Advertising Disclosure Mass Gainers Comparison - April 2026
7 Best Mass Gainers In the UK
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant's customer service levels, popularity trends, and more. The rankings reflect our opinion and should be a good starting point for shopping. As an Amazon Associate we may earn from qualifying purchases. We may receive a commission from purchases made through links on our site, which will help us continue to provide you with value.
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| 1 Best Choice  9.9Exceptional | 2 9.8Exceptional | 3  9.7Exceptional | 4  9.4Excellent | 5 Best Value 9.3Excellent | 6  9.2Excellent | 7 8.9Very Good |
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ModelOptimum Nutrition Serious Mass Protein Powder High Calorie Mass Gainer with Vitamins, Creatine and Glutamine, Chocolate, 16 Servings, 5.45 kg | Model Optimum Nutrition Serious Mass Protein Powder High Calorie Mass Gainer with Vitamins, Creatine and Glutamine, Chocolate, 16 Servings, 5.45 kg | Model Optimum Nutrition Serious Mass Protein Powder High Calorie Mass Gainer with Vitamins, Creatine and Glutamine, Banana, 16 Servings, 5.45 kg, Packaging May Vary | Model Optimum Nutrition Serious Mass Protein Powder High Calorie Mass Gainer with Vitamins, Creatine and Glutamine, Strawberry, 8 Servings, 2.73 kg, Packaging May Vary | Model Optimum Nutrition Serious Mass Protein Powder High Calorie Mass Gainer with Vitamins, Creatine and Glutamine, Banana, 16 Servings, 5.45 kg, Packaging May Vary | Model Optimum Nutrition Serious Mass Protein Powder High Calorie Mass Gainer with Vitamins, Creatine and Glutamine, Vanilla, 8 Servings, 2.73 kg, Packaging May Vary | Model Optimum Nutrition Serious Mass Protein Powder High Calorie Mass Gainer with Vitamins, Creatine and Glutamine, Strawberry, 8 Servings, 2.73 kg, Packaging May Vary |
BrandOptimum Nutrition | Brand Optimum Nutrition | Brand Optimum Nutrition | Brand Optimum Nutrition | Brand Optimum Nutrition | Brand Optimum Nutrition | Brand Optimum Nutrition |
Reviews | Reviews | Reviews | Reviews  | Reviews | Reviews | Reviews  |
Features | ||||||
Worth the money 8.9 | Worth the money 8.9 | Worth the money 8.4 | Worth the money 8.9 | Worth the money 8.4 | Worth the money 8.9 | Worth the money 8.9 |
Serving size 9.1 | Serving size 9.1 | Serving size 8.6 | Serving size 9.1 | Serving size 8.6 | Serving size 9.1 | Serving size 9.1 |
Taste 9.1 | Taste 9.1 | Taste 8.9 | Taste 8.6 | Taste 8.9 | Taste 8.6 | Taste 8.6 |
Tech Specs | ||||||
product dimensions29.21 x 13.97 x 40.64 cm 5.44 kg | product dimensions 29.21 x 13.97 x 40.64 cm 5.44 kg | product dimensions 29.21 x 13.97 x 40.64 cm 5.45 kg | product dimensions 20.32 x 20.32 x 25.7 cm; 2.72 kg | product dimensions 29.21 x 13.97 x 40.64 cm 5.45 kg | product dimensions 20.47 x 20.47 x 26.39 cm 2.72 kg | product dimensions 20.32 x 20.32 x 25.7 cm; 2.72 kg |
Available On | Available On | Available On | Available On | Available On | Available On | Available On |
Our Top 3 Picks
Here are the top 3 recommended products with more information to help you find the right product for you
9.9
1Optimum Nutrition12% OffOptimum Nutrition Serious Mass Protein Powder High Calorie Mass Gainer with Vitamins, Creatine and Glutamine, Chocolate, 16 Servings, 5.45 kg
9.1 Serving size9.1 Taste8.9 worth the moneyWhy we love it
High-calorie formula supports muscle growth.
Includes creatine for enhanced performance.
Versatile flavors for personalized taste.
-
9.8
2Optimum Nutrition21% Off
Optimum Nutrition Serious Mass Protein Powder High Calorie Mass Gainer with Vitamins, Creatine and Glutamine, Chocolate, 16 Servings, 5.45 kg
9.1 Serving size9.1 Taste8.9 worth the moneyWhy we love it
High-calorie formula supports muscle growth.
Includes creatine for enhanced performance.
Versatile flavors for personalized taste.
-
9.7
3Optimum Nutrition22% Off
Optimum Nutrition Serious Mass Protein Powder High Calorie Mass Gainer with Vitamins, Creatine and Glutamine, Banana, 16 Servings, 5.45 kg, Packaging May Vary
8.9 Taste8.6 Serving size8.4 worth the moneyWhy we love it
The product is mass gainer protein powder which is designed to help people gain weight.
It contains 1250 calories and 50 grams of protein per serving.
It is an instantised powder which means it is easy to mix with other food or drinks.
Our ranking system
The topchoice.co.uk Team selects top-of-the-line items from a wide selection and conducts rigorous evaluations on almost all the products available on the internet. We rank each product based on how well it matches our criteria.We can ensure that the product is well-tested with the help of our expertise, experts, and artificial intelligence technology. topchoice.co.uk requires consistent care for the products we review, ensuring that our assessments are always accurate and up to date.
Features
Our team of experts analyzes key attributes, capabilities, significance, and many more depending on the type of product to determine its effectiveness.
Consumer Reviews
We ensure an evaluation of the ratings using references all over the internet for each product. With the help of our AI technology and professional review teams, we give weight to the worth of individual user experiences.
Popularity
Popularity is an important criterion in choosing a product. Several factors contribute to the popularity of the products on our site, including prestige, relevance, reputation, news, and more.
Value for money
topchoice.co.uk compares product attributes to price, examines tech specs, ratings and reviews, and more.When compared to other criteria, does the pricing seem reasonable? In order to provide genuine value for money, our team must answer that question with advanced calculations.
Value for money
topchoice.co.uk compares product attributes to price, examines tech specs, ratings and reviews, and more.When compared to other criteria, does the pricing seem reasonable? In order to provide genuine value for money, our team must answer that question with advanced calculations.
