A Fit Muscular man drinking mass gainer supplement in the gym

10 Best Mass Gainers Supplements: The Top List

If your goal is to gain mass quickly, whether you are a serious bodybuilder or just someone who struggles to gain and maintain weight – you’re probably looking into picking a proper weight gain supplement right now.

We’re here to help you with that, by providing our list of The Top Ten Best Mass Gainer Supplements in the World as of 2019.

Don’t Want To Read The Entire Top List? Here Is a Comparison Of The Top 2 Best Mass Gainer Supplements:

  Product NameIngredient SafetyProduct EfficacyValue for MoneyTaste 
Transparent Labs ProteinSeries Mass Gainer9910096100Check Out Our #1
Optimum Nutrition Pro Gainer94989999Check Out Our #2

We base the list on user and critic reviews, our experience with supplements, the reputation and trustfulness of the manufacturer, and, of course, documented results from athletes and bodybuilders.

In today’s market that’s flooded with hundreds upon hundreds of different products – it can be difficult to correctly pick a supplement with regards to your body’s needs and your personal goals.

We hope that when you read this list, and our comprehensive guide of Mass Gainer Supplements – you will be able to pick just the right type of product that helps you bulk up and propels your training results to the next level.

A correctly chosen supplement guarantees results – while a poorly picked one can hamper your training or even hurt your body – that’s why it is of paramount importance that you become as well informed as you can be, before picking the best weight gainer available.

Finally, if you’re a woman and aren’t that much interested in gaining mass but still want great results in the gym, be sure to check out the best pre-workout supplements for women as well as the best fat burners for women.

Why You Need Mass Gainers – The Simple Explanation

A Skinny Man Flexing In front of a massive and muscular silhouette

Do not confuse weight gain supplements with pure muscle building products like the best BCAA supplements.

While a bulking supplement will help you build muscle, it is not designed solely for that purpose.

Even though all of the products in this top 10 list can also be considered among the best muscle building supplements because they all contain a high amount of protein and BCAAs – their only purpose is to help you bulk up, which means that you will be getting both muscle AND fat.

But don’t fret, because to gain muscle fast and in a healthy way, it is necessary to do it properly and not shy away from fats. You can always get ripped later when you’re happy with the mass that you’ve gained – that’s how serious bodybuilders have always done it.

The benefits of these bulking supplements are many – with the primary one being that you WILL pack on a lot of weight. So if you are a skinny ectomorph, you should definitely look into this type of product.

Also, since these products often contain vital nutrients, vitamins, and amino acids – you will be getting many other indirect benefits as well; such as increased performance and strength, better endurance and faster muscle recovery.

And, if you want to increase your results even further, then getting the best creatine supplement for men as well as the best testosterone booster will improve your gains dramatically. Because you’ll be able to put in much more work in the gym than you normally would.

So without further ado, we present you with our list of the best weight gaining supplements that are currently on the market.

The Top 10 Best Mass Gainer Supplements

 1. Transparent Labs ProteinSeries Mass Gainer

Transparent Labs ProteinSeries Mass Gainer Supplement container front

Transparent Labs ProteinSeries Mass Gainer is currently the cleanest and healthiest mass gainer supplement that is available. It contains 53 grams of Grass-Fed Whey protein, 109 grams of clean, natural, and slow-digesting carbohydrates, 6 grams of fat – and totals at 750 calories per serving.

The first and most important thing is that the whey protein concentrate contained in this protein powder comes from 100% Grass-Fed sources.

Grass-fed whey is proven to be significantly healthier for you than the grain-fed counterpart, providing you with many different health benefits, other than just protein supplementation.

The second important thing is that all the carbs contained in this supplement come from organic and naturally grown sources, like Tapioca, Oat, and Sweet Potato Carbohydrates.

This means that there’s no dextrose and similar fast-acting carbs that spike your insulin hormone and screw up your blood sugar levels.

The Full Ingredient List:

  • Protein – 53 g
  • Carbohydrate – 109 g
  • Fat – 12 g

Ingredient Profile Label of Transparent Labs Mass Gainer supplement

The Pros:

  • The healthiest available option
  • Contains Coconut Milk Powder
  • Organic Tapioca, Oat, and Sweet Potato Carbohydrate Sources!
  • 6 grams of cocoa
  • High in Fiber
  • Contains 3g Creatine Monohydrate
  • All-Around Supplement
  • Natural Sugars
  • Great Protein/Carb/Fat Radio
  • Premium Quality Ingredients
  • Trusted and Respected Manufacturer
  • Absolutely Amazing Taste
  • Gras-Fed Whey from New Zealand!
  • No artificial sweeteners, food dyes, or harmful additives

As you can see, you’ll be hard-pressed to find a mass gainer that even remotely contains all of these benefits – and they are just the main ones.

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There are many more secondary benefits coming from various ingredients in this supplement. For example, 6 grams of pure Cocoa provides you with powerful antioxidants. Cocoa in itself is known to lower LDL Cholesterol levels as well as high blood pressure, increase blood flow to arteries, reduce chances of blood clots, and even increase cognitive function.

Grass-fed whey has a bunch of benefits in itself – and so do oats, sweet potatoes, etc.

The Cons:

  • Medium Sodium and High Cholesterol Content
  • Expensive

Well, you can’t have it all, and one serving contains around 23% Sodium and 37% Cholesterol Daily Value content.

So to be on the safe side, do not take more than is necessary.

Even though this supplement is an amazing meal replacement, it is not recommended to use for more than one consecutive meal. That’s because you wouldn’t get your full day’s nutritional vitamin and mineral needs, which is the case with almost every mass gainer supplement.

The supplement is also on the expensive side. But since your health is important to us, we believe that putting down a few extra dollars in exchange for the healthiest available option is always worth it.

Ingredient Safety:99%

Product Efficacy:100%

Value For Money96%


Currently, the cleanest, meanest and best mass gainer supplement on the market – bar none.

The taste is among the best we’ve ever tried – like a delicious chocolaty smoothie. It’s extremely smooth, not thick, and goes down very easy.

It is perfect for those who want to build lean mass and pack on a lot of muscle without too much flab.

This supplement is the absolute healthiest choice and we can recommend it to absolutely anyone who has the goal of developing a huge and lean physique.


HINT: Use “FitBody” Coupon Code to Get a 10% Discount! 

The only practical downside is the price, but the benefits and gains are totally worth it. It is our favorite and best pick of the year, and if you want quality, safety and results – you’ll find none better.

2. Optimum Nutrition Pro Gainer

Optimum Nutrition Pro Mass Gainer Supplement

Optimum Nutrition Pro Gainer is a high-protein mass gainer with 650 calories per serving that’s widely considered to be the best mass and muscle building supplement in the industry by both critics and users alike.

It’s manufactured by a respected and trusted manufacturer with many years of experience.

The Full Ingredient List:

  • Protein – 60 g
  • Carbohydrate – 85 g
  • Fat – 8 g

Ingredient Profile Label of Pro Gainer by Optimum Nutrition

The Pros:

  • All-Around Supplement
  • Lower Cholesterol out of all supplements
  • Low Sugar
  • Great Protein/Carb/Fat Radio
  • High-Quality Ingredients
  • Great Value
  • Trusted and Respected Manufacturer
  • Amazing Taste
  • Great For Beginners and Professionals

With all of these upsides, it’s currently one of the best mass gainer supplements on the planet. The fat content is very healthy and also makes it an excellent occasional meal replacement, and not just a weight gain product.

The manufacturer is one of the most respected companies in the industry and has millions of happy customers buying their products.

The taste is absolutely delicious and resembles a rich smoothie!

The Cons:

  • Slightly high sodium content
  • Contains Sucralose and Acesulfame-K
  • Some Stomach Issues

As with any best weight gainer product, stomach issues can occur; such as bloating and indigestion. This can’t really be helped in most mass gainer supplements as they are notoriously hard to digest and tend to contain a lot of sodium.

The biggest disappointment is that the supplement contains Sucralose and Acesulfame-K, which makes it less healthy than it could have been.

If the supplement didn’t contain these two artificial sweeteners, it could have been pretty much perfect!

Ingredient Safety:94%

Product Efficacy:98%

Value For Money99%


See The Price for Optimum Nutrition Pro Gainer

This product is incredibly effective at what it does, and we can safely recommend it to anyone; beginners and professional athletes alike. The fact that it’s not overstuffed with vitamins but still contains a decent amount makes sure that serious athletes can add more serving sizes to get the desired dosage.

Currently, this is among the best mass gainers in the supplement industry, and the overwhelming majority of positive reviews from industry critics and users completely agree with us.

The price is also quite affordable!

3. True-Mass by BSN

True-Mass by BSN Supplement

True-Mass by BSN is a premium weight gainer with 710 calories per serving.

The Full Ingredient List:

  • Protein – 50 g
  • Carbohydrate – 90 g
  • Fat – 17 g

Ingredient Profile Label of BSN True Mass supplement

The Pros:

  • All-Around Product
  • Reputable Manufacturer
  • Low Cholesterol
  • Great Value
  • Perfect Protein/Carb/Fat Ratio
  • Great Ingredient Quality
  • Affordable

This is an all-around product that’s great for beginners and professionals. It’s also very effective for hard-gainers and skinny ectomorphs.

The reason it’s ideal for professional bodybuilders who want to maximize their mass is that it isn’t overstuffed with vitamins, meaning that they can take exactly the dosage that they need without any side effects. The only downside to that is that the product becomes more expensive than normal.

The Cons:

  • Bloating
  • Not Great Mix-Ability
  • Some users dislike the taste
  • No Vitamin or Macronutrient Complex

The biggest con is naturally the potential for stomach issues. Unfortunately, according to most mass gainer reviews, they are notorious for causing bloating and indigestion, with this product sadly not being an exception.

Also, if you’re using this product, you might also want to supplement it with some daily vitamins, for better effect. It’s still a very good mass gainer even with these flaws, but it’s not perfect.

Ingredient Safety:95%

Product Efficacy:99%

Value For Money95%


Take a Look at the Price for BSN True-Mass

Overall, the product is amazing! It is very effective at what it does and can be used by absolutely anyone who wants to gain weight.

It is undoubtedly one of the best bulking supplements in today’s market with the little caveat that you might want to supplement it with daily vitamins.

4. Universal Nutrition Real Gains

Universal Nutrition Real Gains Supplement powder

Universal Nutrition Real Gains is a Muscle Gainer that has 600 calories per serving.

It’s developed by one of the most trusted and longtime manufacturers in the business.

The Main Ingredient Ratio:

  • Protein – 52 g
  • Carbohydrate – 87 g
  • Fat – 5 g

The Pros:

  • Low Fat
  • Low Cholesterol
  • Low Sugar
  • Great Protein and Amino Acid Profile
  • Trusted and Reputable Manufacturer
  • Affordable
  • High-Quality Protein
  • Great Taste
  • No Creatine
  • Great Mix-Ability
  • Flaxseed Oil Aids in Digestion

The Cons:

  • Weak Vitamin profile
  • Bloating
  • Contains Soy Lecithin
  • Not for hard-gainers or ectomorphs

Even though flaxseed oil aids in digestion, many users have experienced bloating.

Ingredient Safety:92%

Product Efficacy:97%

Value For Money94%


See The Price for Universal Nutrition Real Gains

This product comes from one of the most reputable and longtime manufacturers and has been the industry standard when it comes to having real and clean gains. It has always been considered one of the best top rated mass gainer supplements out there.

It also doesn’t overstuff itself with vitamins and other nutrients, meaning that professional bodybuilders can take larger than recommended dosages and get massive gains without experiencing side effects.

However, due to its low fat and carb content, it’s not very suitable for skinny ectomorphs and hard-gainers.

5. Dymatize Elite Mass Gainer

Dymatize Elite Mass Gainer Supplement container

Dymatize Elite Mass Gainer is an Anabolic Gainer Supplement with 600 calories per serving.

The Main Ingredient Ratio:

  • Protein – 54 g
  • Carbohydrate – 75 g
  • Fat – 7 g

The Pros:

  • Great Taste
  • Good Value
  • Low Sugar
  • Low Cholesterol
  • All-Around Product

This is an all-around product suitable for both beginners and professional bodybuilders because it comes in two options; Elite Mass Gainer with 600 calories and 75 g carbs and Super Mass Gainer with 1300 calories and 238 grams of carbs.

The Cons:

  • Bloating and other stomach issues
  • Expensive
  • Doesn’t taste good
  • Large Serving Sizes
  • The protein blend is a cheaper quality than 100% Whey Isolate
  • Contains Acesulfame-K – and artificial sweetener

Many users reported experiencing digestion and stomach issues after ingesting this product

Ingredient Safety:88%

Product Efficacy:93%

Value For Money93%


Check The Price for Dymatize Eite Mass Gainer

Overall this is quite an impressive product that does what it promises, and it comes in two different varieties; one for beginners and those who want to gain leaner muscle and the other for professional bodybuilders and hard-gainers.

However, the subpar taste, the protein content and the price should definitely be improved on if it wants to become a very good mass gainer.

6. Serious Mass by Optimum Nutrition

Serious Mass by Optimum Nutrition Supplement

Serious Mass by Optimum Nutrition is a weight gain high-calorie powder that contains 1250 calories per serving.

It packs a massive Protein and Carbohydrate punch with a very low fat content – making it a perfect post-workout as well as recovery shake!

The Main Ingredient Ratio:

  • Protein – 50 g
  • Carbohydrate – 254 g
  • Fat – 4 g

The Pros:

  • Very low fat content
  • No Added Sugar
  • Enhanced with Creatine, Glutamine, and Glutamic Acid
  • Great Vitamin and Essential Mineral content
  • Great Taste
  • Very Easy to Drink

The Cons:

  • Weak Protein to Carbs ratio
  • High chance of bloating
  • Bad Carb Composition
  • Huge Serving Sizes (334g)
  • Huge Insulin Spike

It’s not really suitable as a perfect meal replacement because the fat content is too low for that.

But the biggest problem with this supplement is that all the carbs come from Maltodextrin. While it is a much better carb than say Dextrose, it is still not the ideal version, where a more complex carb would have been much better to keep blood sugar levels low. That’s what the best mass gainers do.

Ingredient Safety:85%

Product Efficacy:88%

Value For Money94%


Check The Price for ON Serious Mass Gainer

While it is indeed perfect for serious bodybuilders, who want to pack on a ton of muscle and need a lot of carbs, the protein content, and the carb composition could have been much better.

We recommend this for hard gainers and skinny ectomorphs who don’t mind so much Maltodextrin.

The full 25 Vitamin and Essential Mineral profile is very impressive!

7. Nature’s Best Isopure Mass

Nature’s Best Isopure Mass Gainer Supplement

Nature’s Best Isopure Mass is a bulking powder with 600 calories per serving.

The Main Ingredient Ratio:

  • Protein – 53 g
  • Carbohydrate – 86 g
  • Fat – 5 g

The Pros:

  • Low Fat Content
  • Great Vitamin and Nutrient Profile
  • Affordable
  • Great for Pre and Post Workout
  • Not Overwhelming
  • Great for Beginners and Advanced gym-goers
  • Great Taste

The Cons:

  • Not for hard gainers
  • Not for huge gains
  • Claims to be lactose-free but causes problems for people with lactose intolerance
  • Doesn’t blend well
  • Irritates Stomach

A lot of reviewers who are lactose intolerant reported that they received severe problems similar to when ingesting milk/ice-cream.

A decent number of regular users reported that it irritates their stomach.

Ingredient Safety:89%

Product Efficacy:83%

Value For Money91%


See The Price for Isopure Mass

While this product is definitely effective and we do recommend it for beginners and advanced gym-goers – we can’t recommend it for serious bodybuilders who want to gain serious mass and for hard-gainers or ectomorphs.

Also, we don’t recommend this to anyone with any stomach or digestion issues.

If it wants to be the best mass gainer, it still has some issues to fix.

8. Muscletech Mass Tech Powder

Muscletech Mass Tech Powder Supplement container

Muscletech Mass Tech Powder is a dietary supplement that has 1010 calories per serving.

The Main Ingredient Ratio:

  • Protein – 63 g
  • Carbohydrate – 168 g
  • Fat – 9 g

The Pros:

  • Low Fat
  • Great Carbohydrate Complex
  • Great Taste
  • Affordable

The Cons:

  • Artificial Sweeteners and other unnecessary additives
  • Bad Mix-Ability
  • Way too much creatine at 10g, which can cause side effects

The biggest con is a surprising 10 grams of Creatine.

Ingredient Safety:66%

Product Efficacy:86%

Value For Money89%


Check Price for Muscletech Mass Tech Powder

While the product is otherwise amazing, we are surprised to see an unnecessary 10 grams of Creatine that it contains.

This is way too much creatine by any standards, so we can only recommend this product for those who are not sensitive to it or those that specifically want so much.

9. MHP Up Your Mass

MHP Up Your Mass Supplement container

MHP Up Your Mass is a weight gainer supplement with 800 calories per serving.

The Main Ingredient Ratio:

  • Protein – 62 g
  • Carbohydrate – 80 g
  • Fat – 27 g

The Pros:

  • Good Protein Blend
  • Great Vitamin and Nutrient Content
  • Affordable

The Cons:

  • Bad taste
  • Not for serious bodybuilders
  • Contains Soy
  • Too much Fat

Ingredient Safety:86%

Product Efficacy:81%

Value For Money87%


See the Price for MHP Up Your Mass

This one’s a decent weight gainer for men as well because it delivers what it promises and does so at a very affordable price.

However, it contains way too much fat, and still fails to grab the attention of serious bodybuilders who need more calories.

The taste is also consistently rated as awful, by most users.

10. Monster Mass by CytoSport

Monster Milk Mass Gainer by CytoSport Supplement

Monster Milk by CytoSport is a bulking supplement and muscle building supplement that packs 600 calories per serving.

The Main Ingredient Ratio:

  • Protein – 50 g
  • Carbohydrate – 76 g
  • Fat – 12 g

The Pros:

  • Good for beginners
  • Not overwhelming
  • Provides steady energy
  • Great Taste

The Cons:

  • Not for serious bodybuilders
  • Not for serious gains
  • High Fat Content
  • Not a very pure protein blend

Ingredient Safety:89%

Product Efficacy:69%

Value For Money85%


This weight gainer shake is a decent product to start off with for beginners and those who don’t want to bulk up too much.

However, for more serious athletes who want to pack a punch, we recommend other options.

Respect the Dosage Instructions and Don’t Abuse Them

It’s always a good idea to carefully read the manufacturer’s label of any supplement product before you use it.

The recommended dosage is there for a reason, so unless you are a very experienced and serious athlete, please respect the dosage of your chosen mass gainer.

Also, as with most dietary supplements, it is not recommended to use them for a very long time, because they are not a substitute for a proper and healthy diet. Do not use longer than two months, unless you are a professional athlete or have discussed it with a doctor.

Finally, here are some other relevant top lists: 

The Best Stimulant-Free Pre Workouts

The Best Post Workout Supplements

The Best Tasting Protein Powders

The Best Pre Workout Supplements for Men

The Best Protein Powders for Women


We hope that this article helped you pick out the mass gainer that suits you best, out of the hundreds of different ones available on the market.

Don’t forget that no supplement is a magic pill – you still have to put in the effort and have an effective training program as well as a healthy diet.

A correctly picked product along with proper use will guarantee you great results.

Have any interesting thoughts or ideas regarding high-calorie mass gainer supplements? Let us know in the comment section below!

Eat Right, Train Hard and Get Gains!