Serious Mass
by Optimum Nutrition
Calories that count: a high-protein, high-carb formula built for serious muscle and weight gain.
- Up to 50g protein per serving
- Low fat — under 3g per 100g
- High calorie for bulking phases
- For shakes, smoothies, baking and more
Best price today
Awaiting restockT-Nutrition
Verified retailer
5.4kg · Banana
£54.99
£1.02 / 100g
Secure retailer checkout
Price checked this weekCompared across 1 retailer
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Nutritional profile
What's inside
Values per 100g
15g protein
50.3g per 335g serving
75g carbohydrates
251.3g per 335g serving
2g fat
6.4g per 335g serving — very lean
376 kcal
1260 kcal per 335g serving
15g protein
50.3g per 335g serving
75g carbohydrates
251.3g per 335g serving
2g fat
6.4g per 335g serving — very lean
376 kcal
1260 kcal per 335g serving
Frequently asked questions
Where is the cheapest place to buy Optimum Nutrition Serious Mass in the UK?
Based on today's prices, T-Nutrition is the cheapest at £1.02 per 100g for the 5.4kg bag. WheyWise checks prices weekly across 1 UK retailer stocking this product.
How much protein does Serious Mass contain per 100g?
Serious Mass contains 15g of protein per 100g, with 50.3g per 335g serving. It is a mass gainer product.
Is Optimum Nutrition Serious Mass currently in stock?
As of today, 0 out of 13 tracked variants are in stock. Stock status is updated weekly.
