Best Lean Mass Gainers Reviewed and Rated

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In a Hurry? Editors choice:
1. Optimum Nutrition – Serious Mass
Test Winner: 1. Optimum Nutrition – Serious Mass
Last Updated: February 04, 2020
By Gleb Oleinik:

This lean mass gainer list was recently updated as part of our ongoing effort to provide useful and accurate information. We added nutritional facts and other key highlights to make it easier to compare different mass gainers and find the product that suits your particular needs best. Check out our reviews of the best lean mass gainers below!

For quick, efficient weight gain and a boost of protein, taking lean mass gainers is a no-brainer.

Lean mass gainers are a great way to speed up the progression of your lean muscle development, and many come with the added benefits of reducing recovery time and adding vital calories and nutrients to your diet.

If you’re ready to take your body composition seriously and boost your muscle gains, you’ve come to the right place. You already know the performance-enhancing benefits of gainers, but now it’s time to take the plunge and start implementing them into your fitness regimen.

You can take your pick from hundreds of gainers, but choose wisely. Our recommendations are the best of the best, so you can’t go wrong with any of the products listed on this page.

Optimum Nutrition
  • Optimum Nutrition
  • 4.8 out of 5
    Our rating
  • High Calorie
  • Price: See Here
Naked Nutrition
  • Naked Nutrition
  • 4.5 out of 5
    Our rating
  • Minimal Ingredients
  • Price: See Here
NOW Foods
  • NOW Foods
  • 4.1 out of 5
    Our rating
  • Plant-Based
  • Price: See Here

We found that lean mass gainers share the same core qualities – they’re high in calories, carbohydrates, and protein. However, it’s the formula of the lean mass gainer that makes it stand out from the competition.

A high-quality and effective lean mass gainer promotes the right kind of gains (i.e. lean muscle), so it should be low in fat and sugar. Many lean mass gainers also contain artificial ingredients for added bulk, calories, and nutrients. These are safe to use, but natural gainers can be just as effective.

We paid close attention to the serving size, length of supply, macronutrients, and micronutrients to narrow our search to the 10 best lean mass gainers on the market.

Choosing the right gainer is the first step, so stick around after you’ve made your selection for everything you need to know about incorporating lean mass gainers into your lifestyle. Right after our reviews for the best products, we give the inside scoop on all things gainer-related, including how to take gainers and practice proper safety with sports nutrition products.

10 Best Lean Mass Gainers

1. Optimum Nutrition – Serious Mass

1. Optimum Nutrition – Serious Mass
Optimum Nutrition’s Serious Mass gainer encourages muscle growth at a consistent rate and reduces recovery time and muscle wastage, making it one of the best supplements for maintaining muscle mass. This product offers a whopping 1,250 calories in each serving, adding significant calories to the diet of intense weight trainers and athletes.
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Highlights

Here are the key points and nutritional breakdown (per serving):

  • Serving size: 334 g
  • Calories: 1250
  • Protein: 50 grams
  • Protein type: Whey, casein, eggs
  • Carbs: 254 grams
  • Fat: 4.5 grams
  • Servings per container: 8-16
  • Creatine: 1 gram
  • Flavor options: Banana, chocolate, peanut butter, strawberry, cookies & cream, vanilla

Benefits

With 25 vitamins and minerals, high protein, creatine, and glutamine, this blend is both nutritious and effective for gaining lean mass. This is a low-fat gainer, so Optimum Nutrition includes “Calories That Count” for the right kind of gains.

Quality & Value

It’s not unusual for lean mass gainers to have fewer servings per container. This product contains 16 servings per 12 lb. (192 oz) container. For the nutrition profile, the premium price is worth it for the quality.

Brand

Optimum Nutrition is one of the leading brands of sports nutrition supplements. They have their own production facilities, and they consistently strive to be the best.

Pros
  • Promotes muscle growth
  • Reduces recovery time
  • Low-fat
  • High-protein
  • Added nutrients
  • Contains creatine
  • Suitable for vegetarians
  • 16 servings per container
Cons
  • Not suitable for vegans
  • Contains artificial ingredients

2. Naked Nutrition – Naked Mass

2. Naked Nutrition – Naked Mass
Naked Nutrition is known for stripping away the marketing techniques and gimmicks down to the bare truth. They use the purest ingredients in their minimalistic formulas, and they are 100% transparent. Their Naked Mass weight gainer contains only three ingredients, making it one of the more natural gainers on the market and one of the top recommendation on our list.
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Highlights

Here are the supplement facts for one serving of Naked Mass:

  • Serving size: 321 g
  • Calories: 1250
  • Protein: 50 grams
  • Protein type: Whey, casein
  • Carbs: 252 grams
  • Fat: 2.5 grams
  • Servings per container: 11
  • Does not contain creatine
  • Flavor options: Unflavored, chocolate, vanilla

Benefits

This product makes it easy to maintain or gain weight with clean ingredients. The complex carbohydrates fuel the body with a steady source of energy, while the protein adds muscle mass and strength.

Quality & Value

This is one of the most expensive options on our list, but high quality comes with a premium price. The minimal-yet-clean ingredients and no artificial additives make this product worth the value.

Brand

Naked Nutrition is committed to health and transparency. They oppose big agribusiness that promotes bottom-line additives. Instead, they source high-quality and effective ingredients that yield results without sacrificing health.

Pros
  • Contains minimal ingredients
  • No artificial ingredients
  • Contains 11.5g BCAAs per serving
  • Free of growth hormones
  • High calorie
  • High protein
  • Non-GMO
  • Gluten-free
  • Soy-free
  • Low-fat
Cons
  • Contains only 11 servings
  • Not suitable for vegans
  • Doesn’t contain vitamins and minerals

3. NOW Foods – NOW Sports Carbo Gain

3. NOW Foods – NOW Sports Carbo Gain
NOW Sports Carbo Gain from Now Foods is a complex carbohydrate muscle supplement that is made without artificial ingredients or sweeteners. In fact, this gainer contains only one ingredient – non-GMO corn – making it the only vegan option on our list. For the affordable price, this is the Best Value lean mass gainer.
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Highlights

Here’s the nutritional breakdown and key facts per serving:

  • Serving size: 63 g
  • Calories: 240
  • Protein: 0 grams
  • Carbs: 60 grams
  • Fat: 0 grams
  • Servings per container: 14-86
  • Does not contain creatine
  • Flavor options: Unflavored

Benefits

Because this product is fat-free, users can expect to put on the right kind of mass. It also contains glucose molecules that are easy for the body to digest and use for energy. This product is a good source of calories and healthy carbohydrates.

Quality & Value

The NOW Sports Carbo Gain is the Best Value on our list because it’s the most affordable option. The value is great for the price, amount of servings, and clean ingredients. The company has also taken the extra steps of becoming GMP and Informed-Choice certified for quality assurance.

Brand

NOW Foods is a trusted brand of health supplements. They don’t specialize in sports nutrition products, but they’re a versatile health company with safe and effective products.

Pros
  • Only one ingredient
  • No artificial ingredients
  • Non-GMO
  • Easy to digest
  • Contains 14 servings
  • Suitable for vegetarians and vegans
  • Kosher certified
  • GMP certified
  • Informed-Choice certified
  • Fat-free
  • Gluten-free
  • Allergen friendly
Cons
  • Not a significant source of protein
  • Doesn’t contain added nutrients

4. MRM – Gainer with Probiotics

4. MRM – Gainer with Probiotics
MRM Gainer with Probiotics is a natural gainer that’s hormone-free and antibiotic-free. Many gainers and high-protein supplements can be difficult to digest, so MRM has added probiotics and enzymes for easy absorption and digestion. This gainer is made with protein that’s naturally high in essential amino acids and branched-chain amino acids.
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Highlights

Here are the supplement facts for one serving:

  • Serving size: 84 g
  • Calories: 350
  • Protein: 25 grams
  • Protein type: Whey, casein
  • Carbs: 48 grams
  • Fat: 6 grams
  • Servings per container: 18
  • Does not contain creatine
  • Contains probiotics
  • Flavor options: chocolate

Benefits

A special combination of ingredients promotes muscle growth to increase lean body mass. This gainer also has unique digestive benefits because of added probiotics and digestive enzymes. This can alleviate digestive discomfort that may accompany sports nutrition supplements.

Quality & Value

This product contains 18 servings, making the MRM Gainer with Probiotics great value in comparison to other gainers that contain fewer servings. The natural ingredients make this a better value for the quality.

Brand

MRM occupies a unique space in the sports nutrition industry because they advocate for alternative health care that’s “Inspired by Nature, Supported by Science.”

Pros
  • All-natural
  • Gluten-free
  • Non-GMO
  • Suitable for vegetarians
  • Contains glutamine
  • Contains probiotics
  • Contains amino acids
  • 25g complete protein
  • Contains 18 servings
Cons
  • Not suitable for vegans
  • Lower in protein than other gainers

5. MHP – Up Your Mass

5. MHP – Up Your Mass
As consumers of health supplements, you may see many lofty claims on products. However, we stand behind MHP’s claim that their Up Your Mass gainer product can add 16 lbs. of lean mass within a five-week period. Those kinds of results require quality ingredients, and the Up Your Mass gainer meets that standard.
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Highlights

The nutritional breakdown per serving is as follows:

  • Serving size: 127 g
  • Calories: 510
  • Protein: 46 grams
  • Protein type: Whey, casein, soy
  • Carbs: 61 grams
  • Fat: 11 grams
  • Servings per container: 17
  • Does not contain creatine
  • Flavor options: Fudge brownie, peanut butter

Benefits

MHP claims that this product helps users gain 16 lbs. of lean mass in 5 weeks. This is due to the high-calorie and high-protein servings. With other nutrients and amino acids, this gainer also improves insulin response for muscle growth.

Quality & Value

Many sports nutrition companies don’t have their own facilities, so quality isn’t a guarantee. MHP products are GMP compliant and tested for quality assurance. They’re also certified by Informed-Choice as Trusted by Sport. MHP takes quality seriously, which is why their products are valued accordingly.

Brand

MHP stands for Maximum Human Performance, which is what this brand has promoted for more than 20 years. The company partners with top athletes and bodybuilders who believe in their sports nutrition products.

Pros
  • Promotes lean mass gain
  • Improves insulin response
  • Contains BCAAs
  • Contains glutamine
  • Suitable for vegetarians
  • Contains added nutrients
  • GMP certified
  • Informed-Choice certified
  • Contains 17 servings
  • Tested for banned ingredients
Cons
  • Contains allergens
  • Not suitable for vegans

6. Optimum Nutrition – Pro Gainer

6. Optimum Nutrition – Pro Gainer
Optimum Nutrition has all your sports nutrition needs including various gainer products to choose from. The Pro Gainer has fewer calories than their Serious Mass gainer, but it’s still high in protein and carbohydrates.
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Highlights

Here are the key points and nutritional breakdown (per serving):

  • Serving size: 165 g
  • Calories: 650
  • Protein: 60 grams
  • Protein type: Whey, casein, eggs
  • Carbs: 85 grams
  • Fat: 8 grams
  • Servings per container: 14-28
  • Does not contain creatine
  • Flavor options: Banana cream pie, double rich chocolate, strawberry cream, vanilla custard

Benefits

This product is formulated with high biological value protein that is easier to digest than other gainer products. It also boosts energy and prevents proteins from being burned as fuel. The added micronutrients boost the lean mass gaining properties of the calories, protein, and carbohydrates for a more effective formula.

Quality & Value

Optimum Nutrition has calculated the body’s physiological needs to gain lean mass, and they’ve developed their products accordingly. They believe this product will result in one pound of lean mass gains in just one week. For the quality and ingredients, this product is a good value.

Brand

Optimum Nutrition is a go-to resource in the sports nutrition industry because of their high-quality and effective products. They offer a range of lean mass gainers, both of which are similar in profile but different in calories and macronutrients.

Pros
  • Contains 24 vitamins and minerals
  • Results within the first week
  • Promotes weight gain
  • High protein
  • Easy to digest
  • Low in sugar
  • Contains glutamine
  • Suitable for vegetarians
  • Contains 14 servings
Cons
  • Not suitable for vegans
  • Contains allergens like milk, wheat, and soy

7. BSN – True-Mass

7. BSN – True-Mass
BSN’s True-Mass is a premium protein-carb complex that encourages optimum absorption over a longer period so that the body can develop as much lean muscle as possible.
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Highlights

Here’s the nutritional info per serving for the regular and large size mass gainer:

  • Serving size: 165-314 g
  • Calories: 704-1220
  • Protein: 46-50 grams
  • Protein type: Whey, casein, eggs
  • Carbs: 90-215 grams
  • Fat: 17 grams
  • Servings per container: 15-16
  • Does not contain creatine
  • Flavor options: Chocolate milkshake, cookies & cream, strawberry milkshake

Benefits

BSN’s True-Mass gainer offers a convenient solution to athletes and bodybuilders who need to add calories and protein into their diets quickly. The carbohydrate blend adds calories and carbohydrates to support intense training and the protein blend adds amino acids to reduce recovery time.

Quality & Value

This product doesn’t contain any vitamins or minerals, and it’s slightly more expensive than other lean mass gainers. However, it’s made by a trusted and award-winning brand.

Brand

BSN is used by top athletes and bodybuilders, and they are a global leader in the sports nutrition marketplace. Their products have won more than 35 awards, which is more than any other company in the industry.

Pros
  • Supports intense training
  • Promotes lean mass gains
  • Reduces recovery time
  • Boosts energy
  • High calorie
  • High protein
  • Contains 10g of BCAAs
  • Contains 16 servings
Cons
  • Not suitable for vegans
  • Doesn’t contain micronutrients

8. Universal Nutrition – Real Gains

8. Universal Nutrition – Real Gains
Universal Nutrition’s Real Gains weight gainer is a whey-based mass gainer that is specially formulated with complex carbohydrates to stimulate lean mass gains. This formula is especially helpful for athletes to increase weight during bulk season. Even though it’s high in dairy-based protein, it contains easy-to-digest fiber and inulin.
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Highlights

Here are the main nutrition facts for one serving:

  • Serving size: 155 g
  • Calories: 602
  • Protein: 53 grams
  • Protein type: Whey, casein
  • Carbs: 84 grams
  • Fat: 6 grams
  • Servings per container: 11-31
  • Does not contain creatine
  • Flavor options: Banana ice cream, chocolate ice cream, chocolate mint, cookies & cream, mint chocolate chip, strawberry ice cream, vanilla ice cream

Benefits

Universal Nutrition’s Real Gains weight gainer promotes lean weight gain with its potent high-protein and amino acid profile formula. It’s also easily digestible and can be used during bulk season.

Quality & Value

This is a high-quality lean mass gainer, but it only contains approximately 11 servings. Therefore, the value isn’t as good as other products. However, it may be worth the price for the high concentration and amino acid profile.

Brand

Universal Nutrition has been a trusted brand in sports nutrition since 1977. They have a range of cutting-edge products and supplements specifically formulated for athletic performance and bodybuilding results.

Pros
  • Potent formula
  • Promotes muscle growth
  • Contains amino acids
  • Contains healthy fats
  • Contains flaxseed powder
  • Easy to digest
  • GMP certified
  • Contains fewer artificial ingredients
Cons
  • Contains allergens
  • Contains only 11 servings
  • Not suitable for vegans

9. Muscle Milk – Gainer

9. Muscle Milk – Gainer
One of the most well-known brands in the sports nutrition marketplace is Muscle Milk. Their gainer is a tried-and-true product that has kept its great reputation for powering through workouts and providing key nutrients. This product is more than just protein, as it contains many vitamins and minerals.
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Highlights

Here are the supplement facts for one serving of the gainer:

  • Serving size: 162 g
  • Calories: 650
  • Protein: 32 grams
  • Protein type: Whey, casein
  • Carbs: 109 grams
  • Fat: 9 grams
  • Servings per container: 14
  • Does not contain creatine
  • Flavor options: Chocolate, cookies n’ creme, vanilla

Benefits

Muscle Milk contains both slow and fast release proteins, so it promotes a positive protein balance in the body. This product is specially designed for hard gainers, making it an effective source for lean gains and strength.

Quality & Value

The gainer by Muscle Milk is one of the most affordable lean mass gainers on the market, so it’s a great value for a trusted brand with key ingredients.

Brand

Muscle Milk is one of the most recognizable sports nutrition brands and has been developing athletic performance products since 1998. They are experts in protein products that taste great and appeal to the active consumer.

Pros
  • Promotes protein balance in the body
  • Contains vitamins and minerals
  • Encourages lean muscle gains
  • Encourages strength
  • Low sugar
  • High protein
  • Gluten-free
  • Trusted brand
  • Suitable for vegetarians
  • Contains 14 servings
Cons
  • Not suitable for vegans
  • Contains artificial flavors

10. Dymatize – Super Mass Gainer

10. Dymatize – Super Mass Gainer
This product is a lean mass gainer and multivitamin in one. With your daily need for protein, iodine, and calcium, Dymatize’s Super Mass Gainer packs in the calories and nutrients. Many lean mass gainers or protein powders have a gritty texture that’s difficult to work with, but this powder is shaker cup friendly, so it’s perfect for on-the-go shakes.
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Highlights

Here are the key facts and nutritional breakdown (per serving):

  • Serving size: 333 g
  • Calories: 1280
  • Protein: 52 grams
  • Protein type: Whey, casein
  • Carbs: 245 grams
  • Fat: 10 grams
  • Servings per container: 8
  • Creatine: 1 gram
  • Flavor options: Cookies & cream, gourmet vanilla, rich chocolate

Benefits

This product promotes quick gains and strength. It’s one of the highest calorie gainers on our list, so it can supplement any well-rounded diet for muscle mass growth. The high protein content also promotes sustainable muscle building, and the BCAAs stimulate protein synthesis.

Quality & Value

The gainers that we tested typically contained at least 12 servings, but this product only contains 8. It has a cheaper price tag but for fewer servings. However, with high calories, high protein, and added micronutrients, it’s a two-in-one product that’s worth the value.

Brand

Dymatize products are developed by a team of scientists to deliver maximum results safely. Chip Smith Performance Systems–a world-class training facility where elite athletes go to train–chooses Dymatize as their official sports nutrition supplement brand.

Pros
  • Promotes protein synthesis
  • Encourages lean mass gains and strength
  • Contains vitamins and minerals
  • High calorie
  • High protein
  • Contains 17g of BCAAs
  • Shaker cup friendly
  • Suitable for vegetarians
  • Used by elite athletes
Cons
  • Contains only 8 servings
  • Contains allergens
  • Not suitable for vegans


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