Serious Mass Weight Gainer Protein Powder - Elite Series
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
In stock2.73kg · Serious
£40.00
£1.47 / 100g
Secure retailer checkout
No verified price on record1 in stock
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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 Weight Gainer Protein Powder - Elite Series in the UK?
The best price we have verified today is £1.47 per 100g for the 2.73kg bag, checked 17 Aug 2026. Use the buy button above to go straight to it.
How much protein does Serious Mass Weight Gainer Protein Powder - Elite Series contain per 100g?
Serious Mass Weight Gainer Protein Powder - Elite Series contains 15g of protein per 100g, with 50.3g per 335g serving. It is a mass gainer product.
Is Optimum Nutrition Serious Mass Weight Gainer Protein Powder - Elite Series currently in stock?
At the last check, 1 out of 3 tracked variants was in stock. Stock status carries the same fetch time as the price shown above, so check the retailer listing before ordering.
