Top 10 Mass Gainers For Skinny Guys – 2019 Buying Guide (Weight Gainers, Meal Replacements)

Last Updated August 25, 2019

You eat and you eat but not a single pound is gained...

Sounds familiar?

Being skinny has it's advantages but fast metabolism is certainly a downside when you're trying to gain muscle.

Now mass gainers aren't going to magically solve all your problems but it will certainly help get the calories, protein and carbs that you need on a daily basis.

When I first started training 10 years ago, most mass gainers were not only filled with sugar but fillers and crap that just made people gain slabs of fat (nope not muscle).

It's no different these days.

top 10 mass gainers

With amino spiking becoming a "thing" and mass gainers still trying to sneak in fillers and useless ingredients, you've got to tread carefully as the next mass gainer you buy may make you wonder why you threw away money to get fat.

The goal has never changed here, you're looking to gain muscle while minimizing fat gain. ​

You can maximize your gains by using a pre workout made for gains, so check out our pre workout guide.

So we'll start with the best meal replacement supplements (they are basically weight gainers) then on to the best mass gainers...

Best Meal Replacement Supplements

Meal replacements are a great way to pack on mass as they are jam packed with protein, calories and carbs.

The downside is that meal replacements are a bit more expensive than mass gainers as they contain all the nutrients you need to complete a meal. 

However if you just need a mass gainer and are on a budget, skip this section.

Heck you could even use plain protein powders and add your own ingredients to make your own homemade weight gainer. 

Look at these as complete mass gainers as they contain everything that will benefit your training, from vitamins to complex carbs and more. 

In order to gain weight, you need whole foods.

So this is where you start if you're willing to pay a bit extra then you have yourself the perfect weight gainers ahead...


  • 195 Calories
  • ​21g Protein
  • ​8g Carbs
  • ​6g Fat

Marc Lobliner is known for great supplements and this MRP is no different.

It contains a great ratio of protein, carbs and fats so you get everything you need with little chance of fat gain, and more chance for muscle gains.

This MRP is a great choice for mass gaining as it uses a very clean profile of protein and nutrients, it even has veggies for overall health.

The downside there's not many flavors to choose from (only about 3) but otherwise, it's a great MRP.


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    Balanced profile with great macros
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    No bloating or gas issues
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    Lots of veggies
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    Reputable brand


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    Only 3 flavors to choose from


  • 235 Calories
  • ​25g Protein
  • ​25g Carbs
  • ​8.5g MCT Powder
  • ​5g Fat

NutraBio has all kinds of supplements and they've been around for good long time.

They have here one of the best profiles we've seen in a MRP as it uses high quality sources of carbs and protein.

Muscle Matrix MRP is the only one we've seen using highly branched cyclic dextrin as a carb source.

It is a bit pricey but it provides a quick and convenient way to get all the macros and nutrients you need in one easy to mix and tasty shake.


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    Clean sources of nutrients
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    Uses HBCD (highly branched cyclic dextrin) as carb source
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    Fully disclose profile with no prop blends whatsoever
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    Easy to mix


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  • 290 Calories
  • ​35g Protein
  • ​21g Carbs

Labrada is known to make great tasting and high quality protein powders but it comes with a price.

While this contains everything you need in one shake, it is just a bit more pricey than most MRPs.

It does quite a good job at satisfying the appetite and if you prefer a thick consistency, then you'll especially like this MRP powder.

The macros are great and it contains great sources of fats and proteins.


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    High quality and great brand for protein
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    Satisfies appetite quite well
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    Makes for a thick shake (if you prefer that consistency)


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  • 20g Carbs
  • ​100 Calories

Containing only high quality carbs, Real Food is a carb supplement that only has low-glycemic carbs (pounded yam, sweet potatoes, oats and blueberries).

Being a company that only focuses on what his "5%" fans want, he pushes out formula's that are not only true to the label but only contain stuff that works.

He may have a pre workout called Kill It, and a creatine supplement containing 10 different creatines along with a recovery supplement ALLDAYYOUMAY, you'll find Real Food to only contain nutrients from real food.

Now the ingredients in Real Food are all made from real food sources.

It starts with 10 grams of sweet potatoes, which is a great source of carbs as it's unlikely to store itself as fat.

Next is pounded yam, a source that's packed of antioxidants that have a great dose of vitamin C and B's.

And then we have 7 grams of oats, a great source of fiber, minerals and also lowers cholestrola and promotes cardiovascular health.

Finally the last ingredient is blueberry fruit powder which is included to make the flavor of Real Food sweeter, but it's also packed with vitamin C and antioxidants.

Now this is best carb supplement you can get out there.

It doesn't contain any cheap carbs like maltodextrin or anything that'll store itself as fat.

It can also easily be combined with any protein supplement, effectively making you a mass gainer and potentially a meal replacement.

Get Real Food if you want a meal replacement supplement that's worth trying.


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    Fantastic taste
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    Balanced profile
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    Assists in achieving macro goals
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    Increases energy
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    Helps put on weight


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    Oats drop to the bottom


  • ​​525 calories
  • ​​75g carbs
  • 47g protein
  • ​5g sugars

From Total War to Aftermath, RedCon1 has been making some hardcore supplements and have not shown any signs of weaknesses.

MRE, a unique and well formulated meal replacement, is looking fantastic as it's made from whole foods.

With 47g protein, 75g carbs and only 4g fat, there's much more to MRE than meets the eye.

It contains no whey whatsoever.

MRE only contains protein from sources like salmon, beef, chicken and eggs.

But don't worry, since there are no fats from the fish here, there's absolutely no hint of it in the flavoring.

The carbs are mainly sourced from dehydrated yam and sweet potato, as well as oats.

This military style meal replacement is perfect for the bodybuilder looking to get all the nutrients they need to take their training to the next level.

Take their Total War (read the review here) and you've set yourself up for total muscle destruction and growth!


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    Contains whole food sources
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    Builds muscle
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    Tastes great
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    Increases recovery and energy


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    Uses dextrose

Top 10 Mass Gainers For Muscle Gains (and Not Fat)


  • ​​600 calories
  • ​​86g carbs
  • 53g protein

Isopure Mass brings simplicity and high quality ingredients into every scoop of this gainer.

It has everything a gainer should have, from BCAA's to complex carbs, vitamins and minerals.

Isopure Mass only contains the purest protein source in here, which is protein isolate.

That isn't the best thing, as you'd only be getting one source of protein from this.

Ideally you want to get a mix of sources to ensure your muscles are constantly in a fed state.

If you're lactose intolerant, you'll love this as it's lactose free.


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    Lactose free
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    Great tasting
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    Loaded with calories, carbs and protein


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    Uses mostly maltodextrin for carbs


  • ​656 calories
  • ​84g carbs
  • ​60g protein

Animal Mass is another no B.S. type of supplement.

The company is well trusted and is part of the Universal Nutrition family.

Every scoop in here is packed with high quality carbs, protein and calories.

It's actually one of the "cleanest" gainers we've seen to date.

For the protein blend, it consists of whey protein concentrate, whey protein isolate, hydrolyzed whey, micellar casein and a couple of other high quality sources.

The carb blend is complex, which also high quality nutrients like maltodextrin, inulin waxy maize and oat fiber. 

(you can read the in-depth review here)

To top it off, it has a digestive blend to help digest all of the ingredients in here.


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    Uses a mix of slow and fast carbs / protein
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    Covers all nutrients required
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    Easy on the stomach, no digestion issues
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    Tastes good


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  • ​810 calories
  • ​82g carbs
  • ​62g of protein

Up Your Mass is the kind of gainer that has set the standard for it's category.

They've been around for nearly 2 decades now so you'd guess they know what they are doing.

Every scoop is packed with more than 800, 82 grams of carbs and 62 grams of protein.

The carbs are made out of oat fiber, barley and maltodextrin, and the protein sources range from soy whey isolate, whey concentrate and calcium caseinate.

You also have healthy fats in here like MCT's and omega 3's.

The only thing is that they've upgraded their formula, but go for the old formula as it's got more protein and seems to be more liked over the new one.


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    Great blend of ingredients
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    Great mixability
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    High quality
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    Tastes great
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    6 protein sources
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    Discloses protein dosages (in new formula)


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    Updated version tastes bad (stick to the old formula as seen in the picture above)
    Mixature is a bit thick


  • ​510 calories
  • ​​87g carbs
  • ​52g of protein

If you want something that works then you can't go wrong with Universal Nutrition.

They are straight to the point with their supplements, and Real Gains is no different here.

Every serving has 52 grams of protein, 87 grams of carbohydrates and tops it off with extras like healthy fats and fiber.

With that much behind every serving, you'd expect the calories to be higher but it's at a clean 510.

The protein blend consists of whey concentrate, micellar casein and whey protein isolate.

All of these are high quality sources and range from long digesting to fast so you know your muscles are being constantly fed.

The healthy fats range from MCT's, flax seed oil and much more.

This has everything you'd need to get through a bulking season while maximizing muscle gains.

This stands out than most gainers because it's more affordable and the company has been around for decade.

So if you're looking for something tasty, or just want a weight gainer, this will do it for you.


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    Easy to consume
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    Great value
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    Simple protein blend
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    Reputable company


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    Sticky and clumpy
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    Uses only maltodextrin for carb source


  • ​1230 calories
  • ​​223g carbs
  • ​50g protein

True Mass is one of the most caloric dense weight gainers out there today.

Made by BSN, a superb company for supplements though their current pre workout NO Xplode sucks, this weight gainer has 1200 calories with tons of complex carbs, a nicely put together protein blend, and lots of other nutrients that your bulking phase will only benefit from.

Being the company that creates one of the most popular protein powders out there (like Syntha 6), you'd know that they would only get better with a mass gainer.

Every serving has 16 grams of healthy fats (like MCT's etc), so you could easily cut the serving size in half and still get an optimal amount of macros here.

The protein blend is mixed with whey concentrate, calcium caseinate, milk isolate, egg albumin and hydrolyzed whey.

So whether you've never had a weight gainer before or you just need the extra calories (and carbs / fats / protein) then you'll definitely pack on mass with this.


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    Tastes great
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    Makes it easy to gain weight (loaded with carbs)


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    May cause bloating


  • ​1300 calories
  • ​​252g carbs
  • ​52g protein

Dymatize's protein is like the IKEA of furniture, you can't really go wrong with it and you'll find them to be affordable.

The protein blend is quite premium, despite what you may judge from the supplement design (it doesn't really look appealing right?), but it starts its' protein blend with whey concentrate and whey isolate and ends with hydrolysate.

These sources of protein range from fast to medium to slow (with egg albumin and micellar casein) digesting so you'll be set drinking this before or after your workout.

It also has a digestive blend, all the vitamins and tops it off with creatine monohydrate (a must have for hardgainers).

Dymatize is also known for great tasting protein, this gainer is no different.

The price is also fair.

You could use full fat milk and use less of a serving and still get optimal amounts of macros and nutrients...


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    Great taste
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    Increases recovery
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    Mix of carb sources (slow and fast digesting)
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    Uses mostly protein isolate


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    Bit hard to mix


  • ​1250 calories
  • ​​25​3g carbs
  • ​50g protein

You can get also get this in the UK by clicking here.

Now this and BSN's True Mass 1200 are at a really close tie.

Optimum Nutrition's Serious Mass Gainer has been the top selling mass gainer of Amazon for some time but that doesn't mean it's the best.

You'll always find this gainer on many top lists and reviews like Gym Talk and many others.

We'll also have to do a serious in-depth review on this but here's the scoop and what each serving contains...

Every serving has 50 grams of various protein sources, 250 grams of carbs, 5 grams of fats, a full spectrum of vitamins and minerals, and even creatine and glutamine.

So you're not only getting a meal replacement here (if you don't mind drinking shakes as your meals) but also creatine and glutamine for optimal recovery and muscle growth.

Some people have claimed to gain up to 15 pounds on this, but we really doubt half of it would be muscle gains as the creatine and sodium in here can really add on water weight (which isn't a bad thing during bulking season).

If you want to avoid the bloating issues then you'll want to cut back to half a scoop while taking this but that would be the only reason why this isn't high up on the list.

Otherwise, this is perfect for you hardgainers and ectomorphs who are looking to gain mass.

Just combine it with a program like this one...


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    Mostly great flavors
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    Half a serving has 600 calories
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    Low fat (4g)


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    Difficult to mix without blender
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    Large scoops


  • ​660 calories
  • ​​101g carbs
  • ​53g protein

Nutrabio has been making supplements since most of you were born.

Or at least that's how long they seem to have been around.

They disclose every label, and even lists the amount of fillers and "other" ingredients.

They've got a mass gainer and it looks solid.

Every 53 gram scoop has a blend of fast and slow digesting protein to ensure your muscles are fed all day long.

The protein blend consists of whey protein isolate and miscellar casein, both high quality and premium sources of protein.

Like most weight gainers though, it isn't the most wallet-friendly.

Every serving costs around $2.85 (with a coupon: FITFREK5) which is more than fair since it can be used as a meal replacement.

Overall though, this is a great mass gainer from a great and trustworthy company.

If you prefer buying it from Amazon, click here


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    High quality ingredients
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    No stomach issues
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    Good taste


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    Expensive (you get what you pay for)


  • ​650 calories
  • ​​85g carbhydrates
  • ​60g protein

This right here is every skinny guys dream gainer.

It's not only packed with calories but it's got the right macro's and ingredients and it does so while keeping fat at an extremely low amount with only 8 grams.

The amount of cholesterol in this gainer is lower than average, which is at 60mg per serving.

Sodium is a bit high with this as it's at 340mg, you'd want to keep sodium under 300mg but that's why this gainer tastes so good.

Being the company that literally brought the gold standard of protein to life, you'd definitely expect this to be high up on any top 10 list.

The protein blend here consists of whey protein isolate, whey concentrate, calcium caseinate, egg albumin, whey peptides and glutamine peptides.

The protein blend here consists of whey protein isolate, whey concentrate, calcium caseinate, egg albumin, whey peptides and glutamine peptides.

Every serving has 85 grams of complex carbs, which will help you sustain energy all day long and it'll help keep your muscles glycogen stores nice and full.

This blend also includes MCT (medium chain triglycerides), which is a super healthy fat that is easily digestible.

If you're looking for something affordable while making lean gains (or at least as lean as possible) then you'll enjoy Pro Gainer.


  • ​750 calories
  • ​​109g carbs
  • ​53g protein

It's easy to find a dirty weight gainer that uses cheap ingredients and fillers but this here is a gem.

TL's mass gainer is packed with "clean" calories, meaning everything you get in every massive scoop will be benefited by you and your gains.

Grass-Fed Whey Protein

Every scoop of this mass gainer is loaded with 53 grams of 100% Grass-Fed New Zealand Whey Protein Concentrate.

It uses WPC-80 which is the higher quality form of protein.

750 'Clean' Calories

ProteinSeries Mass Gainer also packs a whopping 750 calories, most of which are "clean" so you can maximize your muscle gains while minimizing fat.

You're probably familiar with the complex carb maltodextrin, a common carb which is used in most gainers, well this one has the non-GMO form of it.

100% Disclosed Ingredients

It's derived from 100% pure tapioca starch, a certified kosher and hypoallergenic form of maltodextrin so you know you're getting a clean form of carbs here.

The biggest difference between this and the rest of the gainers out there is that this discloses it's dosages.

So you know how much of everything you're getting, and yes that includes flavoring and fillers.

As far as natural gainers go, from protein to carbs to the rest of the ingredients, this takes the cake and is easily one of the best out there.

Use this with their powerful pre workout, PreSeries Bulk (read the review here) and you've got yourself an epic bulking season.

Use our 10% off coupon: FITFREK


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    Naturally sweetened (no ace-K)
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    Fully disclosed label, including "other" ingredients)
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    Organic carbs (non-GMO)


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    Average tasting (naturally sweetened)

​The Guide To Mass Gainers

​Train hard, eat smart.

If you are depending on supplements for gains, then you are doing it all wrong.

Nutrition is more than half the battle.

If you are eating junk food, I don’t care how hard you train or how perfect your workouts are, you will not make as much progress as you should be.

You just won’t get anywhere.

Apply the same mindset to mass gainers.

They are convenient and a luxury to have.

But they are not needed or required.

If you are an ectomorph who has a super hard time putting on weight, check your diet.

Once you know your diet is good, then maybe you can supplement and use these powders as they are super convenient and easy to take.

So if you didn’t read all of the above…

It’s vital to just understand that training and nutrition (from real food) is the key to constant gains.

And even if your diet is perfect, mass gainers should not be the sole source of nutrition and macros.

​What Are Mass Gainers?

Protein powders are often not enough for those looking for a more all-in-one complete solution.

Mass gainers are that solution and they provide everything from protein, carbs, fats and fiber.

They can be used as meal replacements but should never be used for every single meal.

Anyone from athletes, bodybuilders to regular people who are too busy to prepare meals ahead of time can use mass gainers.

​What’s The Difference Between Mass Gainers and Weight Gainers?

​You may see weight gainers and mass gainers being used for these types of supplements but there is a little difference between the two.

Mass gainers contain a little less fats and carbs but generally more protein.

They also have anywhere between 100 to 300 calories.

Weight gainers are much more dense in calories, carbs, fats and vitamins.

They range from 300 to 600 calories.

You could easily use a regular protein powder, add a bunch of ingredients (like peanut butter, nuts, berries, etc.) and call it a weight gainer.

​The Labels Tell It All

​Use them as directed on the label (yes you need to read the label).

Generally mass gainers are great to use post workout as they contain simple carbs that shoot up your blood sugar but if they have complex carbs like oats then it can be used before your workouts.

Once you understand what to avoid from mass gainers and what to look for, you’ll easily be able to distinguish a good gainer from a bad one.

​Weight Loss Or Muscle Gains

​While it may sound strange, but weight gainers can be used for virtually any goal.

Whether it’s weight loss, weight gain or weight maintenance.

Weight gainers might be packed with calories of protein carbs and fats, you still need to eat more than you burn in order to gain weight.

So your BMR (basel metabolic rate) needs to be considered, as well as how much (and how hard) exercise you’ve done.

​Mass Gainers As Meal Replacement Powders

​Mass gainers are like whole meals, you can get everything in one sitting.

So the benefits are similar to what you would get from food.

But mass gainers have a slight advantage as they are more convenient, don’t need much preparation, can be consumed anywhere, anytime and are easily tracked as the label displays how much of each macro you’re getting.

You can think of it as nutrition in a scoop, but again it can never replace whole food and hard training.

And these benefits are in general as some mass gainers can pack “empty” calories.

Alcohol for example contains empty calories without any nutritional value.

Like fast food and processed foods may have poor nutritional value thanks to the preservatives, sodium, etc, but they still contain protein, carbs and fats.

Think of mass gainers as food.

You’d want to get something as natural as possible.

​What Makes It Different Than Protein Powders?

Mass gainers tend to pack everything and are ready to consume.

Protein powders just contain protein but they can be mixed with other ingredients.

So this brings us to the question of…

​Should You Take A Mass Gainer Or Make Your Own?

​​Answer this first….

Do you have the money to spend?

Would you rather spend the time to prepare your own or would you prefer it to be ready?

Mass gainers pack everything you need into a scoop.

Making your own would take a little bit of time preparing, storing and cleaning but it is worth it as you would know what you put in it and you would be consuming fresher foods and fruits.

Sometimes weight gainers (aka mass gainers in this case) can contain simple carbs instead of complex, which is likely to have you store more fat than usual.

You need to pick the best quality for your buck if you want to get the most out of mass gainers.

Otherwise, here are a few recipes you can try…

For these (well most homemade mass gainers recipes need these ingredients) recipes, you’ll need:

  • Milk (whole is best)
  • Protein powder
  • Fruits (anything like bananas, berries, apples)
  • Nuts and/or peanut butter(optional)
  • Oatmeal (optional)
  • Creatine and/or glutamine (optional)

​For example you could do this combination for a shake:

  • One cup of milk
  • Handful of almonds
  • A spoon or two of peanut butter
  • 1-2 banana's
  • 3-5g Creatine

​For example you could do this combination for a shake:

Looks simple right?

The biggest advantage here is that it contains real food and macros, and a whole lot of calories (at least 300+, depending how much of each ingredient you use)

For even more protein, you could add Greek Yoghurt.

​What Are The Disadvantages Of Mass Gainers?

​With all the good of mass gainers (and weight gainers alike) there has to be some disadvantages right?

Now while gainers have great ratios of macros (protein carbs and fats), most gainers have poor sources of all the macros.

These sources range from simple carbs to bad fats and limited protei​n types.

And usually gainers will fill you up like never before, no matter what kind of milk you use.

It’s also not the most cost effective way to gain weight.

Some gainers will use simple carbs (like sugar) to drive up the calories (this is just mostly empty calories).

You may sometimes feel bloated and have headaches from these powders.

It all boils down to what kind of a gainer you use as they are not all created equally.

Are There Side Effects From Mass Gainers?

We wouldn't call them side effects but there certainly is some negatives felt from these calorie dense gainers.

Like we mentioned above, you may feel a bit of a headache, maybe a bit bloated and among other things.

But really, you’re consuming 600 calories in one shake, you’re bound to feel a bit bloated (it really does depend on the gainer though).

​How To Take Mass Gainers And When

​The ideal mass gainer should contain more complex carbs than simple carbs.

So if it did, then it would be perfect if it was consumed a few hours before a​ workout.

Some people prefer to use them after a workout as they feel too bloated taking it beforehand.

You generally want to read the label. Sometimes it’ll say it can be used before a workout.

The label does tell it all though.

​What To Avoid From A Mass Gainer

Mass gainers are not all created equally.

The ones in this top 10 list are recommended and have good quality ingredients in them.

These are the ingredients you want to avoid in a mass gainer:

  • Dextrin / Maltodextrin (simple sugar, best taken after a workout with creatine)
  • Artificial flavoring (depends on your preference)
  • Thickeners and gum
  • Anything you’re allergic to

​Also a side note, avoid GNC’s mass gainers, they are way overpriced.

​How To Mix And Shake

​Now you can throw a scoop of any gainer into a big cup of milk and mix it with a spoon.

But most people prefer to shake or blend it as it tends to become much more smooth.

The choice comes up to you…

You can use a blender bottle though as they are bigger and can contain much more liquid.

Any of these shakers would be prefect to use.

Now for blenders, you can look at any of th​​​​ese.

​Final Words

​As we’ve proven already, you can easily make your own mass gainer shake with protein powder and whole foods and it will be just as calorie densed as a regular mass gainer.

Mass gainers still have their place though as they are super convenient to have.

They can be used anywhere, anytime.

If you have the money then go ahead and try out these gainers.

Otherwise, you’ll do just as fine with homemade shakes with or without the protein powders.

2 thoughts on “Top 10 Mass Gainers For Skinny Guys – 2019 Buying Guide (Weight Gainers, Meal Replacements)”

  1. Hi I am Mahesh I have a very slim body my family members , relatives , friends all insulting me some times about my body I want to growth my body can any one help me

    • Hi Mahesh

      You can do it, are you training? You can gain muscle and put on weight but you shouldn’t let the insults get to you, nor should you rush the process because this is a journey, not a 90-day program.

      Your mind should be strong, and so should your vision and goals.

      These mass gainers are not going to give you gains, they are just supplements, and they are only going to help. You’ll make most of your gains from real food and hard training.

      Join our Facebook group so we can find out more about you and try to help out.

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