The Best Mass Gainer (2021) | TOP 10 Supplements to Buy!

Want to gain weight, but nothing helps? Struggle with a fast metabolism? Let me tell you; if you work out to build muscle without results, you’re doing something wrong. It takes more than a few visits to the gym to gain weight.

And there’s a simple solution to your problem: weight gainers.

Best mass gainer supplements boost your calorie intake, giving your body enough nutrients to build lean muscle mass and get bulkier, and gain weight.

But are they really effective? Will they help you grow bigger and heavier? I’ve provided a list of the best weight gainers I’ve ever tried in my professional and personal life.

Let’s break it down bit by bit and help you understand how to increase mass and which supplements are the best to achieve your athletic goals.

Review Summary:

  • 1. Transparent Labs Mass Gainer – #1 Best Overall & Great For Women
  • 2. Universal Real Gains
  • 3. Optimum Nutrition
  • 4. MuscleTech Mass Tech
  • 5. Optimum Nutrition Serious Mass
  • 6. MuscleMeds Carnivor
  • 7. Dymatize
  • 8. BSN True Mass Gainer
  • 9. Evlution Nutrition
  • 10. MusclePharm Combat XL

10 Best Weight Gainer Supplements (List for 2021)

1. Transparent Labs Mass Gainer – #1 Best Overall & Great For Women

Transparent Labs Mass Gainer

Transparent Labs is, in my experience, one of the cleanest mass gainers, you can get your hands on. I was looking for an effective supplement to build muscles without gaining any extra weight, and a coworker suggested this product.

I was amazed by how effective it can be without any fillers or crappy components. I was able to notice an increase in strength and muscle mass with regular use in a few weeks. Unlike many workout supplements, this one also tastes like a good milkshake!

What’s more, the formula is low in sugar with a good amount of fiber, 109 Grams of carbs,  grass-fed whey protein, creatine, and a few other components that support most athletes.

PROS

Improves endurance

Supports digestion

Contains MTC fats

A solid amount of fiber

No artificial ingredients and fillers

No side effects

CONS
Pricy

Summary: With a solid blend of components, this supplement is great for men and skinny guys as it also contains cholesterol, and it’ll help you get muscles efficiently with a proper diet and regular workouts. It’s free of any nasty ingredients, and it causes zero side effects, which was great news for me!

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2. Universal Real Gains – For Lean Muscle Growth

Animal Real Gains

Real Gains is the second runner up. I would love it more if it was a bit cleaner. Apart from that, it’s made with a formula that’s easy to digest since it also contains a good amount of fiber and inulin.

With a blend of slow and fast-digesting carbohydrates and protein, Universal builds muscle and helps you increase weight since it contains just the right ratio of protein to carbohydrates. When testing it, I was able to notice great results within a month, but I train hard personally and professionally.  

PROS

Promotes weight gain

Contains a blend of milk proteins

More sizes available

More flavors available

CONS
Contains artificial flavors and sucralose

Summary: Appropriate for men and women, Real Gains helps to fill the lack of calories if you’re serious about gaining weight. It’s a great option for all who struggle with a hectic lifestyle as it provides great support on the go! Since it uses a smaller amount per serving, it’ll last a long time.

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3. Optimum Nutrition Pro – Best Value

ON Pro Gainer

With a blend of 60g protein, 85g carbohydrates, and 24 vitamins and minerals, I normally recommend Optimum to those of my clients who want to get muscles.

It’s best used after workouts, and it feeds your body with the necessary nutrients. This mass gainer pill can make a big change for active athletes who struggle to keep up with their diet plans, workouts, and weight gains.

If you want to boost the calorie intake even further, add peanut butter into the mix to get a tasty yet nutritious shake.

PROS

Promotes weight gain

Helps build muscles

Easy to digest

Effective meal replacement

Six different types of protein

Contains small amounts of fat and sugar

Available in more flavors

CONS

Contains artificial flavors and sucralose

No fiber content

Summary: While I don’t recommend you rely on Optimum for your protein intake, it can be a great replacement when you’re on the go or when you need a dose of calories. If you don’t mind sucralose as a sweetener, this top supplementation can be an effective support for an athletic lifestyle. I don’t like the fact that it doesn’t contain any fiber, but if you’re paying attention to your meals, you can get it with a healthy diet.

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4. MuscleTech

MuscleTech Mass Tech

Mass Tech knows what you need for weight gain, muscle gain, and how to support your high-intensity workouts. It specifically targets those who struggle to put on muscles and have run out of options.

With a well-designed formula, Mass Tech combines protein with carbohydrates, aminos, creatine, and a few others. It’s a great combo of components if you really want to become big and not just talk about it. After all, the brand knows its business as they’ve been proclaimed #1 award-winning nutrition brand in the States.

PROS

Builds muscle

Increases strength

One of the few protein powders to include creatine.

More flavors available

cMGP certified

CONS
Contains sucralose and artificial flavors

Causes gas

Summary: If you don’t mind sucralose and a few other components, Mass Tech will help you build serious muscle within a few weeks. For best effects, combine the powder (80 grams of protein per serving) with a banana, peanut butter, and milk. You’ll get loaded on calories that your body needs and get the support for your hard work.

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5. Optimum Nutrition Serious Mass

Optimum Nutrition Serious Mass

This Optimum Nutrition high-quality protein powder weight gainer packs 1,250 calories per serving, and you can increase that by mixing it with cold milk. Its blend consists of 50g protein.

Apart from that, the 250g of carbohydrates are without any added sugar, and it also contains creatine (for muscle gains and strength increase), and glutamine (an amino acid that supports muscles).

With an additional 25 minerals and vitamins, it nourishes your body and provides complete support for an active lifestyle. You can use it in between meals, post-workout and before bed.

PROS
Builds muscle

Increases strength

Provides support to active muscles

Contains a blend of minerals and vitamins

Contains creatine and glutamine     

CONS
Pricy

Contains artificial color and flavors

Added sucralose

Summary: The larger dose makes this product slightly pricy, but it’ll give you a calorie boost no matter where you are (50 grams of protein per serving). The flavor is decent, but not great. Still, if you’re skinny, it’ll help you achieve your goals and get stronger. Just remember to stick to a healthy diet that further supports your athletic goals.

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6. MuscleMeds Carnivor

MuscleMeds Carnivore Mass

Carnivor Mass, also called anabolic food, is an advanced mass gainer supplement. It contains a blend of hydrolyzed beef protein isolate, fiber, BCAAs, and creatine; all you need to build strength, muscle, and increase recovery.

It is an excellent calorie and protein boost that you can take any time you want; I prefer to take it post-workout to increase muscle recovery and growth. I didn’t believe this top supplementaion would be as effective, but if you eat properly and work out regularly, you’ll see a difference.

PROS
Supports muscle gain and strength

Promotes recovery

Contains creatine and Aminos

Lactose-free

More flavors available

CONS

Pricy

Causes upset stomach

Summary: Whether you want to bulk up or gain some weight, this supplementation is excellent for all types of athletes. The flavor isn’t the best, but blend it with a bit of milk and some ice cubes; it helps to improve the taste. I use it rarely because it makes my stomach complain about it a little, but switching to a different product for a while always helps!

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7. Dymatize Super

Dymatize Super Mass Gainer

For a product that doesn’t only give you an extra kick of calories but is also a great meal replacement on the days when you’re too busy, Dymatize is a decent supplement that I recommend to anyone who needs the best mass gainer supplements, especially those with a high metabolism.

It’ll help you stop starving your body of nutritious elements you need to build mass and get muscles. You’ll get vitamins and minerals, along with creatine, fiber, and 1,260 calories, essential for muscle gains. 

PROS

Promotes weight gain

Promotes recovery

Contains Aminos

Gluten-free

More flavors available

CONS

Contains sucralose

Large servings

Summary: Dymatize is a solid mass gainer anyone can use. The dose is a bit big, but throw it in the blender, and it mixes well. The flavor isn’t the best, but Rich Chocolate is probably the only decent one they have. The only reason I dislike this product is that it contains sugars. Apart from that, it is an effective supplementation that will help you achieve your goals.

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8. BSN True Mass Gainer –Best Gainer For Skinny Guys

 

BSN True-Mass

Even though this one is a simple and tasty shake, BSN TrueMass provides your body with important nutrients, contains glutamine, fiber, and it is a high-calorie supplement that will help you build and get muscles. It’s a great way to add more macros to your diet.

This won’t replace a meal, though; combine it with a proper healthy diet and regular workout, and you’ll start seeing results fast. I was blown away by how effective it really was only after three weeks!

Add creatine for an extra kick of strength, muscles, and recovery to make the shake even denser.

PROS
23g Essential Amino Acids

Supports muscles

Helps you bulk up 

Added vitamins and minerals

Easy to mix

Decent flavor

CONS
Causes upset stomach

Summary: True-Mass is an effective supplementation that delivers what it promises, but it would be nicer to see it with cleaner components. It contains artificial sweeteners, which I’m not a fan of. Also, some users reported an upset stomach while using it. I’ve never had any problems myself, though.

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9. Evlution Nutrition Stacked Protein Gainer

Evlution Nutrition Stacked Protein Gainer

Each serving contains 12g of BCAAs for muscle recovery and everything else you need to bulk up.

Evlution Nutrition helps you reach your goals with a good distribution of proteins and carbohydrates that support your body and muscles with all the nutrients they need to grow stronger, and bigger.

I prefer to take mine after a workout sip by sip as it is pretty thick and filling.

PROS
Promotes strength

Boosts recovery

Blend of 5 different proteins

Two flavors available

Gluten-free

Made in the USA

CONS

Contains sucralose

Very sweet

Summary: Evlution nourishes your muscles and helps you build them, but the serving size is pretty large (3 scoops), and so are the scoops. It is an effective product, but it’s impractical to take. Still, if you’re looking to build lean muscles, this supplementation will prolong protein synthesis and help you achieve your goals.

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10. MusclePharm Combat XL

MusclePharm CombatXL

An intense weight-gaining supplement, Combat XL packs 1,270 calories per serving combined with four different protein sources, carbs, fatty acids, and essential nutrients.

I have tried it, and I can confirm that it provides complete support for athletes who want to bulk up and people who have difficulties gaining weight. XL helps you get bigger and stay big as well, especially if you use it as an intake of additional calories and not as a meal replacement.

PROS
Promotes increasing weight

Blend of 4 proteins

Informed-choice certified

More flavors and sizes available

CONS
Difficult to mix

Causes stomach discomfort

Contains sucralose

Summary: Combat XL is an effective powder that promotes mass gains quite quickly. Since it doesn’t dissolve easily, adding it into a blender with some milk is the best way to get that thick and creamy shake, you need to stack up on calories and nutrients. If you don’t mind a few fillers, this supplementation can help you well with achieving your goals.

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About Universal Real Gains Weight Gainer – Bonus

Universal Real Gains Weight Gainer is designed with the main objective of enhancing muscle growth by supporting the metabolism through gradual metabolic stimulation. The product has a high degree of efficiency and can ensure the enhancement of muscle mass in the very short term without any side effects. It also offers fast weight-loss without any exercise. The product is available at a much lower cost and the consumers can get it by paying Rs. 500 for 50 doses. What is the Product About? The product is not about dieting. It focuses on training in a limited period of time, giving the product a weight gainer label. The key benefit of the product is to accelerate calorie burning and energy expenditure in order to build the desired physique. It also increases the metabolic rate and thus stimulates a workout regime. This product increases muscle mass while burning off fat.

The product is mostly targeted at people with low-fat or non-fat diets and pregnant women. The Product is available in two forms: one is the product that comes with the use of methyltestosterone and one is anabolic steroids. Methyltestosterone acts to boost the body’s production of testosterone. The product claims to activate the by increasing body temperature and by blocking the action of testosterone to stimulate the body’s production of thermogenic energy. The second ingredient in the product is N, N-Dimethylmaleate. This ingredient is mostly used in muscle building. The product claims to enhance the body’s production of histamine, which helps boost the body’s metabolism.

What is Weight Gainer? Reasons to Take It

Weight gainers are high-calorie supplements that help you gain mass, and I don’t mean that in a bad way. We’re not talking donuts and French fries here. ¨

Weight Gainers

They’re similar to protein supplements, but contain large amounts of carbohydrates, protein, calories, vitamins, and many other nutrients.

A number of different athletes use them, including weightlifters, and amateur gym-goers. They’re practical to use on the go, especially if you’re too busy planning out meals every day.

Keep in mind though that these supplements are meant to be used with high-intensity and heavy workout sessions. If you take them while lazing on the couch, you’ll just gain fat and nothing else.

There are plenty of different reasons as to why take weight gainers. Here are their most important benefits:

Boost calorie intake

Help maintain weight for athletes

Contain dietary fats which help you stay lean and gain muscles at the same time

Rich in fiber, which helps to improve digestion

Can be used before or after a workout

Contain different amounts of calories

Some also contain creatine, so you don’t have to purchase it separately

Improve muscle recovery and boost the immune system with L-glutamine

Who Can Benefit From Weight Gainers?

 They are formulated especially for the following types of people:

  • Bodybuilders and weightlifters:  these supplements can help them bulk up and build muscles since they contain high amounts of calories with a blend of protein, carbohydrate, amino acids, creatine, and many other components that support the muscle-building process effectively.
  • People with fast metabolism may find it difficult to increase mass or even maintain their own body weight, even if they regularly work out. They can help them increase their calorie intake easily, and they’re convenient as you can take them on the go without the need to constantly worry about preparing the next meal.
  • Athletes of different types can benefit from these supplements as they’re high in protein and many essential nutrients that support an active body and provide additional energy.

Do Weight Gainers Have Any Side Effects?

This supplementation may cause some side effects if taken in excess. Always read the label of a product and make sure not to take more as recommended. Also, when taking these supplements, remember to stay hydrated and drink a lot of water.

Overall, there are a few side effects these products can cause:

Liver damage (if taken in excess, they aren’t the best for the liver. Drink plenty of water and don’t take more than recommended)

Fat gain (these supplements may cause a fat gain for those who are especially sensitive to carbs. Avoid fat by using a mass gainer supplement that’s low in carbohydrates)

Allergic reactions (double-check the components’ list to see if you’re allergic to any of the ingredients)

Russian Bear 10000 vs Serious Mass

Vs Russian Bear

Russian Bear and Serious Mass are both popular supplements among those who want to build lean muscle, but Russian Bear is not as well-known.

There aren’t many online reviews of it, and it took me a while to try it. I have used Serious Mass before, so here’s how the two compare (and contrast):

Russian Bear

  • 370 calories per serving
  • 19g protein
  • 55g carbs
  • Rich in minerals and vitamins
  • Contains alanine, arginine, and leucine

While taking Russian Bear, I was able to notice that it’s more drinkable than Serious Mass, even though it’s still too sweet for my taste. It blends nicely with milk, and while the recommended serving is pretty high (6 scoops), you can easily halve that and still get results.

The supplementation is effective; we tried it with a few really skinny clients, and nothing else worked. They quickly started gaining weight, bulking up with lean muscles at the same time. What’s more, it also promotes muscle recovery and minimizes soreness and fatigue.

Serious Mass

  • 1250 calories per serving
  • 50g protein
  • Contains creatine and glutamine
  • More than 250g carbs

Serious mass is also very effective when it comes to building muscle; it contains vitamins and minerals that support the active body and provide it with essential nutrients.

While this supplement doesn’t contain a lot of fat, it’s loaded with sugar. It also contains sucralose and artificial colors and flavors.

Both of these mass gainers deliver the results, but in my personal experience, Russian Bear is a bit better as it’s more palatable and not as sweet. It contains sugar, but not as much as Serious Mass.

I also like the fact that it provides support for active muscles and improves their recovery, apart from building them.

Serious Mass vs Pro Gainer

Vs Mass Gainer

Both products, these products contain a well-formulated combo of carbs, protein, and important nutrients that help build muscle.

What’s more, they both come from the same brand, so let’s examine what’s the difference.

Pro Gainer

  • 165g serving size
  • 650 calories per serving
  • 85g carbs
  • 60g protein
  • 8.5g fat

This supplement is meant to be used between meals and after workouts since it’s more of a snack, loaded on protein.

The formula isn’t so high on calories, but that means it’s designed for those who’re looking for a steadier weight gain and build lean muscle.

The carbs and amount of fat both also support the idea of a controlled weight increasing.

Serious Mass

  • 334g serving size
  • 1250g calories per serving
  • 252g carbohydrates
  • 50g protein
  • 4.5g fat

This supplementation packs double the calories as Pro Gainer. It’s great for those who want to load up on calories and to get mass quickly; a large amount of carbohydrates supports that same goal.

If you’re trying to choose one over the other, determine what athletic goals do you have. If you want to build lean mass with minimal fat and controlled workouts slowly, Pro Gainer is most likely the supplement you’ll need.

If you want to bulk up fast and get as much as you can into your system, bodybuilding, and lifting weights to gain muscle, Serious Mass is a better choice.

Questions to Ask Before Purchasing a Weight Gain Supplements:

          How Can a Skinny Guy Gain Mass Fast?

The most effective way to bulk up is by eating right and consuming enough calories. Calories give your muscle fuel, which helps you gain muscles.

Learn how many calories you need and start stacking on them. You can gain mass fast with a healthy, calorie-loaded diet and regular workouts with power training that help build muscle. Stack up on weight gainers (that pack carbohydrates, calories, protein, and creatine), and stay hydrated and active. 

When Should I Drink My Mass Gainer?

The best way to know is to check the label, but most users will tell you that the timing isn’t that important. Some people prefer to take it in the morning, and before a workout, others take it right after a workout and even before bed. 

How And When to Take a Weight Gain Powder

Since most products come in powder form, it is best to mix them with water or milk, which helps the supplement to dissolve more easily. Optionally, you can also add it to a shake. The powders come in different flavors so you can choose the best one for your palate. 

Where To Buy Weight Gainers

You can normally find weight gainers in most shops that sell sport supplements all over the world.

Amazon Store

It’s also very easy to find them online. Many larger retailers sell them, as well as the companies that produce them: Amazon, GNC, and at Walmart.

Conclusion. What Brand of Weight Gainer to Choose?

This supplementation can be of great help for a number of people. They can help you build muscles, and lean body mass since they’re designed with a formula that is rich in nutrients your body requires to help you get bigger.

Whether you’re a bodybuilder, an amateur athlete, one of the skinny high school athletes, these supplements can improve muscle mass and weight issues. Even if you’re a vegan, you can use some of them, but not all are vegan-approved.

I’ve listed all the best weight and mass gainers on the market today. I can confirm from personal and professional experience that they provide results and are effective.

But, if I had to choose one top supplement that would be the best choice for the majority of people, I’d have to go with Transparent Labs Mass Gainer.

This is a supplement I personally prefer to use and have recommended it to a number of clients and colleagues since I’ve seen it produce results every single time.

The formula is well developed. It consists of 53g grass-fed protein concentrate, 109g carbs from organic tapioca oat, and sweet potato. What’s more, it also contains creatine, MCT and coconut milk powder, and natural sweeteners. 

With such a list of ingredients, I was immediately convinced to try it. It is made with one of the cleanest formulas out there, and it definitely stands out with the no-nonsense components, zero artificial sweeteners, and additives. Also, it’s a supplement without side effects, which is not uncommon but a very welcome change!

The level of carbs is optimum to provide the best support; fat content is minimal yet healthy. Grass-fed whey is one of the healthiest types of fat you can find. Creatine and MCTs additionally support building lean muscle mass and increase the absorption of nutrients.

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The supplement is versatile; you can drink it before or after a workout, before you go to bed or after you wake up.

It tastes good with milk, even though the flavor isn’t the most delicious one out there. But, at least you know it’s free of artificial flavorings.

Above all, it’s effective, supports, and active body, and all who want to gain muscles. It’ll help you achieve your goals, and you’ll be noticing constant gains in strength and size. I highly recommend it to anyone who’s looking to get real and better results.