggled to consume enough quality calories through whole foods alone, this nutrient-dense shake provides the heavy-duty support you need to transform your physique.
Massive Calories for Maximum Bulk
To gain weight, you must be in a caloric surplus. Every serving of Serious Mass delivers a powerhouse of 1,250 calories and 50g of a premium protein blend to support muscle repair and growth. With over 250g of energy-sustaining carbohydrates and no added sugar, this formula provides the fuel necessary to power through intense workouts and fully replenish glycogen stores, ensuring your body stays in an anabolic state.
Enhanced Recovery and Immune Support
Serious Mass goes beyond basic weight gainers by prioritizing your overall health. It is fortified with 25 essential vitamins and minerals, including Vitamin C, Vitamin D, and Zinc, to provide vital immune support. Training hard puts stress on your body; these added nutrients help keep your defenses strong so you can stay consistent. Additionally, the inclusion of Creatine Monohydrate and Glutamine supports strength, power, and faster post-workout recovery.