Best Hardgainer Test 2026

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Last Updated - 22.07.2026

Best Choice

01

Optimum Nutrition

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

11% Off

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9.9

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):2304
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**

70,99 € 79,99 €(11% Off off)
02

Weider

WEIDER Mega Mass 4000 Weight Gainer Shake for Growth, Chocolate, with Protein, Creapure Creatine Monohydrate, Complex Carbohydrates, Vitamins and Minerals – Muscle Building Shake, 3 kg

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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

Upgrade your performance: The daily intake of 3 g creatine increases physical performance during speed strength training as part of short-term intensive physical activity.
Quality promise: Sports and health are our passion. Our mission is to provide our highly valued, loyal customers with the best possible quality products.
Optimal solution for the hard gainer: With its high-calorie and protein-rich formula, our Mega Mass 4000 Weight Gainer is the ideal complement for muscle building and weight gain.
First-class composition: Our Mega Mass 4000 is rich in high-quality protein (whey, casein, chicken egg), complex carbohydrates and important micronutrients.
Extremely delicious: Whether chocolate, vanilla or strawberry, the classic milkshake flavours have never been so delicious and creamy. The powder tastes absolutely delicious in both milk and water.

63,34 €
Value for Money

03

Mammut

Mammut Nutrition Crash Weight Gainer Powder Chocolate - 4.5 kg - 538 kcal/Shake for Weight Gain - 80% Carbohydrates - 4-Component Protein - Ideal for Endurance and Performance Athletes

19% Off

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9.7

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

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.

42,89 € 52,99 €(19% Off off)
04

Sam's

5000 Calories Per Day - Mass Weight Gainer with Whey Protein Isolate Powder - Building Food for Maximum Fast Weight Gain - Muscle Building & Mass Building Sams Ultra Hard Gainer (Vanilla 1050 g)

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9.5

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

What is special: 100% made in Germany. The weight gain powder is delicious, very easily soluble, easy and quick to prepare. By using the protein source CFM whey protein isolate, the protein/calorie powder is biologically very high quality. The protein calorie powder with over 1057 kcal per shake is considered a high-calorie additional food. The weight gain powder is easily digestible and suitable for maintaining bones, muscle mass and muscle building.
What are you looking for: Are you looking for a muscle and mass gainer with extra many calories per shake? Our calorie shake is a dietary supplement for quick gain for regeneration or weight gain for young and old. Sams Ultra Hard Gainer is high caloric, delivers up to 5000 calories a day and ensures healthy fast weight gain and muscle building at the same time. In case of weight problems, it is considered the product for gaining.
Weight gain powder: with Sams Ultra Hardgainer as a mass build-up shake, you can avoid underweight. Sams Ultra Hardgainer delivers many easily digestible calories without fibre for maximum performance and effective mass building. Also suitable for calorie deficiency, weight loss, loss of appetite in old age and the resulting physical and mental performance losses as a high-calorie drinking food (build-up costs).
WHAT IS INSIDE: The weight gainer for gaining weight contains carbohydrates such as isomaltulose, dextrose, maltodextrin, soluble fibre (oligofructose) and the best protein CFM whey protein isolate as the only amino acids source. In addition, high-quality cream fat powder as an energy carrier. It is without sweeteners, without sugar (sucrose), gluten-free, no artificial colours, no soy protein and artificial flavours.
Use: 1 serving = 150 g (8 heaped measuring spoons) of powder with 600 ml low-fat milk in a bowl and stir in. Always put the liquid in the container first and then stir in the powder or prepare in the shaker. It tastes even better in whole milk (3.5% fat). For supplementary nutrition, drink 1-5 servings per day or simply drink the personally required calorie amount as needed.

34,00 €
05

Body Attack

Body Attack Power Weight Gainer 100% Mass Building Carbohydrate Protein Powder for Muscle Building with Whey Protein Ideal for Hardgainers

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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.

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Main highlights

With whey protein and milk protein for muscle building, provides vitamins and minerals
With high BCAA content: 11,500 mg per daily serving, without aspartame and gluten-free
Power Weight Gainer from the Pro Series by Body Attack - Made in Germany
Carbohydrate protein mixture for mass building, ideal for strength athletes and hard gainers
- -

29,95 €
06

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

20% 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.

39,94 € 49,99 €(20% Off off)
07

Mammut

Mammut Nutrition Crash Weight Gainer Powder Cookies - 4.5 kg - 518 kcal/shake for weight gain - 80% carbohydrates - 4-component protein - Ideal for endurance and performance athletes

12% 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.

Show more
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.

46,72 € 52,99 €(12% Off off)
08

OLIMP SPORT NUTRITION

Olimp Labs Gain Bolic 6000 Pouch, Vanilla Flavour, 1 kg

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9.0

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

Helps to create good conditions for building muscle mass thanks to protein
Designed to supplement the daily diet with high-quality proteins and carbohydrates, amino acids (including BCAA), creatine and taurine
An excellent addition to a balanced diet of professional and physically active amateur athletes is
A simple and convenient method is to provide healthy and full-fledged calories

12,27 €
09

Sam's

5000 Calories Per Day - Mass Weight Gainer with Whey Protein Isolate Powder - Building Food for Maximum Fast Weight Gain - Muscle Building & Mass Building SAMS Ultra Hard Gainer (Strawberry)

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8.9

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

What is special: 100% made in Germany. The weight gain powder is delicious, very easily soluble, easy and quick to prepare. By using the protein source CFM whey protein isolate, the protein/calorie powder is biologically very high quality. The protein calorie powder with over 1057 kcal per shake is considered a high-calorie additional food. The weight gain powder is easily digestible and suitable for maintaining bones, muscle mass and muscle building.
What are you looking for: Are you looking for a muscle and mass gainer with extra many calories per shake? Our calorie shake is a dietary supplement for quick gain for regeneration or weight gain for young and old. SAMS Ultra Hard Gainer is high caloric, delivers up to 5000 calories a day and ensures healthy fast weight gain and muscle building at the same time. In case of weight problems, it is considered the product for gaining.
Weight gain powder: with SAMS Ultra Hardgainer as a mass building shake, you can avoid underweight. Sams Ultra Hardgainer delivers many easily digestible calories without fiber for maximum performance and effective mass building. Also suitable for calorie deficiency, weight loss, loss of appetite in old age and the resulting physical and mental performance losses as a high-calorie drinking food (build-up costs).
WHAT IS INSIDE: The weight gainer for gaining weight contains carbohydrates such as isomaltulose, dextrose, maltodextrin, soluble fibre (oligofructose) and the best protein CFM whey protein isolate as the only amino acids source. In addition, high-quality cream fat powder as an energy carrier. It is without sweeteners, without sugar (sucrose), gluten-free, no artificial colours, no soy protein and artificial flavours.
Use: 1 serving = 150 g (8 heaped measuring spoons) of powder with 600 ml low-fat milk in a bowl and stir in. Always put the liquid in the container first and then stir in the powder or prepare in the shaker. It tastes even better in whole milk (3.5% fat). For supplementary nutrition, drink 1-5 servings per day or simply drink the personally required calorie amount as needed.

59,00 €
10

Sam's

5000 Calories Per Day - Mass Weight Gainer with Whey Protein Isolate Powder - Building Food for Maximum Fast Weight Gain - Muscle Building & Mass Building SAMS Ultra Hardgainer (Banana 1050g)

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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

What is special: 100% made in Germany. The weight gain powder is delicious, very easily soluble, easy and quick to prepare. By using the protein source CFM whey protein isolate, the protein/calorie powder is biologically very high quality. The protein calorie powder with over 1057 kcal per shake is considered high-calorie. The weight gain powder is easily digestible and suitable for maintaining bones, muscle mass and muscle building.
What are you looking for: Are you looking for a muscle and mass gainer with extra many calories per shake? Our calorie shake is a dietary supplement for quick gain for regeneration or weight gain for young and old. SAMS Ultra Hard Gainer is high caloric, delivers up to 5000 calories a day and ensures healthy fast weight gain and muscle building at the same time. In case of weight problems, it is considered the product for gaining.
Weight gain powder: with SAMS Ultra Hardgainer as a mass building shake, you can avoid underweight. Sams Ultra Hardgainer delivers many easily digestible calories without fiber for maximum performance and effective mass building. Also suitable for calorie deficiency, weight loss, loss of appetite in old age and the resulting physical and mental performance losses as a high-calorie drinking food (build-up costs).
WHAT IS INSIDE: The weight gainer for gaining weight contains carbohydrates such as isomaltulose, dextrose, maltodextrin, soluble fibre (oligofructose) and the best protein CFM whey protein isolate as the only amino acids source. In addition, high-quality cream fat powder as an energy carrier. It is without sweeteners, without sugar (sucrose), gluten-free, no artificial colours, no soy protein and artificial flavours.
Use: 1 serving = 150 g (8 heaped measuring spoons) of powder with 600 ml low-fat milk in a bowl and stir in. Always put the liquid in the container first and then stir in the powder or prepare in the shaker. It tastes even better in whole milk (3.5% fat). For supplementary nutrition, drink 1-5 servings per day or simply drink the personally required calorie amount as needed.

34,00 €