Best Weight Gain 2026

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Last Updated - 27.03.2026

Best Choice

01

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

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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

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**

65,95 €
02

Mammut

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

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19% Off
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.

42,99 € 52,99 €(19% Off off)
Value for Money

03

Mammut

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

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23% Off
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

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.

40,84 € 52,99 €(23% Off off)
04

CALOVITAL

CaloVital High-Calorie Shake for Weight Gain, Carbohydrates and Protein as Calorie Shake, High Doses of Multi-Vitamins, Premium Quality from Germany (Chocolate 500 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

Your way: You can avoid malnutrition by using CaloVital as a carbohydrate drink. Especially if your nutrient needs can no longer be met by a normal diet, but also in cases of loss of appetite or age-related deficiency symptoms. The carbohydrate shake is just as good as high-calorie drinks as a tasty, easily digestible snack for older people. CaloVital has a rich consistency and provides easier absorption in case of difficulty swallowing.
Your goals: Are you looking for a carbohydrate shake or high-calorie food supplement for weight gain? CaloVital is a liquid meal as well as a restorative food and ensures a healthy, fast weight gain and mass building at the same time. It acts as a restorative food for seniors as well as an astronaut food. CaloVital is a high-calorie liquid food especially for people who are underweight, experiencing loss of appetite in old age or who need support during convalescence.
The nutrients: CaloVital is a high-calorie liquid food which contains not only carbohydrates and protein powder, but also large proportions of important vitamins and minerals such as vitamin C, vitamin A, folic acid, calcium and magnesium. This carbohydrate protein powder acts not only as a weight gain shake but also as a healthy vitality food. It is also gluten-free, aspartame-free, nuts-free, gelatine-free and preservative-free.
Preparation: 1 serving = Place 50 g (2 heaped measuring spoons) of powder into 150 ml of whole milk (3.5% fat) or skimmed milk (1.5% fat) in the shaker or stir with a whisk until the calorie shake powder is completely dissolved. Always put the liquid into the container first, then stir in the powder. Dosage/daily dose for supplementary diet: 2–5. You can also use CaloVital as a dietary supplement with soy milk.
Extra multi vitamins: Provide healthy ingredients to your body with this calorie powder and weight gain shake. A high energy density and a needs-based supply of essential vitamins and minerals in easily usable form help you to get back into shape when you have increased energy requirements or malnutrition. CaloVital is a meal replacement and a high-calorie dietary supplement. It tastes delicious and helps to rebuild the body quickly and easily.

23,96 €
05

CALOVITAL

CaloVital High-Calorie Shake for Weight Gain, Carbohydrates and Protein as Calorie Shake, High Doses of Multi-Vitamins, Premium Quality from Germany (Chocolate 500 g)

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10% Off
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

Your way: You can avoid malnutrition by using CaloVital as a carbohydrate drink. Especially if your nutrient needs can no longer be met by a normal diet, but also in cases of loss of appetite or age-related deficiency symptoms. The carbohydrate shake is just as good as high-calorie drinks as a tasty, easily digestible snack for older people. CaloVital has a rich consistency and provides easier absorption in case of difficulty swallowing.
Your goals: Are you looking for a carbohydrate shake or high-calorie food supplement for weight gain? CaloVital is a liquid meal as well as a restorative food and ensures a healthy, fast weight gain and mass building at the same time. It acts as a restorative food for seniors as well as an astronaut food. CaloVital is a high-calorie liquid food especially for people who are underweight, experiencing loss of appetite in old age or who need support during convalescence.
The nutrients: CaloVital is a high-calorie liquid food which contains not only carbohydrates and protein powder, but also large proportions of important vitamins and minerals such as vitamin C, vitamin A, folic acid, calcium and magnesium. This carbohydrate protein powder acts not only as a weight gain shake but also as a healthy vitality food. It is also gluten-free, aspartame-free, nuts-free, gelatine-free and preservative-free.
Preparation: 1 serving = Place 50 g (2 heaped measuring spoons) of powder into 150 ml of whole milk (3.5% fat) or skimmed milk (1.5% fat) in the shaker or stir with a whisk until the calorie shake powder is completely dissolved. Always put the liquid into the container first, then stir in the powder. Dosage/daily dose for supplementary diet: 2–5. You can also use CaloVital as a dietary supplement with soy milk.
Extra multi vitamins: Provide healthy ingredients to your body with this calorie powder and weight gain shake. A high energy density and a needs-based supply of essential vitamins and minerals in easily usable form help you to get back into shape when you have increased energy requirements or malnutrition. CaloVital is a meal replacement and a high-calorie dietary supplement. It tastes delicious and helps to rebuild the body quickly and easily.

21,56 € 23,96 €(10% Off off)
06

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

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22% Off
9.3

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.

38,99 € 49,99 €(22% Off off)
07

Mammut

Mammut Nutrition Crash Weight Gainer Powder Chocolate - 4.5 kg - 518 kcal/Shake for Weight Gain - 80% Carbohydrates - 4-Component Protein - Ideal for Endurance and Performance Athletes

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19% Off
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.

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.

42,99 € 52,99 €(19% Off off)
08

Mammut

Mammut Nutrition Crash Weight Gainer Powder Chocolate - 4.5 kg - 518 kcal/Shake for Weight Gain - 80% Carbohydrates - 4-Component Protein - Ideal for Endurance and Performance Athletes

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23% Off
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.

40,84 € 52,99 €(23% 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

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17% Off
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.

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.

20,69 € 24,99 €(17% Off off)
10

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

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21% Off
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

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.

19,66 € 24,99 €(21% Off off)