Optimum Nutrition Serious Mass Strawberry 2.73kg

Serious Mass – High Calorie Weight Gainer for Real Size

Serious Mass is designed for one goal:

helping you gain size when food alone isn’t enough.

If you struggle to eat enough, have a fast metabolism, or simply can’t stay in a calorie surplus — this is the easiest way to push your intake up and start growing.

Each serving delivers a powerful blend of calories, protein, carbs, and creatine to support muscle growth, recovery, and performance.

Key Benefits

• 1,250 calories per serving to boost daily intake

• 50g high-quality protein to support muscle growth

• 250g+ carbohydrates for energy and recovery

• 3g creatine added to support strength & performance

• Ideal for hard gainers & bulking phases

Who Is It For?

Perfect for:

• Hard gainers struggling to gain weight

• Busy individuals who can’t eat enough

• Anyone in a calorie surplus / bulking phase

• Lifters looking to increase size and strength

How to Use

Add 2 heaped scoops (335g) to ~700ml water or milk

Blend for 30–45 seconds

• Use post-workout

• Or between meals to increase calorie intake

Why It Works

If you’re not gaining weight, you’re not eating enough — simple.

Serious Mass makes it easy to hit your calories consistently, helping you build size, recover faster, and progress properly.

⚠️ May contain traces of gluten, eggs, nuts, and peanuts.

Use as part of a balanced diet and structured training plan.