Best Lean Mass Gainers Tested and Compared

Lean mass gainers are a great way to speed up the progression of your lean mass development, and many come with added benefits of lowering recovery time and adding vital calories into your diet. We have broken down a list of some of the best lean mass gainer supplements to help you make the best decision for your needs. This list contains both natural and bulk gainers, so we are confident that there is an option for everyone.

Our Top 3 Picks

Optimum Nutrition Gainer
  • Optimum Nutrition Gainer
  • 5 out of 5
    Our rating
  • 1200 cal P/S
  • Price: See Here
MRM All Natural Gainer
  • MRM All Natural Gainer
  • 4.5 out of 5
    Our rating
  • 20 Servings
  • Price: See Here
MHP Mass Gainer
  • MHP Mass Gainer
  • 4 out of 5
    Our rating
  • 62g Protein P/S
  • Price: See Here

10 Best Lean Mass Gainers

 

1. Serious Mass from Optimum Nutrition

1. Serious Mass from Optimum Nutrition
Optimum Nutrition Gain Powder is the top rated product on this list and is the optimum mass gainer, offering you a huge 50g of protein in each serving, and 252g of complex carbohydrate.
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This blend gives you a much higher rate of muscle growth at a consistent rate, and gives you lower recovery time and muscle wastage, making it one of the best supplements for mass.

There are around 8 servings in each container, which is by far the lowest in this list, making the value for money with the Optimum Nutrition Serious Mass High Protein Gain Powder relatively low.

However, the product offers over 1200 calories in each serving, so it can add vital calories to the diet of intense weight trainers and athletes.
Pros
  • Higher rate of muscle growth
  • Lower time for recovery
  • 8 servings per container
Cons
  • Gritty consistency

2. MRM All Natural

2. MRM All Natural
MRM All Natural Gainer helps to minimise your muscle recovery time and natural muscle breakdown after a workout, helping you to build more lean muscle with the added protein that MRM All Natural Gainer introduces into your diet.
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MRM All Natural Gainer is a completely natural, gluten free supplement, making it perfect for those with a more sensitive digestive system, or those who have a more restrictive diet.

MRM All Natural Gainer also contains no MSG, aspartame, or artificial flavourings, making it a much healthier and natural alternative to some of the bigger, bulk fitness whey proteins.

MRM All Natural Gainer is taken once a day, or one serving can be split into multiple servings throughout the day, as this will give you the best and most consistent results. Each container provides you with around 20 servings, making the MRM All Natural Gainer great value for money in comparison to some other options on this list.
Pros
  • Minimizes the time for muscle recovery
  • All natural
  • Gluten free
Cons
  • May not suit everyone's taste

3. Maximum Human Performance

3. Maximum Human Performance
Maximum Human Performance LLC Up Your Mass advertises that it can help you gain up to 16 lbs of lean mass in five weeks, which is a massive amount of muscle gain in that time.
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Maximum Human Performance LLC Up Your Mass achieves this by providing you with a massive 62g of protein in each serving, as well as 26g of glutamine and other supplements to help the protein be absorbed as best as possible.

Maximum Human Performance LLC Up Your Mass offers you around 17 servings in each container, which is better than a lot of high potency supplements on this list, however it is still an expensive product for long term use.

The Maximum Human Performance LLC Up Your Mass is taken twice a day for the best results, and offers 800 calories in each serving, which is ideal for those who require a much higher calorie diet in order to maintain or gain more lean muscle mass.
Pros
  • Helps you gain up to 16 lbs of lean mass in five weeks
  • Great muscle gain
  • 62gr of protein per serving
Cons
  • May not taste as pleasant as other products

4. Optimum Nutrition Pro

4. Optimum Nutrition Pro
Optimum Nutrition Pro Gainer High Protein Gainer offers a massive 60g of protein in each serving, and is formulated with 85g of complex carbohydrates to offer a much longer and more successful absorption in the digestive system.
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The Optimum Nutrition Pro Gainer High Protein Gainer is naturally and artificially flavoured in order to make it more enjoyable, as the supplement is take every day.

The Optimum Nutrition Pro Gainer High Protein Gainer is taken every day in conjunction with a healthy lifestyle and dietary choices so that you can gain lean muscle at an optimum level and develop the body you’re aiming for.

Optimum Nutrition Pro Gainer High Protein Gainer is a customisable protein powder, and can be added to shakes an smoothies, or made into a shake or smoothie in order to add extra benefits or to make the shake tastier to drink.

In each container there are around 15 servings, so it is not a high a value for money as some other options on this list, but it does offer a lot more calories for those who need a high calorie diet to keep their muscle mass.
Pros
  • Great absorption in the digestive system
  • 60gr of protein per serving
  • Gaining lean mass
Cons
  • Somewhat expensive

5. ALLMAX Nutrition

5. ALLMAX Nutrition
ALLMAX Nutrition Quick Mass Loaded Rapid Mass Gain Catalyst is another high potency lean mass gainer, giving you over 1000 calories I each serving, making this a great muscle building supplement perfect for the weight trainer and high performance athlete.
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ALLMAX Nutrition Quick Mass Loaded Rapid Mass Gain Catalyst has been recommended by Informed-choice.org as one of the best supplements for intense weight trainers and high performance athletes.

The ALLMAX Nutrition Quick Mass Loaded Rapid Mass Gain Catalyst is scientifically developed to provide you with a complex carbohydrate and high protein blend to give a lasting absorption throughout the day in order to give you the best lean mass supplement and muscular gain possible, so that you don’t have to solely rely on your diet to gain the protein that you need to build up muscle.

ALLMAX Nutrition Quick Mass Loaded Rapid Mass Gain Catalyst is specially formulated so that you can take it to both gain lean muscle mass with a higher dosage, and maintain mass with a slightly lower dosage, making it easy to tailor the supplement to your body and your needs.

Each container gives around 10-20 servings depending on how you are taking ALLMAX Nutrition Quick Mass Loaded Rapis Mass Gain Catalyst, so it is not as great value for money as some other supplements available in this list.
Pros
  • 1000 calories per serving
  • Great for a weight trainer
  • Great for high performance athletes
Cons
  • None

6. GAT Muscle Martini

6. GAT Muscle Martini
The GAT Muscle Martini is a fully natural and non-GMO supplement that is gluten free, vegetarian, and very low in sugar, making it one of the better supplements on this list.
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The GAT Muscle Martini is a more natural alternative to some of the whey proteins in order to gain lean muscle mass, especially if you have a more restrictive diet or a more sensitive digestive system. The GAT Muscle Martini is also developed in a GMP assured facility, making it a completely ethical protein supplement.

The GAT Muscle Martini lowers the natural muscle recovery time and maximise the lean muscle gain after a workout without using artificial colours, flavours or sweeteners, all of which can be highly detrimental to your body.

The GAT Muscle Martini is taken twice a day with 8 oz of water, giving you at least 30 servings in each container, which is great value for money, as this is much higher than some other protein options on this list. If you’re looking for a more natural protein supplement to maximise your muscular gains, the GAT Muscle Martini is an excellent option to consider.
Pros
  • Natural supplement
  • Non-GMO
  • Glutten free
  • Suitable for vegetarians and vegans
Cons
  • May not suit everyone's taste

7. BSN True Mass

7. BSN True Mass
The BSN True Mass Powdered Protein and Carbohydrate Drink Mix is a premium protein-carb matrix to provide you with the optimum absorption over a longer period of time so that your body can develop as much lean muscle as possible.
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The BSN True Mass Powdered Protein and Carbohydrate Drink Mix offers 700 calories in each serving, which can be hugely helpful for the avid weight lifter who needs extra calories to maintain the muscle, but struggles to do so through diet.

The BSN True Mass Powdered Protein and Carbohydrate Drink Mix is developed in a DMP factory, however it is not suitable for more sensitive diets, as it contains allergens such as milk and soy. The BSN True Mass Powdered Protein and Carbohydrate Drink Mix is taken once per day, and there are around 16 servings in each container, which is not great value for money if you are planning to take this muscle supplement over a long period of time.
Pros
  • Optimum absorption rate
  • Great for developing lean mass
  • Great for weight lifters who need the extra calories
Cons
  • Does not mix well
  • Contains allergens and is not suitable for vegetarians and vegans

8. Universal Nutrition Real Gains

8. Universal Nutrition Real Gains
Universal Nutrition Real Gains Weight Gainer is a whey micellar casein mass gainer protein matrix that is specially formulated from complex carbohydrates to provide a long lasting and optimum absorption to provide you with the best results and the most muscle gains.
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The Universal Nutrition Real Gains Weight Gainer offers over 600 calories in each portion, making this protein supplement perfect for the hard core body builder or weight lifter, as the higher muscle requires more calories each day, which can be difficult to access through diet alone.

Unfortunately, the Universal Nutrition Real Gains Weight Gainer is not a vegetarian or vegan friendly supplement, and contains many other allergens, so it is not suitable for more sensitive digestive systems or stricter dietary requirements, which is a huge drawback to the Universal Nutrition Real Gains Weight Gainer.

The Universal Nutrition Real Gains Weight Gainer is taken once a day between meals and bedtime to provide you with the extra calories that you need to maintain the high calorie consumption and prevent natural muscle breakdown.

It is recommended to split this into two or three servings each day, as the Universal Nutrition Real Gains Weight Gainer is a much higher potency than many other options on this best lean mass gainer list, making it great value for money for the avid weight trainer.
Pros
  • Long lasting absorption
  • Great for muscle gain
  • Great for body builders
  • Great for body lifters
Cons
  • Contains certain allergens
  • Not suitable for vegetarians and vegans

9. Sports Carbo from Now Foods

9. Sports Carbo from Now Foods
Sports Carbo Gain from Now Foods is a complex carbohydrate muscle supplement that is made with no artificial sweeteners, aspartame, or any other nasty chemicals that can be detrimental to your body.
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The Carbo Gain is also fully vegetarian and vegan friendly, and is made in a non-GMO factory, making it a very ethical protein supplement that is suitable for a wide range of dietary requirements and digestive needs.

The product is designed for maximum muscle gain from each workout, and is produced by Now Foods, which is a highly reputable company that produces a wide range of health supplements, so you can be sure that you are receiving a high quality product in the product.

It is taken before, during, and after exercise in order to produce the best effects, and the serving size is 2/3 of a cup to 24 oz of liquid, so the product will not last for as long as some other products on this best lean mass gainer list, so it is not as high a quality as some other options.
Pros
  • No chemicals
  • No artificial sweeteners
  • Quality ingredients
Cons
  • Doesn't dissolve easily

10. ProSupps

10. ProSupps
The ProSupps Weight Gainer Formula is a double protein blend from whey to help give you the most muscle gain possible.
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The ProSupps Weight Gain inducing Formula also provides steady absorption by using twice the source of carbohydrates for a lasting and optimum absorption.

The Super Weight Gainer Formula has been specially developed for Ectomorphic gainers and those who train particularly hard in the gym to gain lean and bulk muscle.

The Formula is made with natural sourced and artificial flavourings in order to make it palatable, but is completely gluten free, and is made in a GMP approved factory, so it is a completely ethical muscle building supplement.

It is taken once per day, and the suggested serving size it tailored to your body, as you should take around 1g of protein to one pound of bodyweight.

This Formula completely customisable to your body and your needs so that you can get the most out of your protein supplement. Moreover, the Super Weight Gainer Formula is great value for money.
Pros
  • Provides a steady and optimum absorption
  • Gaining lean mass
  • Gaining bulk muscle
Cons
  • May give you stomach cramps

Decision Time

These best lean mass gainer options are all an excellent option currently on the market for high intensity training and large muscle gain and maintenance. No matter what your exercise regime is like, we hope that this list has helped you to find the best lean mass gainer for you and your needs so that you can build the body that you have always dreamed of.