Best Mass Gainer for Skinny Guys of 2019

Best Mass Gainer for Skinny Guys of 2018
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If you’re trying to build muscle but don’t have a body that lends itself to that goal, we recommend trying a mass gainer to help you put on weight that can then be converted into muscle.

Today, we’re going to be looking at some of the best mass gainers for skinny guys and “hard gainers.”

Comparison Chart

OPTIMUM NUTRITION Serious Mass Weight Gainer Protein Powder, Chocolate, 12 Pound
Dymatize Super Mass Gainer Protein Powder, 1280 Calories & 52g Protein, Gain Strength & Size Quickly, 10.7g BCAAs, Mixes Easily, Tastes Delicious, Gourmet Vanilla, 12 lbs
Natures Best Isopure Mass, Dutch Chocolate, 7 Pound
CytoSport Cyto Gainer Protein Powder, Chocolate Malt, 54g Protein, 6 Pound
NOW Sports Nutrition, Carbo Gain (Maltodextrin), 8-Pound
OPTIMUM NUTRITION Serious Mass Weight Gainer Protein Powder, Chocolate, 12 Pound
Dymatize Super Mass Gainer Protein Powder, 1280 Calories & 52g Protein, Gain Strength & Size Quickly, 10.7g BCAAs, Mixes Easily, Tastes Delicious, Gourmet Vanilla, 12 lbs
Natures Best Isopure Mass, Dutch Chocolate, 7 Pound
CytoSport Cyto Gainer Protein Powder, Chocolate Malt, 54g Protein, 6 Pound
NOW Sports Nutrition, Carbo Gain (Maltodextrin), 8-Pound
$46.70
$46.74
Price not available
$44.28
$20.99
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OPTIMUM NUTRITION Serious Mass Weight Gainer Protein Powder, Chocolate, 12 Pound
OPTIMUM NUTRITION Serious Mass Weight Gainer Protein Powder, Chocolate, 12 Pound
$46.70
Dymatize Super Mass Gainer Protein Powder, 1280 Calories & 52g Protein, Gain Strength & Size Quickly, 10.7g BCAAs, Mixes Easily, Tastes Delicious, Gourmet Vanilla, 12 lbs
Dymatize Super Mass Gainer Protein Powder, 1280 Calories & 52g Protein, Gain Strength & Size Quickly, 10.7g BCAAs, Mixes Easily, Tastes Delicious, Gourmet Vanilla, 12 lbs
$46.74
Natures Best Isopure Mass, Dutch Chocolate, 7 Pound
Natures Best Isopure Mass, Dutch Chocolate, 7 Pound
Price not available
-
CytoSport Cyto Gainer Protein Powder, Chocolate Malt, 54g Protein, 6 Pound
CytoSport Cyto Gainer Protein Powder, Chocolate Malt, 54g Protein, 6 Pound
$44.28
NOW Sports Nutrition, Carbo Gain (Maltodextrin), 8-Pound
NOW Sports Nutrition, Carbo Gain (Maltodextrin), 8-Pound
$20.99

Best Mass Gainer for Skinny Guys Reviews

1. Optimum Nutrition Serious Mass

OPTIMUM NUTRITION Serious Mass Weight Gainer Protein Powder, Chocolate, 12 Pound

Optimum Nutrition is one of the most popular manufacturers of weight gain supplements in the sports nutrition industry and its products are used by casual gym goers and professional athletes alike. The brand’s Serious Mass formula can be used by hard gainers from both categories and, as its name suggests, will put you on the road to some serious gains.

Serious Mass Review

Optimum Nutrition Serious Mass promises 1,250 calories per serving when mixed using water, but if you need to gain weight fast, you can mix it with low-fat milk, opening the door to a staggering 1,640 calories per serving.

When you’re stocking your body with such a high number of calories, it is imperative that you stay on top of your workouts as complacency and laziness will lead to you gaining fat instead of muscle. Fortunately, Optimum Nutrition Serious Mass comes loaded with carbohydrates – well over 250 grams per serving – to push you through every workout.

A lot of ON customers have complained about Serious Mass tasting worse than the average mass gainer – and mass gainers generally taste pretty bad – while others have reported the results taking longer than expected to show. Some particularly unfortunate Optimum Nutrition customers have even reported this formula causing diarrhea, gas, and other digestive issues. Keep that in mind when looking for the best mass gainer for skinny guys.

OPTIMUM NUTRITION Serious Mass Weight Gainer Protein Powder, Chocolate, 12 Pound
  • High Calorie Weight Gainer: 1,250 Calories per 2 Scoop Serving
  • 50 Grams of Protein per Serving
  • Over 252 Grams of Carbohydrates per Serving
  • 25 Vitamins & Minerals plus Creatine & Glutamine
  • Using an Electric Blender to Add Fresh or Frozen Fruits, Peanut Butter, Nuts & Other Calorie Dense Foods to Boost Your Weight Gain Potential

What's to like about the Optimum Nutrition Serious Mass

  • Can be mixed with milk
  • High in carbohydrates
  • Multiple flavor options

What's not to like about the Optimum Nutrition Serious Mass

  • Chalky taste
  • May cause digestive issues

PROS

  • check
    1,250 calories per serving
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    25 vitamins and minerals

CONS

  • Difficult to mix

2. Dymatize Super Mass Gainer

Dymatize Super Mass Gainer Protein Powder, 1280 Calories & 52g Protein, Gain Strength & Size Quickly, 10.7g BCAAs, Mixes Easily, Tastes Delicious, Gourmet Vanilla, 12 lbs

Dymatize Super Mass Gainer is a great option for professional athletes who are trying to reach a certain weight but need help getting up there. The manufacturer promises that this supplement will bring about “massive gains” in a short period of time and, according to more than one satisfied Dymatize customer, it will do just that.

Dymatize Super Review

If Optimum Nutrition’s Serious Mass formula doesn’t provide enough calories per serving for what you’re trying to achieve, you should put Dymatize Super Mass Gainer at the top of your list. This formula promises 1,260 calories per serving, as well as 52 grams of whey protein and 10.9 grams of BCAAs (branched chain amino acids). Dymatize Super Mass Gainer contains no gluten and will be easier for you to digest, which makes for a fuller absorption of the included vitamins and minerals.

While Dymatize Super Mass Gainer is easy to mix, it does require more water and/or milk to do so than the average weight gain supplement. A number of customers have complained about their shakers overflowing before they even reach Dymatize’s recommended measurements. It’s also worth noting that this formula is a lot higher in sugar than most other mass gainers in its price range​. ​So it should be avoided as the best mass gainer for skinny guys if you’re trying to adhere to a sugar-free diet.

Dymatize Super Mass Gainer Protein Powder, 1280 Calories & 52g Protein, Gain Strength & Size Quickly, 10.7g BCAAs, Mixes Easily, Tastes Delicious, Gourmet Vanilla, 12 lbs
  • 10.7 grams of BCAAs as building blocks, including 5.1g Leucine, as building blocks to help activate Muscle Protein Synthesis
  • 1310 calories and 245g carbs per serving to help even the hardest gainers pack on mass
  • 52 grams of protein per serving (a blend of fast, medium, and slow digesting proteins) for muscle support
  • 17 vitamins and minerals to support balanced nutrition, healthy muscle tissue and muscle recovery

What's to like about the Dymatize Super Mass Gainer

  • Dymatize does not amino spike
  • Multiple flavor options
  • Suitable for teenagers

What's not to like about the Dymatize Super Mass Gainer

  • Requires a lot of mixer
  • High in sugar

PROS

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    1,260 calories per serving
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    Easy-mix formula

CONS

  • Contains soy

3. Isopure Mass

Natures Best Isopure Mass, Dutch Chocolate, 7 Pound

Isopure Mass is made with high-quality ingredients and contains no filler ingredients or potentially harmful additives, putting it very much in line with Isopure’s mission to attain “Purity. Perfection. The best.”

Isopure Mass Review

Isopure Mass is a gluten-free weight gain supplement and won’t aggravate digestive issues or leave you with an upset stomach on your way to the gym. Similarly, it is entirely devoid of lactose, although it can be mixed with milk if you prefer a thick shake and want to increase the calorie content of each serving.

In the manufacturing of this mass gainer, Isopure relies on a complex microfiltration process to ensure 100% whey protein isolate, which has a higher protein content and a lower carbohydrates content than traditional whey protein.

Even when mixed with water, Isopure Mass is quite thick. That’s not to say that this formula will clump and clog the drinking spout of your shaker, but it does have a texture similar to that of melted chocolate, which some people find difficult to stomach. Maybe one of the best mass gainer for skinny guys in 2019.

Natures Best Isopure Mass, Dutch Chocolate, 7 Pound
  • Isopure- the world leader in sport specific nutrition
  • Formulated with only the cleanest, highest quality ingredients available - no fluff or filler!
  • For high performers and all those who take their health seriously

What's to like about the Isopure Mass

  • Lactose-free
  • Multiple flavor options
  • Produced using microfiltration

What's not to like about the Isopure Mass

  • Thick texture
  • Difficult to measure

PROS

  • check
    Gluten-free formula
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    100% WPI

CONS

  • Runs out quickly

4. MUSCLE MILK CytoGainer

CytoSport Cyto Gainer Protein Powder, Chocolate Malt, 54g Protein, 6 Pound

CytoGain takes its name from CytoSport, the company in ownership of MUSCLE MILK, but this formula is very much a MUSCLE MILK formula and furthers the brand’s reputation for success and customer satisfaction. Given that MUSCLE MILK CytoGain can be purchased for less than $40, it is a great choice for skinny guys who have never tried using a weight gain supplement and aren’t quite certain if it is the right avenue for them.

CytoGainer Review

This formula boasts an impressive 54 grams of protein per serving (protein that is derived solely from whey). With such a high percentage of protein in every scoop, this mass gainer will give you the energy needed to turn your extra weight into muscle as it develops so you won’t have to wait to hit the gym.

MUSCLE MILK CytoGain is a lean gainer, which means it has close to ⅓ less carbohydrates than the average mass gainer. Because of its low carbs content, CytoGain requires a little less work to stave off fat than rival products, making it arguably the best mass gainer for busy people whose hectic working lives prevent them from exercising every day.

Of all reported issues with this formula, its chalky taste is the one that comes up most frequently. Some people have reported having to hold their nose when trying to get through a CytoGain shake while others have complained about not being able to keep it down after finishing it. This likely has something to do with the formula’s high lactose content and those who found themselves feeling sick or even vomiting after finishing a shake likely have an undiagnosed intolerance, nonetheless​. It is something to keep in mind in your search of the best mass gainer for skinny guys.

CytoSport Cyto Gainer Protein Powder, Chocolate Malt, 54g Protein, 6 Pound
  • One 96-ounce jar of chocolate malt flavored protein drink mix
  • Contains glutamine-rich partially predigested whey peptides for improved protein synthesis
  • Designed to replenish muscle and liver glycogen after workouts
  • Contains a complex carbohydrate source that is 96.5% sugar free
  • No simple sugars; no fructose; no sucrose

What's to like about the MUSCLE MILK CytoGainer

  • Satisfies hunger
  • Slow-releasing energy
  • NSF certified

What's not to like about the MUSCLE MILK CytoGainer

  • Chalky taste
  • High in lactose

PROS

  • check
    54 grams of protein per serving
  • check
    Gluten-free formula

CONS

  • May cause digestive issues

5. Now Sports Carbo Gain

NOW Sports Nutrition, Carbo Gain (Maltodextrin), 8-Pound

NOW Foods produces a wide range of products for health-conscious consumers, including supplements, essential oils, and natural foods. It even manufactures its own line of pet food, so fitness fanatics can ensure their cats and dogs are just as healthy as they are.

NOW Sports is a division of NOW Foods but has taken on a life of its own thanks to the popularity of its shakes. Carbo Gain is one of those shakes and is the ideal NOW Sports formula for hard gainers and one of the best mass gainer for skinny guys.

Now Sport Review - The ​best ​mass ​gainer for ​skinny ​guys ?


Maltodextrin is a complex carbohydrate composed of glucose polymers. Glucose polymers are essentially chains of glucose molecules that take little effort for the body to digest, which makes for greater absorption and assimilation of nutrients throughout the body.

NOW Sports Carbo Gain derives its maltodextrin from non-GMO corn, so you won’t have to resign yourself to putting potentially harmful substances into your body to get faster results. Despite being high in protein, NOW Sports Carbo Gain contains no traces of meat or animal products, including dairy, and so is suitable for vegetarians and vegans who need some extra help putting on weight.

NOW Sports Carbo Gain is only available in one flavor option, which will be a source of frustration if you struggle to make it through non-flavored shakes. Many who have tried this formula have complained about how difficult it is to mix using a shaker. It seems that Carbo Gain can only be adequately mixed using a blender, so be sure you have one of those before making a purchase.

Sale
NOW Sports Nutrition, Carbo Gain (Maltodextrin), 8-Pound
  • Same trusted quality with a brand new look! Packaging may vary
  • Energy Production*
  • The Informed-Sport seal is your assurance that each and every production run of these NOW Sports products has been tested for banned substances by LGC, a globally recognized assurance program for anti-doping in sports nutrition products. In addition to production run testing, Informed-Sport-certified products are also blind-sampled at the retail level up to four times annually, and testing results can be found at informed-sport.com.
  • GMP Quality Assured: NPA A-rated GMP certification means that every aspect of the NOW manufacturing process has been examined, including our laboratory/testing methods (for stability, potency, and product formulation).
  • Packaged in the USA by a family owned and operated company since 1968

What's to like about the Now Sports Carbo Gain

  • Inexpensive
  • Pure maltodextrin
  • Suitable for vegetarians and vegans

What's not to like about the Now Sports Carbo Gain

  • Only one flavor option
  • Difficult to mix

PROS

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    No artificial sweeteners
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    100% complex carbohydrates

CONS

  • No included scoop

Best Mass Gainer for Skinny Guys - FINAL VERDICT

Because everybody’s body is different, it’s difficult to declare one of these mass gainers as better over all the rest. That being said, the most versatile formula to appear on this list is Optimum Nutrition’s Serious Mass.

Serious Mass promises 1,250 calories per serving when mixed with water, but skinny guys who aren’t lactose intolerant can mix it with milk for even greater gains. If you don’t want to spend the $50 Optimum Nutrition Serious Mass generally goes for, we recommend trying NOW Sports Carbo Gain, which can be purchased for half the price of its Optimum Nutrition counterpart and utilizes pure maltodextrin for speedy gains and fuller absorption.

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