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Optimum Nutrition Serious Mass – Weight Gain Powder

Fuel Your Gains the Right Way Looking to bulk up, build muscle, or recover better after intense workouts? Optimum Nutrition Serious Mass is your ultimate partner in the journey toward serious size and strength. Packed with high-quality calories, muscle-building protein, and essential nutrients, this premium weight readmore ...

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Fuel Your Gains the Right Way

Looking to bulk up, build muscle, or recover better after intense workouts? Optimum Nutrition Serious Mass is your ultimate partner in the journey toward serious size and strength. Packed with high-quality calories, muscle-building protein, and essential nutrients, this premium weight gain powder helps you achieve your fitness goals when regular meals just aren’t enough.

Why Choose Serious Mass?

  • 1,250 Calories Per Serving
    Perfect for hard gainers and those with a fast metabolism who need more calories to build mass.

  • 50g of Blended Protein
    A combination of whey protein concentrate, calcium caseinate, and egg whites supports sustained muscle growth and recovery.

  • 252g of Carbohydrates
    Provides a clean energy source to replenish glycogen stores and fuel intense workouts.

  • Vitamins & Minerals
    Fortified with over 25 essential vitamins and minerals to support overall health and immunity during muscle growth.

  • Creatine, Glutamine & More
    Includes proven performance ingredients to enhance endurance, recovery, and muscle cell volume.

  • Delicious Flavors Available
    Comes in Chocolate, Vanilla, Strawberry, Banana, and Cookies & Cream — mix easily with water or milk.

How to Use

Mix 2 heaping scoops (334g) with 24 oz of cold water or milk. Consume post-workout, between meals, or before bed — anytime you need a high-calorie boost.

Who Is It For?

  • Hardgainers

  • Athletes in a Bulking Phase

  • Fitness Enthusiasts Needing Extra Calories

  • People with High-Calorie Needs Due to Metabolism or Activity

Pro Tips:

  • Add a scoop to smoothies with peanut butter, banana, or oats for an extra calorie-dense shake.

  • Use a blender for best consistency.

Related Products You May Also Like

  1. Optimum Nutrition Gold Standard Whey – For lean muscle maintenance between heavy meals.

  2. BSN True Mass 1200 – Another high-calorie gainer for serious mass goals.

  3. Dymatize Super Mass Gainer – Contains digestive enzymes for better absorption.

  4. Optimum Nutrition Micronized Creatine Monohydrate – Add to your shake for improved strength and endurance.

  5. BlenderBottle Classic V2 Shaker – Perfect for on-the-go mixing.

Make Your Gains Count

With Optimum Nutrition Serious Mass, you're not just getting calories — you're getting a comprehensive solution designed to help you build, recover, and grow. Whether you're a beginner looking to bulk up or a seasoned athlete in your off-season, this is the fuel your body needs.