Please Note: We are compensated if you buy anything through the links in this article. For more info, read our disclosure page.


Top 10 Weight Gainers – Best Mass Builders of 2020 Ranked

Choosing the Best Mass Gainer

For most people gaining significant amounts of muscle and strength means having to consume a considerable amount of food on a daily basis, and anyone who has tried this and knows how difficult it can be to stay consistent in the long term.

That is why a buying the best mass gainer is a great idea and a fantastic option for anyone who is operating on a tight budget or simply struggles to consume large volumes of food on a consistent basis.

What to Look for in a Good Weight Gainer

Lack of hunger is one of the most common set backs when trying eating massive amounts of food. Not to mention the amount of money one spends on a high calorie diet. Yikes!

There are two options for people looking for a solid weight gainer shake:

  1. Make one yourself using whey protein and other ingredients in a blender
  2. Buy a weight gainer supplement from the list below

We have picked the top 10 best weight gainers for men and women based on the following metrics.

What goes into being the best weight gain product

  • Amount of calories, protein, carbs, fats and sugars per serving
  • Calorie/dollar spent
  • Quality and reputation of manufacturer along with user feedback for that company
  • Price and value for the money
  • Ingredient list, where are all these nutrients coming from?
  • Flavor and taste
  • User reviews and feedback on online supplement suppliers

Any product on this list will ensure that you can pound down thousands of calories every day comfortably and without breaking the bank.

Weight Gainers Compared

If you buy anything using the links below, we get a commission.

#1 – Optimum Nutrition Pro Gainer


Although Serious Mess has been knocked from the top spot of this year’s men’s and massive gain supplement list, Optimum Nutrition have once again shown itself to be the leading supplement brand.


  • Contains a 60g of protein per serving
  • Provides 85g of high quality carbohydrates per serving
  • Packed with a range of vitamins and minerals to promote health and well-being
  • Includes Medium Chained Triglycerides as a healthy fat source
  • Contains digestive enzymes to facilitate nutrient absorption
  • Available in five mind-blowing flavors



Bottom Line

Not all of us can be ectomorphs. If you’re a mesomorph or endomorph and want to bulk up without adding fat, then Optimum Nutrition’s Pro Complex Gainer might be just what you’re looking for. It has fewer calories and a higher protein-to-carb ratio than many other supplements. It also contains egg, whey, and casein proteins, and having a blend of different protein types can help support effective weight gain.

Affordable and downright delicious, it really isn’t surprising that Pro Gainer by Optimum Nutrition has been voted as the best mass building supplement for men in our top 10 list for 2021.

 $39.42  Check Current Price

#2 – Universal Nutrition Real Gains


Retaining its position as the second best weight gainer supplement this year, Real Gains by Universal Nutrition offers a great balance of high quality ingredients, awesome taste, and excellent value for money.


  • Provides 52g of high-quality protein per serving
  • Includes a selection of healthy fats including Medium Chained Triglycerides and Flaxseed Oil
  • Contains three different protein sources with varying rates of digestion
  • Low in sugar
  • Available in six scintillating flavours



Bottom Line

Designed for the active athlete and the average fitness enthusiast, Real Gains is low in sugar, fiber-rich, and nutrient-dense. It mixes very well without a blender, making it convenient and easy to take on the go. It has 52 grams of protein in a serving.

Universal Nutrition manufactures some of the best supplements in the world, so it should come as no surprise to you that their weight gainer supplement is standing tall amidst to the competition.

 $51.54  Check Current Price

#3 – Dymatize Super Mass Gainer


Delicious, cost-effective, and, well, effective; Super Mess Gainer by Dymatize truly lives up to its name by providing a whopping 1280 calories per serving, including 52 g of protein and just over 250 g of carbohydrates.


  • Provides a solid 52g of protein per serving
  • Includes additional Creatine and Glutamine for enhanced recovery
  • Also includes BCAA to stimulate muscle protein synthesis
  • Available in four mouth-watering flavours
  • Packed full of essential vitamins and minerals



Bottom Line

Dymatize’s Super Mass Gainer provides nutrients needed for major growth. It contains a digestive formula that allows for intake of large amounts of protein and crabs without causing digestive issues. A serving with whole milk packs 1,900 calories and 82 grams of protein, making it a protein-rich post-workout or maintenance drink.

This men’s weight gainer supplement has been formulated with a blend of different protein and carbohydrate sources to ensure rapid absorption and a sustained release of nutrients into your bloodstream for hours thereafter.

 $48.29  Check Current Price

#4 – Optimum Nutrition Serious Mass


Optimum Nutrition Gold Standard way protein powder is well known around the world for being one of the best tasting protein powders on the market, so you can expect great things in the flavour department from Serious Mass.


  • Each serving includes 50g of protein and more than 250g of carbohydrates
  • Low in fat
  • Include added Creatine and Glutamine for enhanced recovery
  • Available in five delicious flavours
  • Includes a wide variety of vitamins and minerals to promote overall health


serious mass nutritional label

Bottom Line

Designed for the active athlete and the average fitness enthusiast, Real Gains is low in sugar, fiber-rich, and nutrient-dense. It mixes very well without a blender, making it convenient and easy to take on the go. It has 52 grams of protein in a serving.

Serious Mass by Optimum Nutrition was ranked as the best men’s weight gainer supplement in 2014; it has been overtaken by a few superior competitors this year, mostly due to its price, but is nonetheless one of the tastiest and highest-quality products in its field.

 $45.58  Check Current Price

#5 – BSN True Mass 1200


Insulin is one of the most anabolic hormones in the human body, and with a whopping 222 g of carbohydrate per serving, True Mass 1200 by BSN is sure to set your muscle building machinery into motion like nothing else.


  • Contains more than 1200 calories per serving
  • Provides 50g of protein and over 200g of carbohydrates per serving
  • Includes a range of protein sources for varying rates of digestion
  • Available in three fantastic flavours
  • Includes Medium Chained Triglycerides as a healthy fat source



Bottom Line

BSN True-Mass is loaded with the building blocks to protein synthesis, making it ideal for athletes who want sustained muscle growth. A special blend of carbohydrates supports fueling as well as recovery. BSN has special flavor technology, which makes this blend especially tasty.

BSN is one of the most highly reputed supplement manufacturers on the market you can rest assured that this is one of the very best men’s mass gainer supplements you’re likely to find.

 $46.18  Check Current Price

#6 – Nature’s Best Isopure Mass


If you’re in the market for a more easily digestive weight gainer supplement the new might want to consider checking out Isopure Mess by Natures Best because it includes essentially no lactose whilst still packing a considerable caloric punch.


  • Provides 53g of protein and 86g of carbohydrates per serving
  • Additional vitamins and minerals are included
  • Provides 4g of dietary fibre per serving
  • Available in two tasty flavours
  • Low-fat and lactose-free


Nature’s Best Isopure Mass nutrition label

Bottom Line

This weight gainer supplement might not contain as many calories as some call products on the market but absorption of nutrients is the name of the game if you’re looking for long-term strength and size gains.

 $58.24  Check Current Price

#7 – Arnold Schwarzenegger Series Iron Mass


Developments in the weight gainer range of supplements has shunted Iron Mass by Arnold Schwarzenegger Series down from third place in last year’s mass builder list, but it is still undeniably a world-class product that warrants attention.


  • Provides 40g of high-quality protein per serving
  • Includes Hydrolysed Beef Protein Isolate
  • Provides high quality carbohydrates including Sweet Potato Powder
  • Includes Creatine Monohydrate to boost cellular ATP production
  • Includes a range of digestive enzymes for enhanced nutrient absorption
  • Available in two the terrific flavours



Bottom Line

Arnold Schwarzenegger urges users to “become your legacy,” and it proprietary blend supports sustained growth of firm muscle. At 485 calories per serving, it has fewer calories than many gainers, but its blend of healthy fats adds to its mass-building potential. It comes complete with “muscle plasma protein technology” to help get the most out of your workout.

From its use of high quality carbohydrates and protein to it added creatine and BCAA content, this men’s weight gain supplement is almost definitely going to stick around in our top 10 lists for the foreseeable future.

 $188.32  Check Current Price

#8 – MHP Up Your Mass


Up Your Mass by MHP is a very intelligently formulated weight gain supplement which provides a sensible serving of protein, carbohydrates, and fat using nothing but the very highest-quality ingredients.


  • Provides 46g of protein and 58g of carbohydrates per serving
  • Includes a high quality carb sources including oats and barley
  • Chock full of health-promoting vitamins and minerals
  • Provides a range of healthy fats including CLA and flaxseed oil
  • Available in six tasty flavours



Bottom Line

MHP Up Your Mass is backed by 10 years of research and product development, and it doesn’t disappoint – its nutrient blend is designed to help even the most weight-gain challenged find a way to quickly pack on real muscle.

Rather than being packed full of unhealthy sugars and unnecessary fillers, Up Your Mass includes a balance of low-GI carbs with more than enough protein to kick start your body’s protein synthesis and keep you in an anabolic state all day long.

 $31.34  Check Current Price

#9 – CytoSport Monster Milk


Monster Milk by CytoSport is a new addition to our list of top Mass building supplements for 2015, solidly earning its number nine spot with high quality ingredients and a selection of flavours that will blow your mind.


  • Provides 50g of protein per serving
  • Includes Creatine Monohydrate to increase cell ATP production
  • Includes enzymes for easier digestive
  • Provides a wide variety of vitamins and minerals
  • Also includes Glutamine and Leucine to enhance recovery and protein synthesis
  • Available in six superb flavours



Bottom Line

This is an excellent mass gainer supplement for men that provides a selection of different protein sources to provide varying rates of digestive, keeping you feeling fuller for longer and helping to sustain your blood amino acid levels.

 $62.50  Check Current Price

10.) Vitol Russian Bear 5000


Coming in at at the #10 spot in this year’s top weight gainer rankings is Russian Bear 5000 by Vitol, which provides an obscenely high level of calories per serving to the tune of 2600 high-quality calories.


  • Provides an insane 184g of protein per serving
  • Contains Media Chained Triglycerides as a healthy fat source
  • Packed full of essential vitamins and minerals
  • Includes anabolic ingredients like Colostrum
  • Available in three fantastic flavours


Vitol Russian Bear 5000 nutritional label

Bottom Line

As the name suggests, Russian Bear will allow you to put on considerable mass in a short amount of time. The best weight gainer supplements have a large amount of protein, and Russian Bear doesn’t disappoint in that department – it delivers a whopping 184 grams of protein in a serving. It’s also particularly high-calorie – 2,600 calories in a serving – sot it’s good for those who have trouble gaining weight.

With a weight gainer supplement like this in your arsenal you’re going to have no excuse whatsoever for not being able to pack on pounds and pounds of rock hard muscle mass.

 $50.21  Check Current Price

Weight Gain Supplements Guide

Building solid muscle mass is the key goal of anyone who is into fitness, weightlifting, sports or strength training. Gaining mass, however, is not as simple as most think. Properly dieting, exercising and juggling your hectic life can make it tricky to make sure you are taking enough calories in to gain weight. That’s where a weight gainer supplement can come in handy.

When you want to put on quality muscle, it isn’t just the amount of calories that matter. A gainer supplement with the right mixture of protein, fats, and carbohydrates will power your workout and help you gain the mass you want.

So What Is a Weight Gainer?

Well as it’s name suggests, it’s a supplement designed and manufactured to help you gain weight, preferably muscle mass. If we’re candid, a weight gainer is kind of like a beefed up protein powder.

While the main focus of a weight gain supplement is to provide you with extra calories, the best weight gainers are going to go above and beyond and also provide you with a huge dose of protein, carbs and amino acids to help you not only build muscle, but recovery from workouts.

Do I Need a Weight Gainer?

Are you skinny? Do you have trouble gaining weight or eating large amounts of food? Do you workout and eat as much as you can and still can’t manage to gain a pound? Does your doctor recommend it? Do you need extra calories? Are you just not big on eating 10lbs of chicken per day? Do you like tasty shakes? Are you a ectomorph?

If you answered yes to any of the above, then you should consider a weight gainer product. While you don’t NEED one, obviously, it’s not something that anyone inherently needs, it exists and if it exists, then why not benefit from it if you can.

What Are the Benefits of Weight Gainers?

Obviously your main goal is to gain weight, otherwise you’d probably skip over this article. So lets talk about what a mass gainer can do for you.

Weight gainers are designed to do one thing: provide you with extra calories, protein, carbs and a few other nutrients. Since the way to gain (and lose) weight is all about calorie maintenance, you’ll need a surplus of calories daily to build mass.

It’s not as simple as it seems though. We assume you don’t want to gain weight in the form of fat (who would?), so there’s a few things you need to know:

How to gain solid mass without adding to much fat

  • Calculate your maintenance calories for your height, weight and activity level (use this calculator)
  • Consume 500-1000 calories per day OVER your calculated maintenance
  • Get most of your calories from meats and complex carbs, avoid any unnecessary sugars
  • Use a weight gainer shake to aid you in this goal
  • Avoid junk foods that are high in fat and sugar
  • Lift weights
  • Track your weight carefully and make sure you aren’t gaining more than 3-4lbs a week
  • Rinse and repeat

Always speak with a medical professional or doctor before taking any supplements.

When to Take Your Weight Gainer Shake

Realistically you can take your weight gainer shake at any time of the day. There are, however, two specific time frames we would recommend. Especially if you want to gain weight quickly.

1. Before your breakfast meal (yes, you read that right, you are trying to gain weight after all)

Taking a weight gainer shake before your first meal will not only provide you with the extra calories you need for the day, it will also give you a huge energy boost. Don’t forget to actually eat your breakfast an hour or 2 after. It will be hard at first no doubt, but anything worth doing is going to be difficult to achieve.

2. After your intense workouts

This one is more obvious since your body is starved for nutrients and calories after burning them off during your workout. Take a weight gainer shake after the gym to replenish your bodies nutrients and regain the calories you lost during.

Wrapping Things Up

You don’t have to spend a fortune to be able to consume thousands of additional tasty calories on a daily basis, so this rundown of the best weight gain supplements should certainly have opened your eyes to the awesome options available to you. While number 1 on this list is our choice of the best mass gainer product, any of the 10 will do just fine! They are selected from many products that are on the market. Being in the top 10 is a great sign and not an easy feat.

Things to keep in mind

While these products are an amazing way to get extra calories, protein, carbs and other nutrients, they are NOT meant to be used as your primary source of nutrition. In other words, do not rely on these supplements as a substitute for a meal or proper nutrition.

Supplements are designed and manufactured to aid you, not to replace anything.

If you’re having trouble gaining weight, then you must first look at your diet and nutrition. If you are eating like a little pidgeon every day, then you’re obviously not going to gain weight and even the best weight gainer in the world isn’t going to help you. Diet and nutrition are vital in your weight gain goals.

You need to be consuming heavy amounts of calories, protein, carbs, fats and other nutrients, but from food first and foremost. THEN you can add in a weight gainer shake or two to get an even bigger dose. This is going to make you grow like a weed.

Important Notice: The information on is intended for entertainment purposes only and and does not constitute professional, medical or healthcare advice or diagnosis, and may not be used as such. The information on this site is not written, reviewed or endorsed by a medical professional, and is only to be used at your own risk. Make sure to follow label instructions for whichever product you purchase. does not assume liability for any actions undertaken after reading this information, and does not assume liability if one misuses products featured on this website. Always consult your doctor before using any products you see on this website. The results may vary about any product effectiveness.