Best Weight Gain 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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9.9

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

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.

70,35 €
02

GEN GERMAN ELITE NUTRITION

Clean Weight Gainer - 3 kg - With Complex Carbohydrates & Protein - Ideal for the Mass Phase - Powder for Mass Building and Gaining - Vegetarian - Vanilla Flavour

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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

With extra glutamine, bromelaine and lactase: our gainer has been specifically optimised, with an additional 5 g L-glutamine, which corresponds to a total amount of 17,478 mg glutamine per serving. The formula is complemented by 563 F.I.P. Bromelain and 6,750 FFC lactase units per serving. The combination of bioactive enzymes and high-quality protein makes this shake a thoughtful addition to your diet, more than just a classic mass shake.
With complex carbohydrates: While many mass gainers contain large amounts of sugar and inferior fillers, the Clean Mass Gainer relies on quality. High-quality proteins, complex carbohydrates from oats and rice flour as well as enzymes make it the ideal basis for a balanced diet. Each serving (150 g powder) delivers 563 kcal, including 89 g of high-quality carbohydrates with only 5 g sugar, 36 g protein and 6 g fat.
High protein: our gainer relies on ultra-filtered whey protein concentrate from German pasture farming. With 36 g of high-quality protein per shake, it offers a first-class source of protein.
From athletes for athletes: since 2016, German Elite Nutrition has been producing high-quality dietary supplements in German brand quality. Our products are made from selected raw materials to strict quality standards, developed with a focus on reliability and purity.
Delicious taste: 6 delicious varieties with pleasant sweetness, without aspartame or questionable additives.

44,99 €
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

16% 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

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.

44,61 € 52,99 €(16% Off off)
Value for Money

04

Optimum Nutrition

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

22% 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.

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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.

39,19 € 49,99 €(22% Off off)
05

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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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

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)
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

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.

40,72 € 49,99 €(19% Off off)
07

CALOVITAL

CaloVital High Caloric Food for Weight Gain, Endurance & Energy Bars with Lots of Protein & 592 Calories, Meal Bars Vegan & Lactose Free, CaloCake by CaloVital Box of 24 (Cookies & Cream)

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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

Your goals: Are you looking for a carbohydrate bar or high-calorie food to gain weight? CaloCake from CaloVital is a high-calorie bar as well as build-up food and ensures healthy, fast weight gain and mass build-up at the same time. It acts as a restorative food for seniors as well as an astronaut food. Especially for people with underweight, for lack of appetite in old age or to support convalescence, CaloCake helps as a bar with many calories
Vegan bars, lots of calories: CaloCake as a high-calorie meal replacement contains not only carbohydrates and protein, but also large proportions of important unsaturated fatty acids. As vegan sweets, CaloCake acts not only as a weight gain bar but also as a healthy vital food. The oatmeal bar with long-chain carbohydrates is additionally lactose-free, without aspartame and suitable for vegetarians as well as vegans
Many carbohydrates – little sugar: add healthy ingredients to your body with this calorie bar and mass building bar. A high energy density and a demand coverage of many calories and fibre can help to get back in shape with increased energy requirements or malnutrition. CaloCake is a meal replacement bar and a high-calorie dietary supplement. It tastes delicious and helps to rebuild the body easily and quickly
Fitness bar for hard gainers: whole grain oatmeal, American cookies and delicious cover made of white chocolate as a perfect fitness snack in between or as a protein bar for children. CaloCake is an oat bar, oatcake or oatmeal therefore also the perfect vegetable protein source for strength athletes. Optimal snack for athletes with high energy consumption or for hard gainers. CaloCake is an energy snack, fitness bar and weight gainer in one and tastes particularly juicy and delicious
Calocake – the increase bar of Calovital: with CaloCake as a carbohydrate bar mass build-up, you can avoid malnutrition. Especially when the nutrient requirements can no longer be met by normal diet, but also with age-related deficiency symptoms. The high carb cake works just as well as high-calorie drinks as a tasty, digestible snack for seniors. CaloCake has a delicious consistency and is the perfect energy cake for weight gain

44,96 €
08

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

17% 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.

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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.

41,53 € 49,99 €(17% Off off)
09

Mammut

Mammut Nutrition Crash Weight Gainer Powder Vanilla - 1.4 kg - 518 kcal/Shake for Weight Gain - 80% Carbohydrates - 4-Component Protein - Ideal for Endurance and Performance Athletes

12% 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.

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Main highlights

Ideal for endurance and performance athletes – even athletes in the strength and endurance range rely on a targeted carbohydrate supply. Successful performance and endurance athletes know what important role carbohydrates play in their diet
High carbohydrate content with 80 percent carbohydrates – in order to gain weight or mass, a positive energy balance must be achieved, the body must be supplied daily more energy through e.g. carbohydrates than it consumes
Contribution to weight gain – especially "hard gainers", i.e. athletes who can gain weight by nature should use this carbohydrate megabooster
868 KCAL PRO 2 SHAKES – For a shake, mix 70 g Weight Gainer Crash 5000 with 250 ml milk (3.5 percent) and enjoy it before or after training. Depending on calorie needs and training intensity, up to 3 shakes per day can be drunk
3-component carb complex and 4-component protein complex – with optimally coordinated carbohydrates such as dextrose and maltodextrin as well as the 4-component protein complex of soy, chicken, whey and milk protein

21,97 € 24,99 €(12% Off off)
10

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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8.6

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.

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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
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29,99 €