Best Mass Gainer 2026

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Last Updated - 22.07.2026

Best Choice

01

Optimum Nutrition

Optimum Nutrition Serious Mass 2025 Weight Gainer Powder, Chocolate Flavour, 5.34 kg, 16 Servings

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9.8

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Versatile weight gainer: ideal for after training or between meals, to support muscle building and weight gain. Simply mix 2 measuring spoons with 24 ounces of water.
50 g whey protein per serving: to support the growth and maintenance of muscle mass.
3G added creatine per serving: to support improved performance during high-intensity training. Also contains 25 essential vitamins and minerals to support health.
251G CARBOHYDRATE PER PORTION: supports muscle recovery and replenishes glycogen stores after intensive training.
1,250 KCAL PER PORTION:* Delivers 1,250 calories to achieve a calorie surplus, which is essential for weight gain and muscle building. *Approx. and may vary depending on taste.

71,00 €
Value for Money

02

Optimum Nutrition

Optimum Nutrition Serious Mass Protein Powder High Calorie Mass Gainer with Vitamins, Creatine and Glutamine, Chocolate, 16 Servings, 5.45kg, packaging may vary

21% Off

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9.6

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

To prepare the Weight Gainer, mix 2 measuring spoons with 710 ml of water or plant milk, add fruit or nut butter for a tasty and high-calorie protein smoothie after exercise or between meals
Source EFSA Journal * 2010;8(10):1811; 2011;9(6):2203; ** 2011;9(7):2303; *** 2011; 9(7):2305
Serious Mass protein powder is available in 6 flavours (banana, chocolate peanut butter, chocolate, cookies and cream, strawberry and vanilla) and contains sweetener
Protein powder formula without added sugar with 25 vitamins and minerals and less than 5 g of fat per serving, plus over 250 g of carbonic hydrates to support muscle regeneration***
Low-fat Mass Gainer with over 1250 calories and 50 g protein per serving to support muscle growth plus* 3 g creatine monohydrate to support performance**

67,06 € 84,99 €(21% Off off)
03

Optimum Nutrition

Optimum Nutrition Serious Mass 2025 Weight Gainer Powder, Vanilla Flavour, 2.66 kg, 8 Servings

21% Off

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9.4

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

Versatile weight gainer: ideal for after training or between meals, to support muscle building and weight gain. Simply mix 2 measuring spoons with 24 ounces of water.
50 g whey protein per serving: to support the growth and maintenance of muscle mass.
3G added creatine per serving: to support improved performance during high-intensity training. Also contains 25 essential vitamins and minerals to support health.
251G CARBOHYDRATE PER PORTION: supports muscle recovery and replenishes glycogen stores after intensive training.
1,250 KCAL PER PORTION:* Delivers 1,250 calories to achieve a calorie surplus, which is essential for weight gain and muscle building. *Approx. and may vary depending on taste.

39,59 € 49,99 €(21% Off off)
04

Optimum Nutrition

Optimum Nutrition Serious Mass Protein Powder High Calorie Mass Gainer with Vitamins, Creatine and Glutamine, Chocolate, 8 Servings, 2.73kg, packaging may vary

19% Off

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9.2

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Supplied as instant powder. Simply mix with water for a delicious and calorie-rich post-workout drink or take it between meals to promote muscle growth.
Provides calories: promotes muscle mass increase and replenishes the body's glycogen stores.
Packaging can vary: updated look, same trusted quality.
No added sugar. Contains 24 vitamins and minerals per serving.
Muscle-building preparation with 1,250 calories and 50 g of protein per serving and less than 5 g of fat.
Great value for money: Serious Mass protein powder has a high calorie content and contains high-quality protein.

40,71 € 49,99 €(19% Off off)
05

Optimum Nutrition

Optimum Nutrition Serious Mass Protein Powder High Calorie Mass Gainer with Vitamins, Creatine and Glutamine, Vanilla, 8 Servings, 2.73kg, packaging may vary

19% Off

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9.1

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Supplied as instant powder. Simply mix with water for a delicious and calorie-rich post-workout drink or take it between meals to promote muscle growth.
Provides calories: promotes muscle mass increase and replenishes the body's glycogen stores.
Packaging can vary – updated look, same trusted quality.
No added sugar: Contains 24 vitamins and minerals per serving.
Muscle-building preparation with 1,250 calories and 50 g of protein per serving and less than 5 g of fat.
Great value for money: Serious Mass protein powder has a high calorie content and contains high-quality protein.

40,73 € 49,99 €(19% Off off)
06

Optimum Nutrition

Optimum Nutrition Serious Mass Protein Powder High Calorie Mass Gainer with Vitamins, Creatine and Glutamine, Strawberry, 16 Servings, 5.45kg, packaging may vary

33% Off

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8.8

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

Supplied as instant powder. Simply mix with water for a delicious and calorie-rich post-workout drink or take it between meals to promote muscle growth.
Provides calories: promotes muscle mass increase and replenishes the body's glycogen stores.
Packaging can vary: updated look, same trusted quality.
No added sugar. Contains 24 vitamins and minerals per serving.
Muscle-building preparation with 1,250 calories and 50 g of protein per serving and less than 5 g of fat.
Great value for money: Serious Mass protein powder has a high calorie content and contains high-quality protein.

59,99 € 89,99 €(33% Off off)
07

Optimum Nutrition

Optimum Nutrition Serious Mass Protein Powder High Calorie Mass Gainer with Vitamins, Creatine and Glutamine, Banana, 8 Servings, 2.73 kg, packaging may vary

22% Off

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8.7

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

Supplied as instant powder. Simply mix with water for a delicious and calorie-rich post-workout drink or take it between meals to promote muscle growth.
Provides calories, promotes muscle mass increase and replenishes the body's glycogen stores.
No added sugar. Contains 24 vitamins and minerals per serving.
Muscle-Building preparation with 1,250 calories and 50 g of protein per serving and less than 5 g of fat!
Great value for money. Serious Mass protein powder has a high calorie content and contains high-quality protein.

39,12 € 49,99 €(22% Off off)
08

Mutant

PVL Mutant Mass Weight Gain Shake Powder, Vanilla, 6800 g

21% Off

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8.4

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Hardcore calories for muscle building – Delivers an incredible 1,100 nutrient-rich calories per serving to support fast muscle growth and strength gain.
Elite carb sources from fully quality food – with complex carbohydrates from sweet potatoes, oatmeal and wax corn starch for clean, long-lasting energy.
Designed for extreme results – This gainer has been developed for athletes who want to break through plateaus and delivers high-quality macros without unnecessary fillers.
Amino acid and recovery support – contains 36 g of essential amino acids (EAAs), including 10.4 g glutamine and 12.2 g BCAAs, for the repair and growth of muscles.
Advanced protein formula – contains whey protein isolate, hydrolyzed whey protein, micellar casein and milk protein concentrate to support regeneration and build fat-free mass.

63,47 € 79,95 €(21% Off off)
09

Mammut

Mammut Nutrition Crash Weight Gainer Powder Chocolate - 1.4 kg - 518 kcal/shake for weight gain - 80% carbohydrates - 4-component protein - Ideal for endurance and performance athletes

17% Off

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8.3

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Ideal for endurance and professional athletes.
High carbohydrate content with 80% carbohydrates (vanilla).
Contribution to weight gain.
3-component carbohydrate complex and 4-component protein complex.
1410 kcal per 3 shakes.

20,69 € 24,99 €(17% Off off)
10

Dymatize

Dymatize Super Mass Gainer Rich Chocolate 2943g - Weight Gainer Powder + Carbohydrates, BCAAs and Casein

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8.2

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Specially developed for body builders, hard gainers and powerlifters and your special requirements - especially in construction, the protein weight gainer ensures an adequate calorie supply and nutrient intake
Per serving, the Super Mass Gainer provides you with up to 243 g carbohydrates, 52 g protein, 11-12 g BCAAs and 3 g fine creapure creatine as well as 5 contained vitamins that contribute to a reduction of fatigue
Our solid combination of creatine, carbohydrates, BCAAs and proteins provides valuable nutrients to meet the special requirements in the building phase
For ideal results in weight gain daily after training, mix a portion with 700 ml of water. The mass protein shake is gluten-free and also suitable for vegetarians
According to the informed choice, all substances in the Mass Gainer powder meet the highest standards - so athletes are protected over product quality, especially during the competition period

49,99 €