Best Supplements to Gain Weight Fast Review

updated January 1, 2019

Gaining muscular bodyweight is the goal of many people who are desperate to get big. They exert themselves at the gym, pumping progressively heavier weights, in order to break their body down. Then they rely on eggs, chicken and weight gain powders to build it back bigger and stronger than it was before. Finding the right mass building supplement and combining it with heavy, hard training is the way to gain weight and muscle fast.

In this article, we zero in on the best weight gain supplements of 2019.

A Quick Look at the Top 10

Our favorite weight gain supplement is Naked Mass from Naked Nutrition, which delivers 1252 high protein calories, which are easily digestible and additive free. We also loved Optimum Nutrition Serious Mass, with 50 grams of protein, a 5:1 carb to protein ratio and a combination of whey, casein and egg protein. Rounding out the top 3 is Cyto Sports Monster Massive, which delivers 50 grams of protein, 4 grams of leucine and a great taste.

To make is easier for you to compare and contrast the best muscle builders, we have rated the top 10 on the basis of price and effectiveness and then given an overall rating out of 5. In the following section, we provide an in depth review of each product.

The Top 10 Up Close

Naked Mass Weight Gain Powder

In keeping with their stripped back mission, Naked Nutrition have put just three ingredients into Naked Mass; Maltodextrin, Whey Protein and Micellar Casein. There are absolutely no additives or fillers in this product. Instead, you get 1252 calories, 252 grams of carbs and 50 grams of protein per serve (includes 11.5 grams of BCAA’s). It’s gluten free, soy free and dairy free.

Naked Mass provides you with an easy to digest form of quality protein in the form of both fast acting whey and slow digesting casein. This provides your body with an instant surge of amino acids to re-feed your muscle cells after a workout as well as a constant source of slow release aminos for overnight muscle repair.


  • No additives
  • 1252 calories per serve
  • Easy to digest protein


  • Very large serving size
Optimum Nutrition Serious Mass Gainer

With a massive serving size of 334 grams, Serious Mass delivers a bucket load of macros to your muscle cells. Each serve will fast track 50 grams of protein, and 254 grams of carbs into your bloodstream. The main carb source is maltodextrin, a sugar with a high glycemic index that will quickly replenish glycogen stores. Serious Mass also includes one gram of protein per serve.This product has a 5:1 carb to protein ratio.

The protein blend in Serious Mass is made up of whey protein concentrate, calcium caseinate, egg albumin and sweet dairy whey. This combination of whey, casein and egg protein gives you a sustained release of protein into the bloodstream. Serious Mass includes one gram of creatine monohydrate per serving.


  • 50 grams of protein
  • 5:1 carb to protein ratio
  • Whey, casein and egg protein


  • Contains a lot of lactose
Cyto Sports Monster Massive

Cyto Sports are the people behind the hugely popular Monster Milk. Their mass gainer comes in a 6 pound container which delivers 50 grams of protein, with 4 grams of l-leucine added per serve. You get a whopping 600 calories with each serve. There are, however, just 73 grams of carbs, which gives you a 1.5:1 carb to protein ratio.

The protein mix is a combination of fast and slow digesting varieties to give you a protein release that lasts for hours. It has a great taste is very filling. Mixing easily with the aid of just a blender bottle, you won’t have any clumpiness of residue when you drink Cyto Sports Monster Massive.


  • 50 grams of protein
  • 4 grams of leucine
  • Great taste


  • Low in carbs
Optimum Nutrition Pro Gainer

Pro Complex Mass from Optimum Nutrition is a lean muscle mass gainer, in contrast to Serious Mass. The key difference is that this product is much lighter in carbs. It’s got 650 calories, just 8 grams of fat (4 saturated), and 85 grams of carbs. Complex Gainer contains a huge 60 grams of protein from seven different unique protein sources. This is a quality product that is loaded with BCAA’s and digestive enzymes.

There are 14 servings in a 5 pound bucket. You may decide, however, to break one large serving into two daily servings, one before and one after your workout. Pro Complex mixes easily with a blender bottle, shaker or just a spoon. It is packed with 24 vitamins and minerals.


  • 60 grams of protein
  • 7 protein sources
  • 24 vitamins and minerals


  • May cause bloating
BSN True Mass

BSN True Mass contains 18 servings with 630 calories. It contains 46 grams of protein, sourced from top quality hyrdrolyzed whey protein, micellar casein, calcium caseinate, and egg whites. There are 16 grams of fat, only 5 of which are saturated fats. It also contains 76 grams of carbs, only 14 of which are sugars. 5 grams of fiber are included as a buffer to time release the carbs into your system. There are also extra enzymes to help your body break down and absorb the product.

On the downside, this product does contain 110 mg of cholesterol. The counter is that most users say that this is the best tasting mass gainer they’ve come across.


  • Great tasting
  • 46 grams of protein
  • 5 protein sources


  • 110 mg of cholesterol
Mutant Mass Gainer

Mutant Mass Gainer contains a huge 1080 calories per serving - as much as roast turkey dinner! The 3:1 carbohydrate to protein ratio is just right for muscle building. You get 182 grams of clean carbs and 52 grams of protein. That protein is made up if a huge amount of branch chain amino acids (BCAA’s) at 36 grams. It also includes glutamine, which is severely deprived when you workout.

Unlike the majority of weight gainer powders on the market, Mutant Mass Gainer tastes great. It mixes very easily so can be put together with your gym blender bottle. On the downside, Mutant Mass contains 38 grams of sugar. Also, the it is challenging to drink a whole serving.


  • 1080 per serving
  • 3:1 carb to protein ratio
  • 36 grams of BCAA’s


  • 38 grams of sugar
Body Fortress Super Advanced Mass Gainer

Body Fortress Super Advanced Mass Gainer delivers 40 grams of protein per serving, along with 200 grams of carbohydrate. This provides an ideal ratio for muscle building. Their is a high concentration of fast acting branch chain amino acids (BCAA’s) with 8 grams per serving, along with 2.5 grams of Betapower betaine. Each serving provides you with in excess of 1000 calories.

Body Fortress Super Advanced Mass Gainer comes in a delicious chocolate formula. That means that it mixes in water, for a great taste. The protein comes from high quality whey sources. You should take this product post workout or between meals as an extra source of calories. It contains no aspartame of gluten.


  • 40 grams of protein
  • 200 grams of carbs
  • 2.5 grams of betaine


  • May cause digestive problems
Universal Nutrition Real Gains

Universal Nutrition Real Gains provides with 53 grams of protein and over 600 calories per serve of mass gaining nutrition. It also provides complex carbs to replace the energy used up while training. The ratio of carbs to protein is an ideal 3:1 to promote maximum mass gain. Also included in Real Gains are flaxseed oil and fiber in the form of inulin.

Universal Nutrition Real Gains is very low in sugar, yet still offers a great taste. Only the best forms of protein are used, in the form of high grade whey and micellar casein. MCT helps in hormone production, cell membrane protection and growth. This product mixes well and comes in a delicious chocolate flavor.


  • 53 grams of protein
  • 3:1 carb to protein ratio
  • Flaxseed oil and MCT


  • May leave a gritty residue
MuscleTech MassTech

MuscleTech Mass Tech provides you with 53 grams of protein, which is made up of whey protein concentrate and whey protein isolate. This combination of protein sources has been shown to increase protein synthesis by 68%. You also get a powerful boost of fast acting carbs with each serve to boost your training energy. Specific amino acids, such as glutamine and BCAA’s add to the muscle building effect.

MuscleTech Mass Tech also includes creatine monohydrate, which is a proven strength and energy enhancer. Each serving of Mass Tech is 5 scoops which provides you with 227 grams. When mixed with skim milk you get 80 grams of protein. The product mixes well and provides you with a great taste.


  • 53 grams of protein
  • BCAA’s
  • Creatine monohydrate


  • May cause bloating
Dymatize Super Mass Gainer

Dymatize Super Mass Gainer is a high calorie mass gaining supplement that provides 52 grams of protein and 251 grams of carbohydrate in every serving. Each serving provides you with a massive 1300 calories, which is the largest amount we have come across. Dymatize also contains creatine monohydrate to produce stronger, more powerful workouts. Glutamine fills your muscles with this essential amino acid. Digestive enzymes are also included to make this product more absorbable.

Dymatize Super Mass Gainer is available in four delicious flavors. It tastes great, having the thick consistency of a milkshake. The powder mixes well and can be blended with nothing more than a shaker bottle. This product is made in the USA.


  • 1300 calories
  • 52 grams of protein
  • 251 grams of protein


  • Difficult to drink an entire serving


The best supplement to gain weight on the 2019 market is Naked Mass from Naked Nutrition, providing an easily digestible pf 1252 calories that are additive free. The second best supplement to gain weight is Optimum Nutrition Serious Mass, providing you with 50 grams of protein, a 5:1 carb to protein ratio and a blend of whey, casein and egg protein.

Our third favorite supplement to gain weight and muscle is Cyto Sports Monster Massive, providing you with 50 grams of great tasting protein and 4 grams of leucine.

Naked Nutrition Naked Mass

Our #1. Recommendation


The Ultimate R Series Power Rack from Rogue.

jim roose

My name is Jim Roose. I'm a former competitive power lifter and gym owner. I've bought millions of dollars of fitness equipment over the last 20 years. This site is my way of giving back to the fitness community that's done so much for me. Every article on here is carefully researched and written by me. Leave a comment if you have any questions.