MRM Massive Muscle Gainer Review

While weight loss is a goal for many individuals, some want to gain weight without gaining fat, often to improve their athletic performance or to feel and look more muscular.

But whatever your reason is, the most important part of gaining weight is to consume more calories than what you burn on an everyday basis. It should be simple, you must eat extra calories each meal to pack on solid mass and bulk up.

Yet, it’s difficult to do without feeling stuffed, sluggish, gassy, and sometimes bloated. So, if you struggle to eat foods to gain a healthy weight, taking a mass gaining supplement may help you.

Mass gainers, unlike regular protein supplements, are rich in protein, carbs, and other ingredients, such as amino acids. And a muscle gainer that sits atop of our list is the MRM Massive Muscle Gainer.

If you’re interested to know more about the MRM Massive Muscle Gainer, keep on reading. We provide you this in-depth guide about the product to help you find out whether it can align with your current fitness goal.

TLDR: Review of the MRM Massive Muscle Gainer

Product Description

The MRM Massive Muscle Gainer chocolate flavor is supported by science and inspired by nature. MRM’s brand in introducing this product to the market is to provide consumers with high-quality ingredients that mainly enhance the biochemistry in the digestive tract.

As such, the MRM Massive Muscle Gainer contains 5 strains of probiotics, whose function is to improve the biochemistry in the digestive tract, which eventually leads to a better immune system and that the body can get the most benefit and nutrients from the food you eat.

Per serving (2 scoops), you’ll get 25grams of protein, which is the most important macronutrient to help you maintain a healthy weight and increase lean and muscle. 

Gaining lean muscle mass means more work if the gastrointestinal tract is unhealthy. This is because the small intestine, stomach, and colon work together to digest the foods and absorb nutrients. MRM recognizes this, the reason why they designed the Massive Muscle Gainer to improve the balance in the digestive tract.

Worth mentioning also that the MRM has added probiotics and enzymes to support gut health and aid in digestion. To make sure that the 5 strains of probiotics can survive in the stomach’s harsh environment, they are microencapsulated so they are released in the intestines where they can thrive and colonize.

The MRM weight gainer further contains good calories from a good carbohydrate complex, comprising maltodextrin, VitaFiber(Isomalto-oligosaccharide), and trehalose. They all work together to provide your body with calories that are less prone to body fat increase and do not create blood sugar spikes.


  • With essential amino acids
  • Contains 5 strains of  microencapsulated probiotics
  • 25 grams of complete protein per serving
  • Combination of slow and fast-digesting carbs and fiber
  • Precisely-chosen fats for their ability to offer benefits to cell membrane and heart
  • Helps in building muscle
  • Helps burn body fat
  • No sweeteners
  • No artificial flavors
  • Hormone and BSE-free


  • Very few users experience bloating

Is it worth it?

The MRM weight gainer is worth buying if your goal is to gain muscle. Since eating a lot of healthy foods to build serious mass is hard work, expensive, and time-consuming, taking this weight gainer can be a great help.

It contains low-temperature processed whey protein concentrate as well as isolate to provide both slow and fast digestive proteins. Consequently, it will help you to increase lean muscle mass while maintaining a healthy weight.

Interested? Here’s the link to purchase!

In-Depth Review of the MRM Massive Muscle Gainer

Supplement Facts

18 servings per container

Per serving size (2 scoop/ 84g) of MRM weight gainer, it contains the following:

Calories 350 

Total Fat 6g, 7% Daily Value

Saturated Fat, 1.5g

Polyunsaturated Fat 0.5g

Monounsaturated Fat 3.5g

Trans Fat 0g

Cholesterol 50mg, 16% DV

Sodium 135mg, 6%

Total Carbohydrate 49g, 18%

Dietary Fiber 11g, 39%

Total Sugars 7g

Includes 5g Added Sugars, 10% DV

Protein 25g,

Vitamin D 0 mcg,

Niacin 9.3mg,58%

Calcium 193mg, 15%

Iron 3mg, 17%

Potassium 294mg, 6%

Protein Blend 10mg (1 Billion Cells)

Typical Amino Acids Profile

Per 84g – 2 scoops

Alanine 1180mg

Arginine 590mg

Aspartic Acid 2810mg

Cysteine 320mg

Glutamic Acid 4410mg

Glycine 590mg

Histidine 370mg

Isoleucine 1630mg

Leucine 2400mg

Lysine 2270mg

Methionine 490mg

Phenylalanine 780mg

Proline 1570mg

Serine 1340mg

Threonine 1530mg

Tryptophan 560mg

Tyrosine 350mg

Valine 1530mg

Some ingredients found in the MRM include Natural Protein Optimizer (ultrafiltered whey protein concentrate,  Instantized Calcium Caseinate), Instantized Calcium Caseinate, Cocoa, Trehalose, Natural Chocolate Flavors, and Opti-Fat.

Who is it Best for?

The MRM Massive Muscle Gainer is best for people who want to increase their muscle mass and those who are into intense physical training as they need to consume more food to get additional nutrients. 

What Do People Say About It?


An Amazon customer said it can help fuel your workouts and a good gainer for its price.

He said, “I’ve always struggled gaining weight, I’m 5’0 and have always been under 100 lbs and have been so annoyed with all the “skinny” comments. I work out regularly so I did want to add some muscle as well.”

Another said, “Finally, a chocolate protein powder that doesn’t make me feel nauseous!”

One Amazon customer has also been taking the MRM weight gainer as he’d gotten sick and he lost so much weight. 

This is just what I need to help me gain an extra 40 pounds… When I gain my desired weight. I just stopped drink[ing] it. I highly recommend this product. It doesn’t have all the other harmful supplements in it like other gainer products,” he reviewed.

Final Verdict: Should You Buy it?

If you’re looking for a muscle gainer that can help fuel your workouts, then MRM is worth the try. However, we want you to remember that muscle gains do not just happen overnight. 

There is no need to force yourself to consume tons of protein or that you must eat extra calories every meal to gain muscle quickly. But what this MRM product can attest to is that they can keep your sugar relatively low plus it is high in calories.

Massive Muscle Gainer also makes it easy to add calories (from food) to your diet since it contains 5 strains of probiotics to enhance the biochemistry in your digestive tract.

It is a special combination of low-temperature processed whey protein isolate and concentrates together with micellar casein to provide both slow and fast digesting proteins.

What a delicious way to build some serious mass with MRM!

If you like this article, you might want to read our other reviews at

Nathan Lloyd, MSc

I’m a personal trainer, based in Boulder, Colorado.
I service clients physically in the Boulder area, mainly in the ONE Boulder Fitness Gym, but am also available for online consulting and coaching.

If you’re interested in my personal coaching programs, please contact me via the contact page.

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