Updated:28 September 2026
Rank 1-18 of the best Mass Gainers
Our recommendation Price Customer rating
1. Comparison winner
Myprotein Impact Weight Gainer V2 2.5kg
Myprotein Impact Weight Gainer V2 2.5kg
Available immediately
free shipping
  • 31g of protein per serving
  • 50g of carbohydrates per serving
Our rating
9,8
very good
Warrior Mass Protein Powder 5.04kg - Salted Caramel
Warrior Mass Protein Powder 5.04kg - Salted Caramel
Available immediately
free shipping
  • 61 grams of protein per serving to support muscle growth
  • large amount of carbohydrates from natural oats and waxy maize starch for energy
  • glutamine-rich formula to aid muscle recovery and performance
Our rating
9,6
very good
3. Bestseller
Optimum Nutrition Serious Mass Protein Powder, Chocolate, 5.45 kg
Optimum Nutrition Serious Mass Protein Powder, Chocolate, 5.45 kg
Available immediately
free shipping
  • 50 grams of protein per serving to support muscle growth
  • 250 grams of carbohydrates per serving to aid muscle recovery
  • 3 grams of creatine monohydrate per serving to enhance physical performance during high-intensity exercises
Our rating
9,6
very good
Dymatize Super Mass Gainer 2943g - Gourmet Vanilla
Dymatize Super Mass Gainer 2943g - Gourmet Vanilla
Available immediately
free shipping
  • Contains 52 grams of protein per serving to support muscle growth and maintenance
  • Provides up to 243 grams of carbohydrates per serving for energy during the bulking phase
  • Includes 3 grams of creatine to enhance physical performance during intense training
Our rating
9,6
very good
5. Best value
USN Hyperbolic Mass 6kg, Dutch Chocolate
USN Hyperbolic Mass 6kg, Dutch Chocolate
Coming soon
free shipping
  • provides 60g of protein per serving to support muscle growth
  • contains a blend of carbohydrates including maltodextrin and waxy maize starch
  • includes 7.5g of creatine to enhance muscle performance
Our rating
9,6
very good
100+ purchases last month
Reflex Nutrition One Stop® Xtreme Protein Powder, Vanilla Ice Cream, 4.35kg
Reflex Nutrition One Stop® Xtreme Protein Powder, Vanilla Ice Cream, 4.35kg
Available immediately
free shipping
  • Contains 55g of protein per 145g serving to support muscle growth
  • Includes 71g of carbohydrates per 145g serving for sustained energy release
  • Incorporates 5,000mg of creatine per 145g serving to enhance physical performance
Our rating
9,5
very good
Angled Method Mass Gainer Powder, Milk Chocolate, 6kg
Angled Method Mass Gainer Powder, Milk Chocolate, 6kg
Available immediately
free shipping
  • contains whey protein, a rich source of essential amino acids, supporting muscle growth and recovery
  • balanced blend of carbohydrates offering sustained energy, ideal for post-workout refueling
Our rating
9,5
very good
USN Muscle Fuel Anabolic Mass Gainer, Strawberry, 2kg
USN Muscle Fuel Anabolic Mass Gainer, Strawberry, 2kg
Available immediately
free shipping
  • 54g of protein per serving to aid muscle recovery and growth
  • 77g of carbohydrates per serving to provide energy and support performance
  • contains creatine monohydrate to enhance physical performance
Our rating
9,5
very good
XL Nutrition Xtra Mass 5.2kg Mass Gainer
XL Nutrition Xtra Mass 5.2kg Mass Gainer
Available immediately
free shipping
  • contains 50g of protein per serving to aid muscle growth and repair
  • provides 172g of carbohydrates per serving as a main energy source
  • includes creatine to enhance muscle mass and strength development
Our rating
9,3
good
Optimum Nutrition Serious Mass Protein Powder, Vanilla, 2.73 kg
Optimum Nutrition Serious Mass Protein Powder, Vanilla, 2.73 kg
Available immediately
free shipping
  • provides 50 to 53 grams of protein per serving for muscle growth support
  • more than 250 grams of carbohydrates per serving to aid in recovery and weight gain
  • includes 3 grams of creatine monohydrate to enhance physical performance during intense exercise
Our rating
9,1
good
The Bulk Protein Company SERIOUS GAINZ Whey Protein 5kg
The Bulk Protein Company SERIOUS GAINZ Whey Protein 5kg
Available immediately
free shipping
  • 26 grams of protein per serving for muscle growth support
  • 77 grams of carbohydrates per serving to enhance protein absorption and increase muscle mass
  • contains creatine for improved muscle performance
Our rating
9,1
good
Applied Nutrition Critical Mass Weight Gainer
Applied Nutrition Critical Mass Weight Gainer
Available in a few days
free shipping
  • high protein content to support muscle growth
  • high carbohydrate content aids energy replenishment
  • includes creatine to enhance athletic performance while supporting muscle recovery
Our rating
9,0
good
Bulk Protein Shake, Chocolate, 2.5 kg
Bulk Protein Shake, Chocolate, 2.5 kg
Available immediately
free shipping
  • 40 grams of protein per serving to support muscle growth
  • 66 grams of carbohydrates per serving to aid energy replenishment
Our rating
8,8
good
MUTANT Mass Weight Gainer Protein Powder, 2.27 Kg - Cookies and Cream
MUTANT Mass Weight Gainer Protein Powder, 2.27 Kg - Cookies and Cream
Available immediately
free shipping
  • contains 56 grams of protein to support body tissue building and repair
  • provides 192 grams of carbohydrates for energy, including whole-food complex carbs like barley starch, sweet potato, and rolled oats
  • includes creatine known for enhancing performance during high-intensity exercises
Our rating
8,5
good
Applied Nutrition Critical Mass Weight Gainer 2.4kg - Chocolate
Applied Nutrition Critical Mass Weight Gainer 2.4kg - Chocolate
Available immediately
free shipping
  • provides over 1,000 calories per serving with a blend of fast and slow-digesting proteins for muscle recovery and growth
  • contains a premium carbohydrate complex to sustain energy levels and support muscle glycogen replenishment
  • includes creatine monohydrate to boost strength and endurance during high-intensity training
Our rating
8,5
good
Reflex Nutrition Instant Mass Heavyweight - Protein Shake, 2kg
Reflex Nutrition Instant Mass Heavyweight - Protein Shake, 2kg
Available immediately
free shipping
  • Contains 60g of protein per serving to support muscle growth and maintenance
  • Provides 200g of complex carbohydrates per serving for sustained energy
  • Includes creatine to enhance physical performance during high-intensity exercise
Our rating
8,5
good
SCI-MX Total Mass Protein Powder, 2kg, Chocolate
SCI-MX Total Mass Protein Powder, 2kg, Chocolate
Available immediately
free shipping
  • 31 grams of protein per serving for muscle growth and repair
  • high carbohydrate content for energy and supporting weight gain
  • includes a digestive complex with amylase, protease, lipase, cellulase, and lactase
Our rating
8,4
good
Bulk Mass Gainer Protein Shake, Chocolate, 1 kg
Bulk Mass Gainer Protein Shake, Chocolate, 1 kg
Available immediately
free shipping
  • 40g protein per serving supports muscle growth
  • 66g carbohydrates per serving for energy replenishment
  • amino acids such as leucine and glutamine promote muscle repair and growth
Our rating
7,5
satisfactory

Similar Mass Gainer comparisons

Mass Gainers buying guide: How to choose the right product from the above Mass Gainers test or comparison

What is a Mass Gainer and How Does It Work?

Understanding Mass Gainers

A mass gainer is a type of dietary supplement designed to help individuals increase their caloric intake, which is crucial for gaining weight and building muscle. Essentially, they are packed with a mix of carbohydrates, proteins, and fats to provide a dense source of energy. If you’re looking to bulk up or simply add some additional pounds, a mass gainer can be a convenient option, especially if you find it challenging to consume enough calories through regular meals alone.

The Science Behind Mass Gainers

These supplements typically contain a high number of calories per serving, allowing you to achieve a caloric surplus more easily. For instance, you might find a mass gainer that offers around 1,000 calories in a single shake. This can be particularly beneficial for those with fast metabolisms or individuals who struggle with appetite. When used alongside a proper strength training regimen, mass gainers can help stimulate muscle growth by providing the necessary macronutrients to fuel your workouts and recovery.

Key Ingredients to Look for in a Mass Gainer

Proteins: Building Blocks of Muscle

When choosing a mass gainer, look for one that lists protein as one of the main ingredients. Quality protein sources such as whey protein concentrate or casein protein are often preferred, as they support muscle repair and growth post-workout. A good mass gainer will typically contain between 20 to 30 grams of protein per serving.

Carbohydrates: Fuel for Your Workouts

Carbohydrates are a crucial component of mass gainers, providing the energy needed for intense training sessions. We recommend looking for complex carbohydrates, like oats or maltodextrin, rather than simple sugars. These slow-digesting carbs will help sustain energy over a longer period, making them more effective at promoting weight gain compared to sugary alternatives.

Healthy Fats: Essential for Overall Health

Many mass gainers also include healthy fats from sources such as MCT oil or flaxseed. Healthy fats are important for hormone production and overall health, and they contribute additional calories to support your weight gain goals. Aim for mass gainers that incorporate these good fats, as they can also enhance the flavour and texture of the shake.

How to Choose the Right Mass Gainer for Your Goals

Define Your Goals

Before selecting a mass gainer, it’s important to define your personal fitness and weight gain goals. Are you looking to gain weight quickly, or are you planning for a more gradual increase? If you’re aiming to pack on weight in a short period, you might prefer a mass gainer with a higher calorie count per serving.

Consider Dietary Restrictions

Do you have any dietary restrictions or preferences? If you’re lactose intolerant, for example, we suggest looking for mass gainers that use plant-based proteins or are specifically labelled as lactose-free. This way, you can ensure you’re getting the right nutrients without discomfort.

Taste and Mixability Matters

Since you’ll be consuming these shakes regularly, taste and mixability are important factors to consider. Many mass gainers can be thick and challenging to blend, so look for those that mix easily with water or milk. You might also want to sample a few flavours before committing to a large container.

How to Use a Mass Gainer Effectively for Best Results

Timing is Everything

To maximise the effectiveness of a mass gainer, consider when you consume it. Consuming a shake post-workout can be particularly beneficial, as your muscles require nutrients to recover after exercise. You might also use a mass gainer as a meal replacement or between meals to help you meet your caloric intake.

Hydration is Key

While a mass gainer can help with weight gain, it’s essential to stay hydrated as well. Some ingredients in mass gainers can be dehydrating, so ensure you’re drinking plenty of water throughout the day. This can help improve digestion and nutrient absorption.

Pair with a Balanced Diet

A mass gainer should complement a balanced diet, not replace it entirely. Continue to consume whole foods like fruits, vegetables, lean proteins, and whole grains, as they provide vital nutrients that supplements can’t completely replicate. Incorporating whole foods will not only enhance your health but also support your weight gain journey more effectively.

Top Recommendations for Mass Gainers on the Market

Established Brands We Trust

We recommend exploring solid brands known for their quality mass gainers. Brands like Optimum Nutrition, BSN, and MyProtein consistently receive positive feedback for their formulations. Look for their products that meet the criteria we’ve discussed above.

Check for Customer Reviews

Before making a purchase, take a moment to read customer reviews. These can provide insight into how effective a mass gainer is, its taste, and any side effects other users may have experienced. We encourage looking for feedback from users with similar goals to yours.

Explore Customised Options

Some companies offer personalised nutrition plans, which include tailored mass gainers to suit your specific biology and goals. If you prefer a more bespoke product, it could be worth investigating these services, as they might provide a mass gainer perfectly suited to your unique requirements.

Table of contents
  1. What is a Mass Gainer and How Does It Work?
  2. Key Ingredients to Look for in a Mass Gainer
  3. How to Choose the Right Mass Gainer for Your Goals
  4. How to Use a Mass Gainer Effectively for Best Results
  5. Top Recommendations for Mass Gainers on the Market

Overview

1. Comparison winner
Myprotein Impact Weight Gainer V2 2.5kg
Our rating
9,8
very good
Myprotein Impact Weight Gainer V2 2.5kgAvailable immediately
Warrior Mass Protein Powder 5.04kg - Salted Caramel
Our rating
9,6
very good
Warrior Mass Protein Powder 5.04kg - Salted CaramelAvailable immediately
3. Bestseller
Optimum Nutrition Serious Mass Protein Powder, Chocolate, 5.45 kg
Our rating
9,6
very good
Optimum Nutrition Serious Mass Protein Powder, Chocolate, 5.45 kgAvailable immediately
Dymatize Super Mass Gainer 2943g - Gourmet Vanilla
Our rating
9,6
very good
Dymatize Super Mass Gainer 2943g - Gourmet VanillaAvailable immediately
5. Best value
USN Hyperbolic Mass 6kg, Dutch Chocolate
Our rating
9,6
very good
USN Hyperbolic Mass 6kg, Dutch ChocolateComing soon
Reflex Nutrition One Stop® Xtreme Protein Powder, Vanilla Ice Cream, 4.35kg
Our rating
9,5
very good
Reflex Nutrition One Stop® Xtreme Protein Powder, Vanilla Ice Cream, 4.35kgAvailable immediately
Angled Method Mass Gainer Powder, Milk Chocolate, 6kg
Our rating
9,5
very good
Angled Method Mass Gainer Powder, Milk Chocolate, 6kgAvailable immediately
USN Muscle Fuel Anabolic Mass Gainer, Strawberry, 2kg
Our rating
9,5
very good
USN Muscle Fuel Anabolic Mass Gainer, Strawberry, 2kgAvailable immediately
Our product comparisons are:
Always up to date:
At most every 120 days, we update each category with new products and research developments in the top rankings. This ensures that our recommendations are always up to date
Neutral and independent:
Our tests and comparisons are objective and fact-based. Manufacturers have no influence on the ratings. We aim to provide greater transparency in the market, thereby promoting product quality.
Method-driven
In our tests & comparison tables, we only include products that meet our minimum standards. This ensures that you can find the perfect product for your needs from a wide selection.
Similar tests and comparisons - Protein Blends