Best mass gainers for skinny guys

Best Mass Gainers For Skinny Guys

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Are you one of those who eat a lot but never gain a pound? Well, you are not alone in this journey. Most men face this problem, and if you ask me the real cause of it, then my answer would be “Its natural”. However, it’s still possible to gain muscle mass thanks to mass gainers. 

These supplements are primarily made for gaining weight and can help you achieve the body physic you have dreamt of since childhood. But what could be the best mass gainer for skinny guys? If you are searching for it, you have opened the right article. 

Below, I have mentioned the list of all the mass gainer supplements recommended by experts and their pros and cons. Moreover, I have also added a buying guide at the end to help you make an informed decision. So without wasting much time, let’s start our journey!

Best mass gainers for skinny guys
Best mass gainers for skinny guys 3

Best Mass Gainers For Skinny Guys

#1: Optimum Nutrition Mass Weight Gainer 

Ranking first on our list is the Optimum Nutrition Serious Mass Gainer. It is a popular weight-gain supplement designed to help individuals gain lean muscle mass and support their fitness goals. This supplement is ideal for individuals who struggle to gain weight or want to build muscle mass quickly.

This product is available in a 12-pound bag containing approximately 16 servings of high-calorie protein powder. Each serving provides 1,250 calories, 50 grams of protein, and 252 grams of carbohydrates, essential nutrients for muscle growth and recovery.

The Serious Mass supplement comes in various delicious flavors, including chocolate, vanilla, and strawberry, making it an enjoyable addition to your diet. It’s also easy to mix and blend with water or milk, making it a convenient post-workout drink.

One of the best things about this product is its essential vitamins and minerals, including vitamin C, iron, calcium, and zinc, necessary for overall health and well-being. It also includes creatine, a popular supplement known to enhance athletic performance.

However, it’s important to note that this product should not be used as a meal replacement but should be combined with a healthy, balanced diet and regular exercise routine. 


  • High-calorie protein powder
  • Includes essential vitamins and minerals
  • Available in various delicious flavors
  • It contains creatine to enhance athletic performance


  • Lots of Maltodextrin

#2: Dymatize Super Mass Gainer

Dymatize is another famous company when it comes to mass gain supplements. It has been working for many years and is known for its excellent and effective products. The Super Mass Gainer is one of them. 

It’s a high-quality weight gain supplement that can help you build muscle without doing anything special. Two and a half scoops of this supplement provide 1,280 calories. Yes, these are the same calories you will get from eating three slices of large pepperoni pizzas. 

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Moreover, it includes a blend of digestive enzymes, which can help improve nutrient absorption and digestion. This makes it easier for the body to utilize the nutrients in the supplement and support muscle growth and recovery (no more days off from the gym).

In terms of packaging and flavor, the supplement comes in a 6-pound bag and comes in a delicious cookie, vanilla, chocolate, and cream flavor.


  • Reputable brand
  • Easy to mix
  • Promote muscle growth
  • It helps in muscle recovery


  • It contains soy, which can be an allergen for some individuals
  • Relatively high in sugar

#3: Naked Mass Protein Powder

Naked Mass is a premium quality mass gainer supplement that provides a perfect blend of protein, carbohydrates, and healthy fats for those looking to bulk up and gain muscle mass. 

It is rich in calories and is designed to help you reach your daily calorie and macronutrient intake goals, making it an ideal choice for athletes, bodybuilders, and fitness enthusiasts.

Furthermore, the supplement is free from artificial ingredients, additives, or sweeteners. It is made with only three high-quality, natural ingredients: grass-fed whey protein, organic tapioca maltodextrin, and healthy fats from organic coconut. This ensures that you get the most wholesome, nutrient-dense supplement without harmful additives that may negatively affect your health.

Another advantage of Naked Mass is that it is easy to digest, making it suitable for people with sensitive stomachs. The supplement is also gluten-free, soy-free, and non-GMO, making it a safe option for people with dietary restrictions or allergies.


  • Includes complex carbohydrates and healthy fats
  • Free from artificial sweeteners
  • It comes in a large jar
  • GMO-free


  • The taste is not as appealing 

#4: Rivalus Clean Gainer

If you are looking for a complete US-made supplement, then the Rivalus Clean Gainer supplement is for you. It’s made from high-quality calorie sources like avocado, wild blueberry, ginger root, and organic quinoa. This will help you increase your size while maintaining a lean physique.

Moreover, it contains 560 calories per serving, making it an excellent energy source. The protein blend in this supplement is also impressive, with a combination of whey protein concentrate, milk protein isolate, and whey protein isolate, which can help support muscle recovery and growth. 

Additionally, it contains healthy fats such as MCTs (medium-chain triglycerides) that can help provide sustained energy and promote overall health. To use it, Add two scoops of the powder into a large glass or shaker cup. Fill with 12-16oz of cold water and shake it before consuming.


  • Six unique flavors
  • US made
  • Relatively affordable
  • Support muscle recovery


  • It contains artificial sweeteners and flavors


This formula provides a great middle ground when it comes to calorie intake. It offers 700 calories per serving and is a great way to fuel up before workouts. 

Moreover, it provides a diverse range of amino acids, which are essential building blocks for muscle tissue. The supplement also includes a variety of vitamins and minerals that can aid in the maintenance of healthy bodily functions.

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One of the major benefits of BSN True Mass is its low sugar and fat content. This makes it an excellent choice for individuals who want to add more protein to their diet without taking on excess calories. Additionally, the supplement comes in several delicious flavors that will satisfy even the pickiest eaters.


  • Good Macro splits
  • Low sugar content
  • 4:1 ratio of carbohydrates to protein
  • Excellent source of fiber


  • Expensive

#6: MuscleTech Mass-Tech Extreme 2000

MuscleTech Nitro-Tech Extreme is a premium protein powder and comes in a 4-pound container. By providing an impressive 1,830 calories, this product has the potential to help you achieve the Mass and weight that you may have struggled to gain in past years.

It provides everything you need to pack on extreme Mass and build muscle. This hardcore mass gainer contains a powerful 5-in-1 formula that helps you bulk up, smash through strength plateaus, and achieve the body of your dreams.

One of the key features of Mass-Tech Extreme 2000 is its high protein content. With 80g of premium protein per serving, this mass gainer provides your body with all the essential building blocks it needs to build size and muscle. 

It delivers more protein than most other mass gainers on the market, making it a superior weight gainer with better calories and bigger results. 

For optimal results with Mass-Tech Extreme 2000, blend one serving with 20 oz of water or skim milk and drink once per day. Furthermore, you can consumed it any time of the day.


  • Massive calories
  • Proven muscle-building ingredients
  • High protein content
  • Advanced Muscle Mass Formula


  • It fills you up quickly
  • Huge glycaemic load

#7: Mutant Mass Weight Gainer

Mutant mass weight gainer is the last supplement on our list of the best mass gainers for skinny guys. But it doesn’t mean it’s of no importance.

Mutant Mass is a highly effective weight gain supplement designed to help you achieve your bulking and growth goals. This enhanced gainer supplement is also packed with BCAAs/EAAs and waxy maize, which greatly impresses me. 

Coming to its protein content. Each serving provides a whopping 56g of quality protein from a blend of whey isolate, concentrate, and casein. This combination of proteins gives your muscles a constant supply of amino acids essential for muscle growth and repair.

Furthermore, Mutant Mass is made with whole-natural foods, including barley, sweet potato, rolled oats, avocado, coconut oil, flaxseed, pumpkin seed, and sunflower oil. With 1100 calories per serving, it is an excellent choice for those looking to gain weight and build lean muscle mass.


  • Over 1100 calories
  • It comes in two-size packaging
  • 52% Less Sugar than the Previous Formula
  • 6 Custom Gourmet Flavors
  • Show quick results


  • Artificial sweeteners are used
  • Difficult to consume more than one serving per day due to the large scoop


When it comes to choosing a mass gainer supplement for skinny guys, there are several key factors to consider. These are the following:

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Protein Content

Protein is an essential nutrient that is crucial for the proper functioning of the human body. Moreover, it is the building block of muscle, so choosing a mass gainer supplement with a high protein content is essential. Take supplements that contain at least 20-30 grams of protein per serving.

Calorie Content

Most skinny guys have a fast metabolism, which creates hindrances in gaining body mass. Fast metabolism refers to a term used to describe the rate at which the body burns calories and converts food into energy. he If you have a fast metabolism, you will burn calories at a higher rate than those with a slower metabolism, making it more difficult for them to gain weight. 

Therefore, In order to gain weight, you need to consume more calories than you burn. I suggest you go with a supplement that provides at least 500-1000 extra calories per day.

Carbohydrate Content

When selecting a mass gainer supplement, it’s also essential to pay attention to the carbohydrate content, as they provide energy to the body. Complex carbohydrates, such as those found in oats, sweet potatoes, or brown rice, are an excellent choice, as they are absorbed by the body slowly and provide a steady energy supply. 

Moreover, a supplement that comes with complex carbohydrates can help prevent blood sugar spikes and crashes, allowing for sustained energy levels throughout the day.

Healthy Fats

Not all types of fats are harmful; some are great too. Yes, I am talking about healthy fats. Healthy fats are crucial for overall health and can help you gain weight. That’s why, Look for mass gainer supplements containing such fats as coconut oil, flaxseed oil, or avocado oil.

Digestive Enzymes

Some mass gainer supplements contain digestive enzymes that can help your body digest and absorb nutrients more efficiently. This can help prevent bloating and other digestive issues.

Quality Ingredients

When it comes to health, quality should be your first priority. Many mass gainers are falsely advertised. Therefore, check for the labels and ingredients at the back of the supplement. Search for ingredients like whey protein, casein, or creatine, and if the supplement has one or all of them, feel free to buy them. 


The last thing to look for is the taste. Although it doesn’t matter much, it can still impact how you feel when consuming the supplement. Many supplements come in different flavors, including chocolate, strawberry, and cream. Go for the one that suits you the best, and you will enjoy the supplements for the rest of your life.


Mass gainer supplements can be an effective means of gaining weight, if all else fails. These supplements are primarily made to boost your calorie intake and muscle mass, helping you achieve your desired body shape. 

Moreover, it’s important to know that no single supplement can work for everyone. It’s because everyone has their own requirements and taste. But in general, a high-calorie mass gainer would be a suitable option if you want to add weight to your body. 

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