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Bodybuilders often say “If you wanna get big, you gotta eat big.” But, if you’ve ever watched any “I Ate Like The Rock” videos, you know that consuming several thousand calories every day can be difficult.  

That’s why many trying to put on muscle mass prefer high-calorie mass gainers, as it’s much easier and quicker to get your carbohydrates, protein, and fats from a shake than from plate after plate of food. 

Don’t start chugging just yet, though. We’ll break down our picks for the best mass gainers on the market today, and give you a dietitian’s take on whether you should take one in the first place.

Expert Reviews by Nutrition Coaches and Dietitians

I have this thing I call “the bike store philosophy,” which essentially means that if you want a bicycle you go to a bike shop and not a store like Wal-Mart or Target. The bike store employees can give you a better idea of the perfect bike for you because they work with bicycles every day and are trained to know everything about them. 

So if you’re looking for the best pre-workout or mass gainer, you want to go to a place where people know what they’re talking about—and that’s us. 

I’m a certified nutrition coach who’s written about supplements for many years, and we’ve also enlisted the help of Laila Ouldibbat, a New York City-based registered dietitian who’s pursuing a Ph.D. in Biological Sciences, to give us an intricate understanding of how these supplements work.  

The 8 Best Mass Gainers 

Best Mass Gainer Protein Powder: Transparent Labs Mass Gainer

Good for: Anyone who wants to know everything that’s in their mass gainer supplement 

Transparent Labs Mass Gainer
Transparent Labs Mass Gainer

Transparent Labs Mass Gainer is formulated with pure ingredients designed to support lean muscle mass for training and weight gain. Offering 760 calories from 53 grams of protein, 109 grams of carbohydrates, and 13 grams of fat per serving, Mass Gainer is a naturally derived supplement free from artificial ingredients.The protein is sourced from a grass-fed whey concentrate, a fast-digesting form of protein that causes minimal, if any, gastrointestinal distress. Towards that end, since there is no added soy, sugar, sucralose, or artificial coloring you can rest assured you are taking in high-quality ingredients attractive to people on restrictive or clean diets. Available in a Sweet Vanilla and Chocolate Donut flavor, users appreciate the taste that is not overly sweet or chalky.Unlike some other mass gainers on the market, Transparents Lab’s carbohydrates come from natural sources: tapioca, oats, and sweet potatoes. Unfortunately, the protein to carb ratio is a bit lower at only 1:2, which could be a drawback to those looking for a higher carb count. But you will find 3,000 milligrams of creatine monohydrate included in the ingredient list, which supports the growth of lean muscle mass.Another nutritional consideration is that Mass Gainer is loaded with 7 grams of saturated fat, which comprises 35% of the recommended daily intake. Those with cholesterol concerns may want to consider alternatives. It is also one of the pricier supplements on the market coming in around $5.13 per serving.* These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Pros:

  • No artificial ingredients or added sugars
  • Discloses precise measurements of all ingredients 
  • Has 3 g of Vitafiber, which may promote optimal digestion 

Cons:

  • Low in vitamins and minerals and may require additional supplementation  
  • High in cholesterol, at 140 mg per serving
  • Only available in two flavors 

Transparent Labs lives up to its name by not only letting you see everything that goes into its supplements, but how much of each ingredient goes into every product (unlike other companies that only list a “proprietary blend” of ingredients in undisclosed amounts). 

When it comes to Transparent Labs Mass Gainer, we like what we see. This supplement is made with natural, high-quality ingredients such as sweet potato, contains zero added sugar, and has 3 grams of creatine monohydrate, which has been shown to support strength and recovery.  

An image of Transparent Labs Mass Gainer

The 1:2 protein-to-carb ratio means it has enough non-protein calories that can be used for energy expenditure, allowing the protein sources to be used for building muscle.

“When you do not have enough non-protein calories, such as carbohydrates, the protein sources can actually be used as energy and not for muscle mass,” Ouldibbat says. 

There are also 3 grams of VitaFiber, a type of fiber made from plant starches that has been linked to digestive benefits, Ouldibbat explains. Mass gainers can sometimes cause upset stomachs and other digestion issues because you’re consuming so many calories in a short amount of time.  

Those with heart issues should know this mass gainer has 140 milligrams of cholesterol per serving, which is very high. It’s also very low in vitamins and minerals, so be sure you get those nutrients from your other meals.  

GGR’s editor and expert product tester Nicole Davis tried the Chocolate-Glazed Donut flavor of Transparent Labs mass gainer and said it dissolved well and had a good consistency. She also said it tasted like a donut, which sounds like a plus.

Price per serving$5.13
Total calories 730
Protein, Carbs, Fat*51 g, 106 g, 12 g 
FlavorsSweet Vanilla and Chocolate-Glazed Donut

* Based on Sweet Vanilla flavor. Nutritional content varies by flavor

Best Tasting Mass Gainer: Optimum Nutrition Serious Mass

Good for: Those looking for a tasty weight gainer supplement 

Optimum Nutrition Serious Mass
Optimum Nutrition Serious Mass

If you’re looking for a high-calorie, nutrient-dense mass weight gainer, Optimum Nutrition’s Serious Mass may be a good choice for you. This supplement contains 1,250 calories per serving with 50 grams of protein, 252 to 254 grams of carbs, and less than 5 grams of fat in four flavors: Chocolate, Chocolate Peanut Butter, Strawberry, and Vanilla. Additionally, there are 3 grams of creatine monohydrate, which effectively supports lean muscle growth.This weight gainer does contain artificial ingredients including sucralose, which may matter to some people. While users appreciate the taste, Serious Mass has 9 grams of added sugar for a total of 20 grams per serving which may be a dealbreaker for some. However, Serious Mass powder is packed with 25 essential vitamins and essential minerals offering micronutrients not always seen in weight gainers.This product mixes best with cold water or in a blender. While most users find the mixability acceptable, it does leave some lumps if not mixed in a blender. Mix this powder with some added fruit, peanut butter, or supplement of your choice or take it in solo for a serious dose of extra calories.* These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Pros:

  • Has high amounts of 25 vitamins and minerals   
  • More than 250 g of carbs per serving, which can help refuel glycogen stores and fuel intense workouts *
  • Contains recommend creatine dose, which could help support muscle strength and size *

Cons:

  • Contains synthetic and artificial ingredients  
  • Has 9 g of added sugar per serving, and some find it overly sweet  
  • Some complaints of poor mixability 
  • Expensive, at more than $6 per serving (depending on what size you order)

Although mass gainers are often sold in flavors like “Campfire S’Mores” and “Birthday Cake,” not all of them taste very good. If you’re someone who can’t force down a bad-tasting shake, we recommend Optimum Nutrition Serious Mass. 

There may only be four flavor options, but the reviews for all of them are positive except for those who find it a bit too sweet (it does have nine grams of added sugar per serving). 

But for those with a sweet tooth, it’s a great option. 

And its nutrition content allows you to have your chocolate peanut butter shake and drink it, too. It’s one of the few supplements on this list with a long and varied list of vitamins and minerals, many of which are more than the daily required amounts. The protein-to-carb ratio is 1:5, which is great for those looking to fuel up or replenish their glycogen stores. *

If you’re serious about finding organic and all-natural supplements, this isn’t for you. Optimum Nutrition uses synthetic sweeteners and soy-based emulsifiers (which is used to help with taste and prolong shelf life). There’s nothing inherently bad about these ingredients, but it might matter to some people.  

Price per serving$6.12
Total calories 1,250
Protein, Carbs, Fat*50 g, 253 g, 4 g
FlavorsChocolate, Chocolate Peanut Butter, Strawberry, Vanilla

* Based on a 6-pound bag of chocolate peanut butter. Nutritional content and price will vary by order 

Best Vegan Mass Gainer: Naked Nutrition Vegan Naked Mass

Good for: Plant-based eaters or those who look for gainers with minimal ingredients 

Naked Nutrition Naked Mass
Naked Nutrition Naked Mass

If you’re looking to pack on the pounds without putting a ton of artificial ingredients into your body, Naked Mass is a high-quality weight gainer worth considering. Formulated from only three clean ingredients, this product is cold-pressed resulting in a good-tasting powder that effectively promotes muscle growth and weight gain. Each serving contains 1,250 calories from 50 grams of protein, 2.5 grams of fat, and 252 grams of complex carbohydrates.Naked Mass is formulated from whey, casein, and organic maltodextrin to create a blend of natural and complex carbohydrates with fast-absorbing, clean protein. While this product is free from artificial ingredients, it does not fall short on taste. In fact, users rave over the taste and mixability, both of which can be hard to come by in powder supplements. Additionally, there are three flavors to choose from available in both vegan and regular: unflavored, chocolate, and vanilla). This product is free from GMO, soy, and dairy making it a good alternative for those with dietary restrictions.Packed with 11.5 grams of BCAAs, Naked Mass also provides the vital proteins you need to promote lean muscle mass. It is third party-tested by Informed Choice. Although it falls on the higher end of the price range, its clean ingredients and good taste may be worthy investment.* These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Pros:

  • Minimal ingredients used (some flavors only have three) 
  • Contains all 9 essential amino acids needed for muscle growth (not always a guarantee with plant-based products) 
  • Uses complex carbohydrates
  • Soy- and gluten-free   

Cons:

  • One of the more expensive options at $5.90 per serving 
  • Only 11 servings per container 
  • Very few vitamins and minerals, and may require further supplementation 

Omnivores tend to have the most options in the supplement aisle, while plant-based people often struggle to find products that mesh with their lifestyle. Enter: Naked Nutrition’s Vegan Naked Mass. 

Plant-based protein often lacks all the essential amino acids (building blocks of protein that must be obtained through your diet) needed for muscle growth, but you’ll find every one in this mass gainer. 

It does have some branched-chain amino acids, Ouldibbat says, which are vital for protein synthesis in the body, but not as much as our other options (a BCAA supplement may help you get the daily dose you need). 

An image of Naked Nutrition Naked Mass mass gainer

It can also work for people with other food restrictions, as it’s free of dairy (duh), gluten, genetically modified organisms (GMOs), and soy. There are also minimal ingredients used in all flavors (there are six total), with some only containing three. 

There’s a 1:5 protein-to-carb ratio, which takes care of your macronutrient needs. When it comes to micronutrients, however, you should know this only contains a handful and not in high amounts. 

While it’s not the most expensive mass gainer on the market, the $5.90 per serving cost is on the higher end of our list. Plus, you’re only getting 11 servings per container, so this won’t last you quite as long as our other options.  

Nicole tried this mass gainer and thought it blended well and tasted neutral, so it would be fine mixed in with milk or another beverage. She did say it got a bit foamy, which wasn’t a dealbreaker, but just something to note.

Price per serving$5.90
Total calories 1,230
Protein, Carbs, Fat*50 g, 248 g, 4 g
FlavorsUnflavored Weight Gainer, Chocolate Vegan Weight Gainer, Vanilla Vegan Weight Gainer, Unflavored Weight Gainer Protein, Chocolate Vegan Weight Gainer Protein, Vanilla Vegan Weight Gainer Protein,  

* Based on unflavored weight gainer. Nutritional content and price varies by flavor 

Best Lean Mass Gainer: BSN True Mass 

Good for: Anyone who wants a relatively low-calorie mass gainer compared to others

BSN True Mass
BSN True Mass

BSN True Mass is a lower-calorie, high-protein weight gainer best suited for those seeking lean gains. Featuring a premium protein blend inclusive of essential amino acids and BCAAs, True Mass provides 50 grams of protein in a single serving. This higher protein count does not come with a significantly high calorie count as seen in most weight-gainer supplements. With 700 to 710 calories, 85 to 90 grams of carbohydrates, and 18 to 19 grams of fat per serving, True Mass is a good-tasting way to increase calories in between meals throughout the day.Part of True Mass’ great taste, mixability, and consistency is due to the higher fat content. Reviews state that this powder easily blends into a milkshake-like consistency making for a tasty treat. The fat is primarily medium chain triglycerides which are considered to be a healthy fat that will keep you full for longer. Unfortunately, there are artificial ingredients with sucralose on that list, which may be important for some. If you prefer a clean supplement, this may not be the weight gainer for you.* These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Pros:

  • Lower caloric content compared to other gainers may help support lean muscle growth without excess fat accumulation 
  • Diverse protein blend to support muscle growth and keep you fuller for longer 
  • Has medium chain triglycerides, which can help support energy 

Cons:

  • Contains a lot of artificial sweeteners  
  • Carbohydrate content is all maltodextrin, which is a processed carb with no nutritional value
  • Doesn’t have many vitamins and minerals

If you’re looking to add size to your physique but don’t want to look like the bodybuilding mass monsters of the 1990s (*cough* Ronnie Coleman *cough*), go for BSN True Mass. There are 700 calories per serving, which is still a lot, but lower than most mass weight gainers.

This can still help you achieve a caloric surplus (when the amount of calories you consume is greater than what you expend in a day) without risking excess fat gain. Or, as Ouldibbat puts it, it “supports lean muscle mass growth and not just mass.” 

The protein-to-carb ratio is 1:2, which is on the lower end of what most mass gainers contain, but that’s what you want when your goal is lean muscle gains. 

An image of BSN True Mass mass gainer

You get eight different high-quality protein sources (including casein and whey protein), all of which, Ouldibbat says, are not only easily digestible but also take longer to digest. This helps keep you fuller for longer, thereby making it easier to avoid extra calorie intake throughout the day.

There are a lot of artificial ingredients, which might matter to some, and its sugar content is the highest on our list: 15 grams. It contains few sources of vitamins and minerals. 

Nicole tried the Chocolate Milkshake flavor and said it tasted OK, but the consistency is very thick if you follow the directions. You may need to add more liquid than indicated if you prefer a thinner consistency.

Price per serving$4.37
Total calories 700
Protein, Carbs, Fat*50 g, 85 g, 18 g
FlavorsVanilla Ice Cream, Cookies & Cream, Chocolate Milkshake, Strawberry Milkshake 

* Based on a 16-serving container of Vanilla Ice Cream. Nutritional content and price will vary by size and price. 

Best Mass Gainer for Bodybuilding: Rival Nutrition Clean Gainer

Good for: Bodybuilders who want to create a large, yet aesthetic physique 

Rival Nutrition Clean Gainer
Rival Nutrition Clean Gainer

Rival Nutrition Clean Gainer is one of the lower-calorie weight gainers you will find on the market. Each serving provides approximately 560 calories, 30 grams of milk protein, 99 grams of complex carbohydrate, and 5 grams of fat making it a good option for those looking to add lean muscle mass. Formulated primarily from clean ingredients, Clean Gainer delivers a combination of full-spectrum dairy proteins, an eight-source carbohydrate blend, and naturally derived essential fat sources.This powder does contain both sucralose and Stevia, which could be off-putting to those who prefer to avoid these sweeteners. However, users appreciate the taste of all six flavors and there are virtually no reviews indicating any effect on digestion, a common side-effect of sucralose. Rival Nutrition Clean Gainer mixes almost instantaneously and can be taken on its own or combined with higher-calorie ingredients for more calories. Compared to other weight gainers, the protein count falls on the low side though.* These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Pros:

  • Tested for banned substances  
  • Has a high protein:carb ratio, allowing protein calories to go toward muscle mass and not for energy 

Cons:

  • Doesn’t contain creatine, though that may be good for bodybuilders looking to cut weight
  • Contains few vitamins and minerals, may require further supplementation 
  • Some reviews complain of rancid-smelling powder 

Nutrivo, Rival Nutrition’s parent company, has decades of experience in the sports nutrition industry, so it’s no surprise that Rival Nutrition’s Clean Gainer is our go-to choice for competitive bodybuilders. 

“Its claim to fame is the ‘clean’ sources for a more ideal muscle mass,” Ouldibbat says. In other words, this mass gainer is geared toward those looking to create a sizable, yet aesthetically pleasing physique. 

To be clear, Ouldibbat and we think this is best for bodybuilders who are in a “cutting” phase, or trying to lose excess fat while preserving and toning lean muscle mass. One reason for this is the omission of creatine, which is good for muscle strength and size but causes some to gain excess water weight, creating a puffier physique. 

An image of Rival Nutrition Clean Gainer mass gainer

There’s a 1:3.3 protein-to-carb ratio, which is good for those who don’t want an extreme caloric surplus. The fat blend is made of medium-chain triglycerides, often called the “good fats,” that may help with boosting energy levels. 

There aren’t many vitamins and minerals present in this mass gainer, and there are several artificial ingredients. On the bright side, the 4 grams of added sugar is on the lower end of what’s in most mass gainers. 

The Chocolate Fudge flavor of Clean Gainer was Nicole’s favorite-tasting mass gainer on our list—she said it reminded her of hot chocolate. It had a nice consistency and dissolved well with no clumps, too.

Price per serving$4.37
Total calories 560
Protein, Carbs, Fat30 g, 97 g, 4.5 g
FlavorsCampfire S’mores, Chocolate Peanut Butter, Cookies & Cream, Cinnamon Toast Cereal, Chocolate Fudge, Soft Serve Vanilla

* Based on a 5-pound container of Campfire S’mores. Nutritional content and price will vary by size and price.

Best Budget Mass Gainer: Mutant Mass

Good for: Those looking for a mass gainer with a lower cost-per-serving 

Mutant Mass
Mutant Mass

Mutant Mass is a clean high-calorie weight gainer specifically designed for bodybuilders and weightlifters. Each serving of this supplement is packed with 1,100 calories, 56 grams of protein, 192 grams of carbs, and 12 grams of high-quality plant-based fat. The taste is what makes Mutant Mass stand out as consumers rave over both the consistency and taste of all six flavors. There are claims by several users that this supplement is the best they have ever tasted.The complex protein blend includes whey protein concentrate, casein, and milk proteins. Although the fat content is high, it is derived from natural sources including MCT oil, avocado, flaxseed, pumpkin seed, and sunflower oils. 192 grams of clean carbohydrates come from whole food sources including barley, sweet potato, rolled oats, and maltodextrin to keep you satiated.Unfortunately, Mutant Mass has a notable sugar count. Topping off just under 20 grams of sugar per serving, it falls on the higher end of sugar content for weight gainers. Overall the macro count is impressive. Jam-packed with whole foods, Mutant Mass will effectively help you pack on some pounds.* These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Pros:

  • One of the most budget-friendly options
  • Made from whole food sources like pumpkin seeds, rolled oats, and sweet potato
  • Rich in essential and BCAAs for optimal muscle growth 

Cons:

  • Contains several thickeners and artificial ingredients  
  • Many reviews claim you don’t get the number of servings the bag lists 
  • Not the best tasting, and some complain it causes digestive problems 

Many of the mass gainers on our list cost about $3-$5 per serving, and that can add up over time. If you’re looking for a more budget-friendly alternative, go for Mutant Mass. Depending on what size bag you order, a one-scoop serving comes out to around $2.50-$3.25. 

That’s much cheaper than other options on our list, which are closer to $4.50 per serving. We should note that many customers stated in online reviews that their bag didn’t come with the advertised number of servings. 

Mutant Mass has a mix of whole food sources and artificial ingredients, and also contains several thickeners. Thickeners are common in cheaper supplements because they’re a low-cost ingredient that adds bulk to a product, and may make it more difficult to mix the powder with your liquid of choice (just think of it as an extra forearm workout). 

An image of Mutant Mass Extreme mass gainer

Ouldibbat points out that the powder also contains lactase and protease enzymes, which can aid in the breakdown and digestion of lactose and protein, respectively. This may lead to better absorption of nutrients, specifically protein.  

Customers love the flavor options, which include Coconut Cream and Chocolate Fudge Brownie, and most are in agreement that they all taste really good, despite the few lumps left after mixing.  

Nicole agreed the solubility of this mass gainer was not great, but, she said she didn’t mind the flavor (Cookies and Cream). It tasted a bit artificial, but she could get over it. 

Price per serving$2.56
Total calories 550
Protein, Carbs, Fat*28 g, 96 g, 6 g
FlavorsChocolate Fudge, Coconut Cream, Cookies and Cream, Strawberry-Banana, Triple Chocolate, Vanilla Cream

* Based on a 5-pound bag of Triple Chocolate. Nutritional content and price will vary by flavor and size.

Best High-Carb Mass Gainer: MuscleTech Mass Tech Extreme 2000

Good for: People who just need a large amount of carbohydrates in their eating regimen

MuscleTech Mass-Tech Extreme 2000
MuscleTech Mass-Tech Extreme 2000

If you’re looking for a supplement that packs in a lot of calories, protein, and carbs into one powder, Mass-Tech Extreme 2000 could be for you. Each serving delivers 2,110 calories from 6 grams of fat, 456 grams of carbs, and 60 grams of protein making this one of the most calorie- and macro-packed weight gainers on the market. In addition, Mass Tech Extreme provides 17.8 g of BCAAs including 8.2 g of L-leucine, as well as clinically validated 10 g of pure creatine monohydrate.But here is the catch—one serving size is huge. It takes six large scoops of powder to make a single serving, which reportedly makes an overly thick drink. Some opt to take in 1 to 2 scoops a few times a day, which waters down the consistency making it easy to drink. You will want to use a blender to mix MuscleTech Mass-Tech Extreme 2000. The 7-pound container holds only 6 servings. So while it looks like a lot of powder, the reality is that it will last less than a week.All that said, if you are serious about adding some bulk, MassTech Extreme 2000 will get the job done. Its lower fat content makes for a good post-workout drink. It does have 22 grams of sugar, which will also be a drawback to some.* These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Pros:

  • Close to or more than three-quarters of total calories come from carbs, depending on flavor (great for people looking to put weight on fast)
  • Includes many vitamins and minerals, and will only require minimal supplementation 
  • Only around 2% of calories come from fat 

Cons:

  • Price per serving can go above $10, depending on what size bag you order 
  • Should only be used by people with high caloric expenditure 
  • Contains or is exposed to many food allergens 

If a high-carb diet is what your coach recommends, there’s no better choice than MuscleTech Mass Tech Extreme 2000. 

Close to or more than three-quarters of the total calories in this mass gainer come from carbs, depending on what flavor you get. The Triple Chocolate Brownie, for example, has 456 grams of carbs, which equates to 1,824 calories from carbs alone! With 60 grams of protein, this has the highest protein-to-carb ratio of any mass gainer on our list at 1:7.6.

An image of MuscleTech Mass Tech 200 mass gainer

This is great for those who are looking to put weight on fast, as it can help you easily achieve a caloric surplus. The addition of five grams of creatine may also help those looking to increase muscle size and strength. * 

Ouldibbat warns that only people with high energy expenditure (such as those with large amounts of lean muscle mass) should take this mass gainer. The high-calorie content is good for those who want to achieve a calorie surplus, but too high of a surplus will result in fat gain and not additional muscle mass.  

Oh, and the serving size is six heaping scoops (you read that right), which may make it difficult to thoroughly incorporate the powder into your water or milk. 

On the bright side, you’ll be getting a large number of vitamins and minerals with this supplement, many of which are present in high amounts. 

Nicole tried this Triple Chocolate Brownie flavor of Mass Tech Extreme and said the consistency was indeed very hard to get over—you need so much liquid to fully dissolve one serving it’s hard to drink it all.

Price per serving$6.66
Total calories 2,110
Protein, Carbs, Fat*60 g, 456 g, 6 g
FlavorsTriple Chocolate Brownie, Vanilla Milkshake

* Based on a 7-pound container of Triple Chocolate Brownie. Nutritional content and price will vary by flavor and size.

Best High-Calorie Mass Gainer: Dymatize Super Mass Gainer

Good for: Anyone looking for a high-calorie mass gainer that’s still good quality 

Dymatize Super Mass Gainer
Dymatize Super Mass Gainer

Each serving size of Dymatize Super Mass Gainer provides between 1,200 and 1,310 calories, 52 grams of high-quality protein, 252 grams of carbohydrates and a blend of 14 vitamins and minerals. The protein blend of whey and casein is intended to support your muscles with immediate and continuous fuel to maximize growth. Available in Rich Chocolate and Gourmet Vanilla, most consumers appreciate the taste.This product does contain artificial ingredients including sucralose, which can cause digestive issues for some. Additionally, each serving has over 20 grams of sugar, 14 of which are added sugars. Dynamize Super Mass Gainer does have BCAAs to enhance muscle growth.As with some other weight gainers on the market, the serving size for Dynamize is overwhelming. One serving size consists of 2.5 cups of powder. Directions recommend mixing it with 24 to 32 ounces of water however, the result is a super thick drink that is hard to get down. Pro tip: Start with half the serving size and mix it with more fluid to get a better consistency.While each container is large, there are only 8 servings per container. Although it has an affordable price tag, you need to consider how often you will need to purchase it.* These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Pros:

  • The 1:4.7 protein:carb ratio is good for adding muscle mass 
  • Has 10.7 g of BCAAs, great for muscle growth and reducing soreness
  • Less than 10% of total calories come from fat

Cons:

  • Not technically the highest-calorie mass gainer, but it has a better macronutrient ratio for those trying to put on weight 
  • Reviews state it’s very thick and difficult to mix  
  • Only contains 1 g of creatine, which is less than half the recommended dose 

Dymatize Super Mass Gainer may not have the highest calorie count, but Ouldibbat says the macronutrient profile is more appropriate for most users. It has a 1:4.7 protein-to-carb ratio, and only 7 percent of total calories come from fat. So the quantity may not be quite as big, but you get good-quality calories. 

An image of Dymatize Super Mass Gainer

When it comes to helping with muscle growth and recovery, it has 10.7 grams of BCAAs, 5.2 of which come from leucine (which has been linked to supporting muscle size). There is only 1 gram of creatine, which is less than half the recommended dose.  

The vitamin and mineral content is subpar, so anyone taking it should make sure to get those nutrients from other meals. 

The only two flavor options are Gourmet Vanilla and Rich Chocolate, and while customers are mostly pleased with the taste, they note that it’s very thick and hard to mix with milk or water. Nicole tried Gourmet Vanilla, and didn’t think it was too thick or hard to mix, especially compared to some other mass gainers on this list. She also really liked the flavor.

Price per serving$4.80
Total calories 1,280
Protein, Carbs, Fat*52 g, 245 g, 10 g
FlavorsGourmet Vanilla, Rich Chocolate 

* Based on a 6-pound container of Gourmet Vanilla. Nutritional content and price will vary by flavor and size. 

How We Chose and Tested the Best Mass Gainer 

With countless options on the market, here are the criteria we used to find the eight best mass gainers. 

Calorie to Macronutrient Ratio

When looking for a mass gainer, you want to make sure it has enough calories to help you achieve a caloric surplus. You’ll also want to see what the macronutrient ratio looks like, or how much protein, carbohydrates, and fat it has. 

As Ouldibbat explained, you want enough non-protein calories to allow for the protein sources to be used for preserving and building lean muscle mass, and not energy. So, unlike protein shakes, you’ll actually want something with lots of carbs. 

You’ll also want to make sure the macronutrients fit into any eating regimen provided by a nutritionist or bodybuilding coach. 

Protein Content 

We wanted to make sure each supplement had enough protein, at least 25 grams, to support muscle growth and recovery. 

Flavor 

Taste is subjective at times, but we wanted to let you know our honest thoughts on how these tasted. 

Mixability 

There are few things worse than a mouthful of dry powder, so we made sure each mass gainer dissolved well in water or milk. 

Price Per Serving

We tried to provide a wide range of options that could fit anyone’s budget. Some products may be cheaper on Amazon than on the company’s website. 

Should I Take A Mass Gainer? 

Not everyone should be reaching for the mass gainer tub during their next supplement store trip. Here’s who should consider taking one, and who shouldn’t. If you’re still not sure whether a mass gainer is right for you, ask a physician or nutritionist. 

Who Should Take a Mass Gainer  

Mass gainers are typically used by bodybuilders, powerlifters, or other competitive athletes who need to increase their weight or size. These athletes may do this to reach a certain weight class, or increase their frame for aesthetic reasons, and is typically used by people who are known as “hard gainers,” or those who struggle with putting on weight. 

Mass gainers are also sometimes used by people who need to gain weight for health reasons. 

Who Shouldn’t Take a Mass Gainer

The excess calories and macronutrients in mass gainers may cause issues for people with certain health issues, Ouldibbat says, including those with organ dysfunction or gastrointestinal problems.  

What to Consider Before Buying a Mass Gainer 

Here’s a quick guide on everything to consider before purchasing a mass gainer. 

Proper Nutrition

Mass gainers are a supplement, which means they’re used in addition to your regular nutritional routine. You still need to make sure you’re getting the right amount of macronutrients (protein, carbs, and fats) and vitamins and minerals from all the food you ingest throughout the day, and that includes the mass gainer you may take.

Micronutrients

Bodybuilders and other athletes who often use supplements may lack certain vitamins and minerals, according to research, which can lead to health issues such as anemia and scurvy. 

If you’re not getting the proper amount of vitamins and minerals from your other meals and they’re not present in your mass gainer, you may need to take additional supplements to avoid any issues.  

Training Intensity 

“The healthiest and safest way to utilize a mass gainer is in conjunction with exercise,” Ouldibbat says. “An immediate excess of calories, protein, fat could be harmful to some of our organs, and should be a means of supporting mass gain alongside increased energy expenditure.”

Sleep 

Sleep is vital to human function and can aid with things like protein synthesis, muscle recovery, and hormone regulation. All these, in conjunction with mass gainers, may help improve your performance and your physique. 

Calories 

To gain mass, you need to be in a caloric surplus (when the number of calories you consume is greater than what you expend in a day). Your nutritionist or coach will work with you to find the surplus that works best for you, which will tell you how many calories you need from your mass gainer. 

Protein 

Make sure your mass gainer has enough protein to support muscle building and recovery. You’ll also want to look at what types of protein are used. Whey protein concentrate and whey protein isolate are some of the most popular forms used, and both have research-backed benefits.   

Carbs

Carbs are not only your body’s preferred energy source, but they also replenish your glycogen stores to help make your muscles look fuller and perform better in the gym. 

The increased energy stores may also help put your body in an anabolic state, which is best for those looking to increase their muscle mass. 

Benefits of Mass Gainers 

The biggest benefit of mass gainers is that it allows you to eat a large amount of calories in a quick and more easily digestible fashion. Preparing and drinking a 1,200-calorie shake is much easier than cooking and eating a plate with the same amount of calories. 

When Should I Take a Mass Gainer? 

Mass gainers can be taken as a pre-workout shake to help fuel your workouts (especially if they contain slow-digesting complex carbs), or as a post-workout meal replacement. If you’re planning to drink it before your workout, be sure to ingest it 60 to 90 minutes beforehand to prevent possible GI distress.

FAQs

Which mass gainer is best?

It’s going to depend on your training goal. Here are our eight top picks based on different people’s needs. 

Do mass gainers actually work? 

Mass gainers can help people put on weight, so long as the rest of their diet and training routine is on par. You’ll need to make sure you’re in a caloric surplus, or eating more calories than 

you’re expending, and training in a way that allows you to best utilize the calories and macronutrients in a mass gainer. 

Should skinny guys take mass gainer?

Anyone, regardless of their weight or size, should consult a nutritionist or physician before beginning a supplement regimen.

* These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

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