Serious Mass

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Serious Mass by Optimum Nutrition is a high-calorie weight gainer formulated for individuals aiming to increase muscle mass and overall body weight. Each two-scoop serving delivers approximately 1,250 calories, combining 50 grams of blended protein with 252–254 grams of carbohydrates to support muscle recovery and replenish glycogen stores. The inclusion of 3 grams of creatine monohydrate per serving further aids in enhancing strength and power during high-intensity activities. ​ This formula is enriched with 20 additional vitamins and minerals, including L-glutamine, to support overall health and performance. Serious Mass is available in various sizes and flavors, making it a convenient option for those with high metabolic rates, limited appetites, or busy lifestyles that make it challenging to consume sufficient calories through food alone. ​ Show more