Optimum Nutrition Serious Mass 12lbs – High-Calorie Weight Gainer

Looking to bulk up fast? Optimum Nutrition Serious Mass 12lbs is your ultimate solution for serious weight gain and muscle mass development. Packed with 1,250 calories, 50 grams of protein, and over 250 grams of carbohydrates per serving, this high-calorie formula is perfect for hard gainers and anyone struggling to add size.

Key Features:

• ✅ 1,250 Calories per Serving – Ideal for adding size and strength.

• ✅ 50g High-Quality Protein Blend – Supports muscle repair and growth.

• ✅ 250+ Grams of Carbs – Fuels intense workouts and recovery.

• ✅ Added Creatine, Glutamine & Essential Nutrients – Boosts performance and recovery.

• ✅ Vitamin & Mineral Blend – Helps support overall health and metabolism.

• ✅ No Added Sugar – Clean calories to fuel your gains.

• ✅ Delicious Flavors – Available in Chocolate, Vanilla, Strawberry, and Banana.

How to Use Serious Mass:

Serving Size: 2 heaping scoops (334g)
Directions:

• Mix with 700ml – 900ml of water or milk.

• For best results, take 1 serving post-workout or between meals.

• Beginners can start with half a serving to assess tolerance.

Who Should Use It?

• Hard gainers who struggle to gain weight

• Bodybuilders in bulking phase

• Athletes needing high-calorie support

• Individuals recovering from physical stress or illness

Why Choose Optimum Nutrition?

Optimum Nutrition (ON) is a globally trusted brand known for high-quality, science-backed supplements. With Serious Mass, you’re not just gaining weight—you’re building real muscle and strength.