Optimum Nutrition Serious Mass – Ultimate Weight Gainer for Size, Strength & Muscle Growth
Transform Your Physique with the #1 Mass Gainer in the World
Struggling to gain weight or build muscle? Optimum Nutrition Serious Mass is your ultimate solution for achieving serious size, serious strength, and serious results.
Engineered by the world’s most trusted sports nutrition brand, Serious Mass delivers a powerful blend of calories, protein, carbohydrates, vitamins, and minerals — everything your body needs to grow bigger and stronger.
Each serving packs a massive calorie boost, helping you meet your daily calorie surplus and fuel intense training sessions for visible, long-lasting muscle gains.
💪 Why Choose Optimum Nutrition Serious Mass?
If you’ve been working hard in the gym but struggling to see size gains, ON Serious Mass gives you the nutritional advantage you need.
It’s more than just a weight gainer — it’s a complete muscle-building formula that combines high-quality protein, complex carbs, and essential micronutrients to support muscle recovery, strength, and endurance.
With 50g of premium protein, over 250g of carbohydrates, and more than 1,250 calories per serving, Serious Mass provides everything your body needs to bulk up cleanly and efficiently.
⚡ Key Benefits
🏋️♂️ Supports Rapid Weight & Muscle Gain – Provides a high-calorie blend to help you gain size and strength effectively.
💥 50g of Protein per Serving – Fuels muscle growth and recovery after intense workouts.
🔥 1,250+ Calories per Serving – Ensures a calorie surplus to support lean mass gain.
⚡ 250g+ Complex Carbohydrates – Restores glycogen levels and delivers sustained energy.
🧠 Rich in Vitamins & Minerals – Helps support overall health, metabolism, and immunity.
🥤 Delicious & Easy to Mix – Available in rich flavors like Chocolate, Vanilla, and Banana for enjoyable nutrition.
🧪 Nutritional Profile (Per 2 Scoops Serving)
| Nutrient | Amount | Benefits |
|---|---|---|
| Calories | 1,250+ | Provides the energy needed for muscle recovery and growth. |
| Protein | 50g | Supports lean muscle synthesis and repair. |
| Carbohydrates | 250g | Fuels intense workouts and promotes muscle fullness. |
| Sugars | <20g | Balanced sweetness without excess sugar load. |
| Fat | 5g | Provides sustained energy and supports hormone production. |
| Vitamins & Minerals | 25+ | Supports immunity, metabolism, and recovery. |
| Creatine, Glutamine & MCTs | Added | Enhance endurance, strength, and recovery. |
This powerhouse combination of macronutrients and micronutrients ensures your body gets complete nutrition for consistent and healthy weight gain.
🏆 What Makes Serious Mass Stand Out
✅ Trusted Global Brand – Optimum Nutrition (ON)
✅ High-Calorie Formula for Hard Gainers
✅ Balanced Blend of Protein, Carbs & Nutrients
✅ No Added Sugars or Artificial Fillers
✅ Supports Muscle Recovery, Energy & Strength
✅ Available in Delicious, Easy-to-Mix Flavors
Whether you’re an ectomorph (hard gainer) or an athlete looking to pack on quality mass, Serious Mass is built to help you achieve your body transformation goals faster and healthier.
⚙️ How to Use Optimum Nutrition Serious Mass
Add 2 heaping scoops (334g) of Serious Mass to 700ml–900ml of water or milk in a blender.
Blend for 45–60 seconds until smooth.
Consume 1–2 servings daily, depending on your calorie needs.
💡 Pro Tips:
Take 1 serving post-workout for muscle recovery.
Use another serving between meals or before bed to maintain a steady calorie intake.
Combine with regular strength training and a balanced diet for best results.
👤 Who Should Use Serious Mass
🧑🤝🧑 Hard Gainers – Ideal for individuals who find it difficult to put on weight.
🏋️♂️ Bodybuilders & Athletes – To increase muscle size, strength, and recovery.
💪 Fitness Enthusiasts – To support lean mass and post-workout recovery.
🧑💼 Busy Professionals – A convenient high-calorie shake for daily nutrition support.
🌿 Clean, Safe & Certified Quality
✅ No Banned Substances
✅ Tested for Purity & Potency
✅ Non-GMO & Gluten-Free
✅ Produced in GMP & HACCP Certified Facilities
Optimum Nutrition Serious Mass meets the highest safety standards, ensuring every serving delivers clean, powerful nutrition you can trust.
⚙️ Performance Timeline
| Timeline | Expected Results |
|---|---|
| Week 1–2 | Improved strength, appetite, and calorie intake. |
| Week 3–4 | Noticeable weight gain and increased muscle fullness. |
| Week 5–8 | Steady increase in muscle mass, power, and endurance. |
| Beyond 8 Weeks | Consistent progress with improved recovery and physique. |
🏋️♂️ Optimum Nutrition Serious Mass – Get Bigger, Stronger, and More Powerful
With its powerful protein-carbohydrate blend and 1,250+ calories per serving, Optimum Nutrition Serious Mass gives you everything your body needs to build real, solid muscle mass.
It’s not just a gainer — it’s the ultimate solution for anyone serious about results.
🔥 Serious Mass by ON – The Fuel for Serious Growth.
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