ON Serious Mass Weight Gainer 12lb

Optimum Nutrition Serious Mass is a premium weight gainer supplement designed to help athletes and bodybuilders increase muscle mass and achieve their weight gain goals. Each serving provides 1,252 calories, 50g of protein, and 254g of carbohydrates to support muscle building and recovery. Key features: • 1,252 calories per serving • 50g protein blend for muscle growth • 254g carbohydrates for energy and weight gain • Formulated as a sports nutrition supplement • 12 pound total package size • Chocolate flavor Serious Mass is specifically formulated as a high-calorie weight gain powder to help hard gainers pack on mass when they struggle to consume enough calories through food alone. The protein and carbohydrate blend helps fuel intense workouts while supporting muscle recovery and growth. This product is ideal for athletes looking to increase their overall caloric intake in a convenient way.