Optimum Nutrition (ON) Serious Mass Weight Gainer Protein Powder, Vitamin C and Zinc for Immune Support, Vanilla, 12 Pound

Gain serious size with Optimum Nutrition Serious Mass. This advanced weight-gainer is engineered for athletes and individuals with high energy demands who struggle to consume sufficient calories from whole foods alone. Each serving delivers up to ~1,260 calories, 50 g of high-quality protein, and over 250 g of carbohydrates, along with added creatine to support strength and performance.

Key Benefits:

• Up to ~1,260 calories per serving for a powerful calorie surplus. 

• 50 g complete protein per serving to support muscle growth and recovery. 

• ~250 g+ carbohydrates per serving to fuel intense workouts and replenish glycogen. 

• Includes creatine monohydrate and glutamine (varies by region) to support strength & recovery. 

How to Use:
Mix two heaping scoops (~335g) with ~710 ml of water or milk. Blend 30-45 seconds. Beginners may start with half a serving. Use post-workout, between meals or before bed to boost calories.