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Load image into Gallery viewer, OPTIMUM NUTRITION Serious Mass Protein | 5.44kg
Load image into Gallery viewer, OPTIMUM NUTRITION Serious Mass Protein | 5.44kg
Load image into Gallery viewer, OPTIMUM NUTRITION Serious Mass Protein | 5.44kg
Load image into Gallery viewer, OPTIMUM NUTRITION Serious Mass Protein | 5.44kg
Load image into Gallery viewer, OPTIMUM NUTRITION Serious Mass Protein | 5.44kg
Load image into Gallery viewer, OPTIMUM NUTRITION Serious Mass Protein | 5.44kg

OPTIMUM NUTRITION Serious Mass Protein | 5.44kg

Regular price $149.95
Sale price $149.95 Regular price
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Maximise Your Muscle Gains with Serious Mass!

Achieve your weight and muscle-building goals with Serious Mass, the ultimate weight gainer for serious athletes and hard gainers. Packed with 1,250 calories per 2-scoop serving, 50 grams of quality protein, and 252-254 grams of complex carbs, this high-calorie formula is designed to fuel intense workouts and support a calorie surplus without added sugar. Plus, it includes 3g of creatine monohydrate and 20 essential vitamins and minerals, making it an ideal post-workout or between-meal shake to help you pack on mass.

Why Choose Serious Mass?

  • Calorie-Dense for Results: 1,250 calories per serving for maximum weight gain
  • 50g of Protein: Supports muscle repair and growth
  • Complex Carbohydrates: 252-254 grams for energy and glycogen replenishment
  • Added Creatine: Boosts strength and power during intense training
  • Vitamin & Mineral Blend: Helps support overall health and recovery

Perfect for:

  • Those struggling to reach calorie targets from food alone
  • Athletes seeking extra mass and muscle growth
  • Busy lifestyles needing a convenient, nutrient-dense shake

How to Use
Blend 2 scoops with 700-720ml of cold water or milk. Add fruits, peanut butter, or other ingredients for extra calories. New users may start with a half-serving (1 scoop). Take post-workout or between meals for best results.