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Last updated: 11 Feb 2020

10 Best Mass Gainers (Review) In 2021

optimum nutrition serious mass weight gainer

Optimum Nutrition Serious Mass Weight Gainer

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now sports nutrition, carbo gain (maltodextrin)

NOW Sports Nutrition, Carbo Gain (Maltodextrin)

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optimum nutrition pro gainer

Optimum Nutrition Pro Mass Gainer

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By Instash
Published 09:33 am
Contents
  • The Best Mass Gainer
  • 1 Optimum Nutrition Serious Mass Weight Gainer
  • 2 Optimum Nutrition Pro Mass Gainer
  • 3 MuscleTech Mass Tech Mass Gainer
  • 4 Dymatize Super Mass Gainer Protein Powder
  • 5 BSN TRUE-MASS Weight Gainer
  • 6 Body Fortress Super Advanced Mass Gainer
  • 7 NOW Sports Nutrition, Carbo Gain (Maltodextrin)
  • 8 Real Gains Weight Gainer
  • 9 CytoSport Cyto Gainer Protein Powder
  • 10 CHOCOLATE LESS NAKED MASS – All Natural Weight Gainer Protein Powder

If you’re trying to put on mass, it can be difficult to eat enough calories every day. Whether you don’t have time to prepare healthy and calorific meals or you don’t have a big appetite, mass gainers can be a great option to get those extra calories in. They contain a blend of protein, carbohydrates, and fat that feed your body after a workout to make sure you get the maximum gains. On our search for the best mass gainer, we’ve narrowed it down to the following ten products.

The Best Mass Gainer

1
Optimum Nutrition Serious Mass Weight Gainer

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optimum nutrition serious mass weight gainer
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This mass gainer from Optimum Nutrition is one of the most effective ways of maximizing your weight gain potential and supporting your lean muscle growth. You get 1,250 calories with each service, which is equivalent to a (very) large meal. Of course, those calories aren’t just any old calories. There’s 50g of protein and 252g of carbohydrates in every serving. On top of that, you get 25 vitamins and minerals as well as creatine and glutamine, to provide your body with all of the fuel it needs to operate perfectly.

In this 12lb pack, you get 16 servings, which should keep you going for a couple of weeks. There is a smaller 7lb tub available, but it’s not as good value. Plus, this mass gainer comes in 6 different flavors. If your sole aim is to put on weight, this is the best mass gainer supplement to always have in your gym bag. 

Key Features:

5.45kg bag

16 servings

1,250 calories per serving

50g protein per serving

252g carbs per serving

6 flavors available

Specification:
  • BrandOptimum Nutrition
  • Model1095321
  • Weight3.52 ounces
Pros

Tastes fantastic

Lots of flavor options

It works quickly

Cons

Shake is very thick

Can have too many vitamins

2
Optimum Nutrition Pro Mass Gainer

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optimum nutrition pro gainer
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Optimum Nutrition Pro Gainer is designed to help you recover after a workout and increase your muscle mass. The carefully selected blend of proteins, carbohydrates, fats, vitamins, and minerals is exactly what your body needs after a heavy workout. Like the last Optimum Nutrition mass gainer shake, this product will help you put on weight, but it has higher levels of protein, which improves recovery.

On the tub, it says that you get 650 calories per serving. However, a lot of customers have found that to be inaccurate. You might have to put more than 1 heaped measurement in to get the full amount (about another ⅓ or ½ serving). If you have scales, you can measure the serving out accurately. Having said that, this product does have a fantastic reputation for the way it breaks down in water and the way it tastes. This is super important because the best mass gainer is the one you will use every day. If you hate it, you’re not gonna use it.

Key Features:

4.62kg bag

28 servings

650 calories per serving

60g protein per serving

85g carbs per serving

4 flavors available

Specification:
  • BrandOptimum Nutrition
  • ModelOP65
  • Weight10.19 pounds
Pros

High protein levels for improved recovery

Tastes fantastic

Lots of flavor options

Breaks down well in water

Cons

Inaccurate serving sizes

3
MuscleTech Mass Tech Mass Gainer

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muscletech mass tech mass gainer
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muscletech mass tech mass gainer
muscletech mass tech mass gainer
muscletech mass tech mass gainer
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This mass gainer from MuscleTech is designed specifically for weightlifters. It has the perfect combination of ingredients for those lifting gains and they’ve got the studies to back it up. In an 8-week study of weightlifters (where 2,000 calories of MuscleTech Mass Gain were added to a protein-rich diet already consisting of 2,300 calories), the group that took this supplement gained over 5x as much mass as the control group. That’s proof that this is a quick and effective way of increasing your mass as a weightlifter.

Each serving has 1010 calories, 80g of protein, and 156g of carbs, when it’s mixed with 2 cups of skim milk. Plus, it’s not just for post workouts – you can drink this shake in the morning or in-between meals as well, which makes it a more versatile option for everyday weight gaining. Some customers have complained that it’s too thick, but the taste more than makes up for it. Perfect to help you gain and maintain that muscle mass.

Key Features:

3.17kg tub

14 servings

1010 calories per serving

80g protein per serving

156g carbs per serving

Available in 4 flavors

Specification:
  • BrandMuscleTech
  • ModelMAS04-007-CH-0-US
  • Weight7.01 pounds
Pros

Backed up by scientific studies

Tastes great

High protein per serving

Cons

Doesn’t last long

Shake it too thick

4
Dymatize Super Mass Gainer Protein Powder

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dymatize super mass gainer protein powder
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dymatize super mass gainer protein powder
dymatize super mass gainer protein powder
dymatize super mass gainer protein powder
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If you’re looking for a mass gainer that’s all about the calories, you should try the Dymatize Super Mass Gainer Protein Powder. It has 1310 calories per serving, which makes it the most calorific gainer on our list so far. But don’t worry, they haven’t just packed it full of bad stuff to make up the numbers. It’s full of high-quality ingredients and nutrients to support that weight gain.

It also has 10.7g of BCAAs (branched-chain amino acids), which increase protein synthesis (the building of muscle tissue). However, these ingredients should come with a warning because they can seriously lower your mood. If you have a history of depression, you should steer clear of products that contain BCAAs. If your mood is pretty solid, this mass gainer should work wonders for you.

Key Features:

2.7kg tub

8 servings

1310 calories per serving

52g protein per serving

10.7g BCAAs per serving

Available in 6 flavors

Specification:
  • BrandDymatize
  • Model33128
  • Weight6.75 pounds
Pros

Lots of flavor options

Super-high calorie count

Cons

Can seriously lower mood

Contains lots of sugar

5
BSN TRUE-MASS Weight Gainer

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bsn true-mass weight gainer
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The BSN TRUE-MASS Weight Gainer is one of the best-reviewed mass-gainers on Amazon. Over 950 customer reviews, it has managed to maintain a 4.5-star rating, which is seriously impressive for a product like this. The reason? It doesn’t have any surprising ingredients and they don’t make any outlandish claims about the results you can expect. Instead, they just give you the facts and figures. Each serving has 700 calories, which might seem on the low side but it’s the quality of those calories that counts. For example, the 46-50g of protein in every serving is provided by 7 different ingredients like casein and whey. And there’s a mixture of slow, medium and fast digesting proteins. The strength of this mass gainer lies in its 2:1 carbohydrate to protein formula. This is designed for athletes who need to increase their calorie intake. Are you also looking for the perfect protein shaker to prepare your healthy shakes? Be sure to check out our selection of the best ones on the market.

Key Features:

2.64kg tub

16 servings

700 calories per serving

46g protein per serving

2:1 ratio of carbs and protein

4 flavors available

Specification:
  • BrandBSN
  • Model1084853
  • Weight5.82 pounds
Pros

High-quality protein sources

Perfect for athletes

Great flavor

Cons

Some products arrive with a broken seal

6
Body Fortress Super Advanced Mass Gainer

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body fortress super advanced mass gainer
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Body Fortress Super Advanced Mass Gainer is a cheap alternative if you don’t need huge containers. It’s a good way to try mass gainers out and see if you like them. The 1.8kg tub only has about 8 servings in (based on 3 scoops per serving), so it will probably only last you a week if you’re working out hard. We’ve also found that the information on the front of the pack is pretty misleading – you need 6 scoops to get the 1,000 calories and 40g of protein, which would mean only about 4 servings in the pack. As we said, it’s a cheap way of trying this type of product out.

On the plus side, it has 8g of BCAAs and 2.5g of betaine anhydrous, which helps support lean mass and body composition. There’s also a lot of anecdotal evidence in the Amazon review section, where customers have shown their results.

Key Features:

1.8kg tub

Approx 4 servings

1,000 calories per serving

40g protein per serving

8g BCAAs per serving

2 flavors available

Specification:
  • BrandBody Fortress
  • Model074312549212
  • Weight4.5 pounds
Pros

Cheap price for the tub

Tastes great

Cons

Misleading information

Take a lot of effort to mix

7
NOW Sports Nutrition, Carbo Gain (Maltodextrin)

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now sports nutrition, carbo gain (maltodextrin)
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This next product is slightly different from the other mass gainers on this list. Instead of mixing protein, carbs, and fat into one product, NOW Sports Nutrition focuses on carbohydrates. It is pure maltodextrin, which is a complex carbohydrate derived from GMO corn. It contains glucose polymers which are easy for the body to digest and assimilate, making this the perfect post-workout supplement. It also doesn’t have any of the fancy flavorings that you see in most products. Instead, you add a scoop of this to water or juice and add 250 calories to your drink. You can even put your flavorings in if you find something you like. It’s often added to a protein shake to create your mass gaining product. The best thing about this product though is the value – you get about 57 servings in the tub and costs just over $20. If you want to get more bang for your buck, this is the tub for you.

Key Features:

3.6kg tub

57 servings

Contains maltodextrin

250 calories per serving

Flavorless

Specification:
  • BrandNow Sports
  • Model2023
  • Weight8 pounds
Pros

Amazing value

No added ingredients

Works quickly

Cons

No scoop included

8
Real Gains Weight Gainer

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real gains weight gainer
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The Real Gains Weight Gainer is used by bodybuilders and weightlifters around the world. It has a reputation as one of the ‘best bang for your buck’ mass gainers on the market. It comes in a 4.8kg bag, which should provide you with over 30 servings. That means if you are just using it for post-workout once a day, a bag should last you about a month. Each serving contains about 600 calories, 53g of protein, and 84g of carbohydrates. The best thing about this mass gainer, in particular, is that it provides both fast and slow-digesting carbohydrates. That means your muscles are fed after a workout and can continue to grow. It also has healthy fats from MCTs and EFA, which makes it very nutrient-dense compared to other mass gainers. A lot of Amazon customers have mentioned how good it tastes as well, and there’s a total of 7 flavors to choose from, so you should find one that you enjoy drinking.

Key Features:

4.8kg bag

30 servings

600 calories per serving

53g protein per serving

84g carbohydrates per serving

7 flavors available

Specification:
  • BrandUniversal Nutrition
  • ModelUNI1028/106/1079
  • Weight2.2 pounds
Pros

Contains fast and slow-digesting carbs

Great value for money

Lots of flavors

Tastes great

Cons

Some products arriving opened

9
CytoSport Cyto Gainer Protein Powder

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cytosport cyto gainer protein powder
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cytosport cyto gainer protein powder
cytosport cyto gainer protein powder
cytosport cyto gainer protein powder
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A lot of weightlifters swear by CytoSport Cyto Gainer. It’s easy to get carried away and pick the weight gainer with the most calories, protein, carbs, and fat. But it’s not always the best course of action. This mass gainer contains 550 calories per serving, so it’s nowhere near the most calorific shake on here. But it makes up for it with a mixture of other key ingredients. For example, it contains whey peptides that increase protein synthesis. The complex carbohydrates are 96.5% sugar-free. And, it contains no simple sugars, fructose, or sucrose, so it should help you build muscle instead of increasing body fat. All of this makes this one of the most efficient weight gaining products on the market. Our only slight complaint is that the stats on the front of the tub are quite misleading because you need to take 4 scoops instead of 2 to get the 54g of protein. It also makes a perfect fitness gift for weightlifters and fitness enthusiasts in your life.

Key Features:

2.7kg tub

18 servings

550 calories per serving

54g protein per serving

Contains whey peptides

Contains glutamine and creatine

Available in 2 flavors

Specification:
  • BrandCytoSport
  • Model60726-22016
  • Weight6.6 pounds
Pros

Efficient mass gaining

Contains ingredients to help build muscle

Cons

Only available in 2 flavors

Misleading information

10
CHOCOLATE LESS NAKED MASS – All Natural Weight Gainer Protein Powder

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chocolate less naked mass - all natural weight gainer protein powder
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chocolate less naked mass - all natural weight gainer protein powder
chocolate less naked mass - all natural weight gainer protein powder
chocolate less naked mass - all natural weight gainer protein powder
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The biggest selling point of Less Naked Mass is that it only contains 5 ingredients – Naked whey, Naked casein, organic maltodextrin, organic coconut sugar, and organic raw cacao. That means customers know exactly what they are eating, without having to read hundreds of complicated ingredients. Even with that cut-back ingredient list, you get 50g of protein, 251g of carbohydrates, and 11.6g of BCAAs. And, in every serving, there are an amazing 1360 calories. It’s one of the most stacked mass gainers on this list. The only problem is how much sugar is in each serving – about 50g. That does mean that it tastes amazing without the need for artificial flavoring but it can be bad for your health if you’re not keeping an eye on things.

Key Features:

3.63kg

11 servings

1360 calories per serving

50g protein per serving

251g carbohydrates per serving

Only 5 ingredients

Contains maltodextrins

Available in 3 flavors

Specification:
  • BrandNAKED nutrition
  • Weight8.8 pounds
Pros

Only natural ingredients

Lots of calories per serving

No artificial sweeteners

Cons

Contains lots of sugar

Not many servings per tub

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