Mass Gainer

(7979) Read Reviews
  • Built for bulking
  • Increase muscle mass and support weight gain
  • Over 500 calories and up to 43g protein
£19.99£12.99
This product is exempt from discounts
Flavour
Banana
Chocolate
Chocolate Caramel
Chocolate Cookies
Cinnamon Cereal Milk
Strawberry
Vanilla
Size
1kg
2.5kg
5kg
Free Delivery on orders over £39.00
Order now for delivery on Friday
Standard* Order Value Price
2-3 days Over £39 Free
2-3 days Under £39 £3.95
Express* Order Value Price
Next Working Day Over £49 £2.95
Next Working Day Under £49 £5.49

*When orders are placed before 20:45


BUILD STRENGTH FOR REAL RESULTS

The ultimate way to build serious muscle¹, Mass Gainer is powered by up to 43g protein per serving. It’s our most-popular weight-gain formula that helps you achieve the growth you want.

Mass Gainer is a 4.4-star favourite among over 2,000 customers — “Helped me up my calories intake & put on consistent weight while I’m bulking”

PRODUCT SUMMARY

Build and maintain muscle mass² with a powerful formula packed with over 500 calories per serving. Perfect for intense bulking programmes, it combines premium proteins, high-quality carbs and added leucine. 

Make it your weapon to gain serious weight.

BULK QUALITY PROMISE

Our Mass Gainer is designed for effective bulking, made with premium quality proteins, carbs, and leucine. It’s built to fuel muscle growth with the best ingredients.

Our expert team is made of athletes, scientists and nutritionists. We use advanced equipment in our state-of-the-art facility to guarantee our products meet the highest standards. Every product is thoroughly tested by gym-goers to make sure you get the best experience with Bulk.

KEY PRODUCT BENEFITS

  • Build and maintain muscle
  • See serious gains 
  • Fuel up 
  • Taste the gains  


¹Protein contributes to a growth in muscle mass.  

²Protein contributes to the maintenance of muscle mass.

THE SCIENCE BEHIND THE PRODUCT

Mass gainer shakes are high-calorie nutritional supplements designed to help people increase their daily calorie intake — especially useful for those who find it difficult to gain weight or build muscle through food alone. This makes them very popular for gym-goers with a fast metabolism and anyone with a small appetite in the morning. High quality gainers typically contain a balanced ratio of protein and carbohydrates to support increased energy intake.

Most mass gainers include a mix of fast- and slow-digesting proteins, such as whey protein concentrate (fast) and milk protein concentrate (slower). This combination provides a steady release of amino acids to the body over time.

Instead of relying on sugar-based carbohydrates, most high-quality formulas rely on  ingredients like fine oats. These provide a more sustained energy release and avoid a short term spike in blood sugar. Mass gainer shakes are generally recommended for individuals with higher energy needs — such as athletes or anyone on a structured bulking plan. They’re also useful when it’s challenging to meet calorie requirements through whole foods alone.

THE EXPERT'S OPINION

"Formulated with your goals in mind. Mass Gainer is a rich source of protein and carbs - but from quality sources. No fillers or added sugars in our Mass Gainer, making it a great addition to your diet when training to gain muscle mass" - Rowan Cooke, Head of Innovation

7979 reviews

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