Optimum Nutrition Serious Mass, Weight Gainer Protein

Optimum Nutrition Serious Mass – High-Calorie Weight Gainer for Serious Results

Take your muscle-building journey to the next level with Serious Mass, the ultimate high-calorie mass gainer from Optimum Nutrition – The Gold Standard of Quality.

Each 2-scoop serving delivers:
• Over 1,200 calories to fuel growth
• 50 grams of premium blended protein to support muscle recovery
• More than 250 grams of carbohydrates for energy and replenishment
• 3 grams of Creatine Monohydrate to enhance strength and performance
• 20+ essential vitamins and minerals, including Vitamin C and Zinc for immune support

Perfect for athletes and hard gainers, Serious Mass helps you build size, strength, and real results. Use a blender to customize your shake with calorie-dense ingredients like fruits, peanut butter, or oats for even more muscle-fueling power.

Informed Choice certified, banned substance tested, and trusted by athletes worldwide.

Ready to bulk up? Serious goals need Serious Mass.