12 Best Weight Gain Supplements For Skinny Guys

best weight gain supplements for skinny guys

Check out the best weight gain supplements for skinny guys review!

When men first begin working out, many of them find it difficult to gain weight or muscle mass. If you’re a gym rat, you may be shocked to learn that your diet and lifestyle regimen aren’t having the desired effect. There are many causes for this, but one is that you aren’t consuming plenty of the proteins and vitamins you need to bulk up.

You must test Minerals, vitamins, carbohydrates, Proteins, and other nutrients beforehand if your diet isn’t providing enough of them. Weight reduction may be difficult for many individuals, but gaining weight can be just as difficult.

Best Weight Gain Supplements for Skinny Guys

Following are the best weight gain supplements for skinny guys 2021:

1. NOW Sports Nutrition, Carbo Gain Powder

best weight gain supplements for skinny guys

If you’re a newbie, NOW Sports Nutrition is a superior choice since each serving has 250 calories.

The GMP-compliant plant where the supplement ensures premium quality control. Pure maltodextrin, the carbohydrate used in Carbo Gain, is a complex macronutrient. It has non-GMO, non-GMO-processed maize.

Glucose polymers, maltodextrin digests, and processes form this product without causing stomach. Problems like bloating, burping, or acid reflux because of the glucose polymers that make up maltodextrin can arise. The absorption rate is very quick, particularly if you’re an active person after consuming it.

Sports Nutrition carbo powder now emphasizes a high-carbohydrate diet rather than a protein-based one. The reduced calorie content also means you may have more servings per day or fewer, depending on your place to start and nutritional needs.

Carbo gain powder offers a milder, more balanced flavor than our initial pick. However, it may have flavors by mixing it with other grains, carbohydrates, and proteins. In other words, either chocolate or vanilla essence is the option. That may be a turnoff for some people.


This product is good only for those above the age of 18. If you’re pregnant or breastfeeding, getting treatment, or otherwise have a medical problem, talk to your doctor before using this product.

Dosage & Instructions

Blend half a cup of Carbo Gain powder with 16 ounces of water or beverage for a delicious and effective energy boost. For optimum effects, use this product prior, during, and after vigorous physical activity.

If you’re going to be working out for at least two hours, make twice as much of this dish. After unpacking, keep the container in a dark, cold location to avoid mildew.

2. BSN TRUE-MASS Weight Gainer

best weight gain supplements for skinny guys

No matter what your level of experience with weight gain pills is, BSN True-MASS weight gainer is one of the best weight gain supplements for skinny guys.

Because it has 700 calories per serving, this recipe is ideal for those who fall somewhere in the center of the spectrum. You can, of course, change the portion size and quantity. This is a great choice for those who don’t eat a lot of carb-heavy meals.

Carbohydrates are present in Twofold in this formula by the amount of protein. With 45-50 grams of protein, including micellar casein, hydrolyzed whey protein, and egg whites, this is the perfect carb and protein combination.

Read: Top Rated Uric Acid Supplements

This isn’t the ultimate choice for vegetarians since it contains sensitive components like soy and seafood. Using an electric mixer, you may quickly create smoothies with additional nutrients like grains, fresh or frozen fruits, and different proteins.

There is no creation for muscle development, in the sample. You should not concern about gaining muscle mass however since this recipe is full of protein.

In addition, this mixture assists sportsmen who engage in strenuous training and aid with muscular soreness and recuperation in general.


This product contains components such as milk, egg, wheat, and soy. This item marks in accordance with U.S. regulations. Their contents, labeling, and allergy cautions may vary from those of similarly-priced exported goods abroad.

Dosage & Instructions

A person in need of a substitute to normal meals that are high in calories and nutrients so that they may increase their lean muscle mass. Take 3 scoops with 16 ounces of cold water or your favorite beverage.

To get the desired effect, experiment with different amounts of liquid.

Drink one serving each day, or as required to meet mass-gaining demands. Adding milk to your smoothie can boost the amount of protein and calories you consume per dose while also giving it a delicious milkshake flavor.

3. MusclePharm, Combat XL Mass Gainer

best weight gain supplements for skinny guys

In comparison to other weight gainers, MusclePharm’s 250 g carb mix allows you to put on weight fast. In a cGMP-registered laboratory, it’s been produced and is free of gluten.

It’s important to note that the recipe is a magical formula for athletes and fitness freaks due to the high caloric content (1270 calories per serving).

Muscle healing and function both accelerate while using this supplement. Adding fruits and other tastes to your prescription, as well as mixing them with your meals, can improve its efficacy.

Finally, if you put on weight, you may maintain taking the mixture to become bigger and stronger.

Weight-gainer MusclePharm Combat XL has dense, useful calories as well as high levels of protein, carbs, and other important nutrients.

Fatty acids, complex carbs, and 4 different types of protein are all included in this mass-gaining protein powder to help you build muscle and keep it there.

 When athletes see the Informed-Choice emblem on a product, they know it has been thoroughly inspected and tested to guarantee it is free of prohibited chemicals and safe for usage.

The 1-month money-back guarantee applies to all MusclePharm items.


This supplement labels in accordance with U.S. regulations, but its contents, labeling, and allergy warnings may vary from those of similarly-priced retail goods overseas.

Dosage & Instructions

Dissolve one dose (four scoops) of COMBAT XL with 18-20 fluid ounces of ice water as a nutritional supplement to promote muscle development and repair. Take between one and three servings a day.

To get the right texture and flavor, experiment with different amounts of water.
Using milk rather than water will boost your protein consumption per dose while also giving you the wonderful smoothie flavor you want.

4. MRM All Natural Gainer

best weight gain supplements for skinny guys

Usually, it’s difficult to get weight gainer pills for a reasonable price. MRM All Natural Gainer, on the other hand, has a reasonable price and excellent value for money. It is indeed one of the best weight gain supplements for skinny guys.

Because of the high protein content and presence of probiotics, prebiotics, and vital amino acids, this food is great for making healthy lifestyle choices and boosting metabolism.

Some probiotic strains may enhance the biochemical composition of the gastrointestinal system, which in turn improves immunity and digestion, allowing you to have the full nutritional benefits of your meals.

Essential amino acids are present in these proteins, particularly Branched Chain Amino Acid (BCAAs), to promote the development of muscle mass. 

Although it’s inexpensive, the protein-rich composition with 25 grams of high-quality protein is still a top priority for this product.

It’s also important to note that this mixture is non-GMO, natural, gluten-free, and appropriate for vegetarians, regardless of the fact that it contains a lot of protein on the package.

However, this mixture’s maltodextrin and amount of sugar ensure rapid and efficient weight increase by fueling your muscles and body quickly. It’s here with natural sugars like stevia and cocoa and tastes like chocolate.


Take this one of the best weight gain supplements for skinny guys with meals as a preventative measure. Never use this product to try to lose weight.

Dosage & Instructions

Use in accordance with the instructions provided on the packaging.

5. Optimum Nutrition Serious Weight Gainer Powder

best weight gain supplements for skinny guys

Starting your weight gain and muscle-building path with Optimum Nutrition is an excellent idea as it stands among the best weight gain supplements for skinny guys.

The serving size is 1,250 calories, which means you can jumpstart your weight growth and exercise regimen if you’re willing to expend that many calories.

Each dose of the formulation has 50 grams of protein and comes in a variety of flavors. Moreover, each meal contains 250 grams of carbohydrates. Vitamin C, Vitamin D, and Vitamin E are among the 25 vitamins and nutrients included in the full recipe.

Aside from that, Zinc helps your body stay healthy and strong while you exercise. In addition to vitamins and minerals, creatine, glutamine, other muscle-building nutrients are also present.

It comes in a variety of flavors and you can quickly and simply make it in a blender, as previously stated. Adding fresh or frozen fruit and other high-carb and high-protein foods like almonds, almonds, nut butter, and others can aid in your goal of gaining weight more efficiently.

Dosage & Instructions

When you’re hungry between meals, after a workout, or just before bed, take this supplement.

6. Rivalus Clean Gainer

best weight gain supplements for skinny guys

The Rivalus Clean Gainer supplement is a great choice for athletes looking to gain muscle growth and strength. No of your fitness level, 560 calories per portion may help you gain mass and muscle development if you exercise out regularly.

A dairy protein mix makes up the bulk of this gainer’s protein content.  It also has 90 grams of complex carbs and 8 grams of sugar, making it ideal for those on a diet that is free of sugar.

Sunflower, flaxseed, and avocados provide the necessary, healthy fats included in the formula’s little amount of fat.

Sporting events may be conducted without fear of injury. It’s also excellent since it’s simple to create and combine with the other fruits, herbs, carbohydrates, and anything else you want. It’s available in a variety of tastes as well.


Includes Milk, Egg, Soy Lecithin, and Wheat Germ Oil. Produced on the same lines as goods containing peanut flavor, wheat, and fish oil. 

Dosage & Instructions

Use a blender or a big glass to contain two scoops of the powder. Put in between 12 and 16 ounces of cold water and stir. Mix or stir the mixture. After an exercise and before going to bed, have a cup of this.

7. Muscle Milk Pro Series Protein Powder

best weight gain supplements for skinny guys

Muscle Milk Genuine Protein Powder, comes in 28 servings, makes increasing weight a tasty pleasure, and is undoubtedly on the list of best weight gain supplements for skinny guys.

50 grams of protein per serving assists with weight growth, muscle development or repair, and recuperation, as well as preserving muscle mass after you gain weight.

A great protein source, Muscle Milk Pro Series Protein Powder aids in muscle repair and growth after exercise.

It’s preferable to use protein powder with gradual and rapid release components than just whey protein. The mix also includes 20 different vitamins and minerals. This is critical if you want to develop a robust and long-lasting metabolism.

NSF certification for recreation is also carried by the formulation. Bone health benefits include this formula. Among the 20 mineral and vitamin combos, Vitamin D & calcium are present because they boost immunity while also supporting healthy bones and muscles. Leucine, for example, is an essential amino acid for muscle development.

You may take it during exercises or in between meals. In addition, it may blend and combine with other nutrients.

The easy-to-combine formula includes Muscle Milk Pro Series Protein Powder into your favorite shakes, smoothies, and other dishes. Use before, during, or after exercises to help develop lean muscle. You may also take it before bedtime you sleep better.

You should Muscle Milk Pro Series Protein Powder consume half to one hour after a workout to optimize restoration. At this time, your body is ready for refilling fuel reserves, growing and mending muscles.


Milk and soy products are used to make this product. Do not rely on these items for all of your nutritional needs.

Dosage & Instructions

Use either 1 scoop (41.2 g) or 2 scoops of powder in an 8-ounce serving of water, depending on your preference.

For those looking to bulk up and pack on muscle mass, the following dosage is better: Pour in 16 ounces of water and add 3/4 cup in each day.

Those trying to lose weight yet watch their caloric intake should use the following method: Pour 8 ounces of water over 6 tablespoons of the mixture each day.

You may consume Muscle Milk Pro Series 50 prior to the actual working out, or even just before going to bed.

8. Optimum Nutrition, PRO GAINER

best weight gain supplements for skinny guys

Browse no farther than the PRO GAINER, which has 650 calories of protein and carbs per serving to help you gain more weight when doing a lot of hard weightlifting and exercise.

There are 60 grams of protein in the mix, compared to 85 grams of carbohydrates. Vitamins and minerals are also added to make it a more complete food.

Irritants such as cow’s milk and eggs, as well as soy and corn, are found in this product. As a result, even if you’re a sportsman trying to gain weight, you may do this without fear of getting into trouble.

The PRO GAINER recipe is simple to make and may be customized with different tastes and additives. You may also drink it as a smoothie during meals or as a replacement for your everyday meals.


Only a competent, registered clinician or dietitian should recommend this to diabetes patients or hypoglycemic.

Dosage & Instructions

Pro Complex Gainer may be mixed with water, semi-skimmed milk, or your favorite drink once one full scoop has been added. After that, use a spoon to combine the ingredients. Shake till the powder is thoroughly mixed, approximately 20 seconds.

To have a smoother texture, mix 1 scoop with 6-8 fluid ounces of low-fat milk rather than water.

9. Optimum Nutrition Gold Standard Whey Protein

best weight gain supplements for skinny guys

Whey is a simple-to-digest milk protein. It has had little processing, thus many of its minerals and vitamins have been preserved. Like low processed dairy items like cheese and yogurt, most dietitians and nutrition experts regard it as a whole diet.

Despite this, whey protein powder is closer to a chicken breast in terms of nutritional value-rich protein concentration.

What are the benefits of whey protein for Weight Gain?

Because the protein we consume is used to create our myofibrils, we can only develop so much muscle when we’re not getting enough protein.

It’s certain that we’ll put on fat if our pace of muscle development is constrained when we’re trying to put on weight. We may grow lesser muscle and far more fat if we don’t get adequate protein in our diet. This isn’t good.

The primary reason for this is that the average person consumes much too much protein. No one is to blame, not even them. Calorie estimations and nutrition labels are often incorrect. For instance, a fascinating investigation looked at the leading whey protein supplement manufacturers.

Several common protein powders had far less protein what they advertised, according to the research, which quickly went global. The same may be said about food labeling.

Whey Protein Dosage: How Much Should You Have Every Day?

Most individuals will have no problems with 2–3 scoops of whey protein in a day. Although this does not imply that you should consume enough whey protein on a daily basis, if it is assisting you in meeting your protein goals, then it will help you build muscle more quickly.

You need around 0.8 grams of protein per pound of body weight each day to build muscle as fast as feasible. That equates to 120 grams of protein each day for a 150-pound male. You’ll gain muscle at a slower rate if you do anything less.

You won’t need any more whey protein after you’ve achieved your goal. Beyond that, it’s debatable whether or not it’s detrimental. There will be no additional muscle gain as a result of using this supplement.

Then again, maybe the protein in your diet already makes whey unnecessary for you. Consider saving the whey protein for post-workout consumption. As an alternative, you may need a few scoops of powder per day since your diet is deficient in protein.  Quite often, you’ll find yourself in this situation.

Whatever the case may be, the most essential thing seems to be to get protein in your diet as a whole, not only from whey protein. In the end, it’s your choice whether you want to increase your consumption of chicken, greek yogurt, whey protein, soy protein powder, or chia seeds. Everything will go as planned.

What Makes Whey Protein Powder the Perfect?

In comparison to BCAA supplementation, whey protein offers all the same advantages at a quarter of the cost along with many times the number of calories, vitamins, and minerals.

whey protein is an excellent pre-, intra-, or post-workout supplement due to its ability to promote muscle development while also being easily absorbed. This becomes far more critical when performing comprehensive exercises since you’ll be promoting muscle development all over your body.

In professional weight gainers, these four compounds are often found together since it’s easier to mix them. Even while you could purchase a pre-mixed weight-gainer, most of us prefer to have the two components accessible independently so where we can better manage our gaining muscle calories.

10. Pure Creatine Monohydrate

best weight gain supplements for skinny guys

The most well-known and one of the best weight gain supplements for skinny guys is creatine. This is for a valid reason. Studies show that it improves muscle mass and power. You will develop greater muscle and power if you add creatine to your morning coffee.

How Safe and Healthful Is Creatine Supplementation?

CREATIN is also advantageous because of the many decades of research that have shown its remarkable safety as well as healthfulness.

A professional should be consulted before using creatine if you have a renal problem or there is a likelihood of having kidney damage. This is because there is some worry that the supplement may harm your kidneys.

To be hydrated, all you need to worry about is making sure you’re getting sufficient water each day. Creatine draws fluid into your muscles, so if you don’t drink too much water, you may end up with stomach pain. For this reason, creatine is often found in beverages like water and protein drinks.

When using creatine, how much more muscle mass can you expect to see?

In a study, creatine increased muscle development in amateurs who were newcomers to weightlifting by 50%, resulting in an additional 3 pounds of muscle gain.

As their muscles get completely filled with the additional creatine, one would anticipate that impact to fade, still, they’d see somewhat quicker muscular development.

Creatine Non-Responders: Are You One of Them?

Approximately 25–33% of individuals do not react in any way to creatine. Creatine non-responders are those who don’t adapt to creatine. It’s unclear why some individuals react to creatine while others don’t, but it may be related to the number of meat people consume on a daily basis.

Creatine seems to be more effective if you’re a vegan or vegetarian. It seems to have a lesser impact if you consume a lot of red meat.

This is an excellent illustration of the wide range of outcomes that may be obtained with dietary supplements. Creatine may have a greater-than-average reaction in some individuals, while it will have no effect on others.

11. Nutricost Caffeine

best weight gain supplements for skinny guys

We must exercise if we want to gain muscular mass. If we want to lose weight, we must go to the gym and perform the workouts. Even if we’re drained and cramping from working out. Even though Elden Ring would be a better fit.

Caffeine comes into play here. A little amount of coffee may lift your spirits if you’re feeling down. As a result, you’ll be able to make it to the gym on time and give your exercises your best while competing against yourself.

 Caffeine is a “stimulant” substance, meaning it helps with performance by increasing endurance, energy, and recovery time. It has the potential to motivate us to work out even more. However, you’d have to take a certain amount of caffeine to get such results.

If you’re a typical thin guy, you’d need to consume around 300 mg of caffeine to noticeably improve your workout results. To put it another way, that’s the same as drinking two big energy drinks.

It’s not enough to harm you, but it may certainly disrupt your sleep and overall energy levels if you’re exposed to it for an extended period of time. Caffeine, on the other hand, has the potential to become addicted.

But we want to become larger, stronger, and better off so why not do it for those reasons as well? If a supplement gets in the way of it, I’m likely to stop using it. Another option is to reduce the dose to a more manageable level.


Caffeine content is comparable to that of one to two cups of coffee. Don’t use any caffeinated products while taking this one since this may result in irritation and headache as well as insomnia and irregular fast heartbeats.

If you take it on fasting days, you may feel sick. Do not exceed 400mg of caffeine in a day from whatsoever source.

What is the best way to consume caffeine?

Take 1 pill every day with 8-12 ounces of water as a food additive, or as recommended by your healthcare provider.

12. Universal Real Gains Weight Gainer

best weight gain supplements for skinny guys

For a long time, Universal Nutrition has been making muscle-building supplements.

There are more than 50 grams of highly nutritious in each serving of this specific item, and each serving has around 600 calories.


Prior to starting any diet or exercise plan, speak with your doctor.

Dosage & Instructions

Take one serving before sleeping and one serving during meals. Alternatively, it may be taken to supplement one meal each day. Due to the strong nature of this formula’s nutrients, you may wish to use Half serving up to 3 times daily. 


  • Each serving has over 600 calories, making it the ideal mass gainer for professionals.  
  • Fiber and inulin in this easily digested recipe help you get it through every Real Gains muscle gainer smoothie you drink.
  • Fiber and inulin in this easily digested recipe help you get it through every Real Gains muscle gainer smoothie you drink.
  • You’ll want your following weight gainer Real Gains smoothie after tasting the mouthwatering taste in every scoop. You may easily dissolve it with water or your favorite drink.
  • Rapid and slow absorbing carbohydrates and proteins are included to keep your muscles well-nourished and your body developing while you use the product.


  • This product contains artificial sweeteners in the form of sucralose and acesulfame potassium, therefore if you are trying to avoid them, you should avoid them.
  • The business also fails to disclose whether or not its goods have been evaluated by a third party.

Adverse Effects of using Weight Gainers

People with dietary intolerances may experience stomach discomfort while using weight gainers. Start with a little quantity and work your way up slowly if you’re unfamiliar with them.

Without physical activity, the usage of these best weight gain supplements for skinny guys is more likely to have fat than muscle. As a result, higher amounts of pure protein in your diet may be more beneficial for some individuals than decreasing it for others.


Having difficulty putting on weight? Your caloric intake may be too low.

Some people discover weight gainer pills useful for reaching their weight goals, even if they can get all the calories they need only from diet.

If you want to discover the best supplement for your needs, you should think about the nutritional benefits, portion sizes, tastes, and 3rd verification before making a purchase.

Since weight gainer supplements are not regulated by the FDA, it’s impossible to know whether what you’re getting is what the label says it is.

Before beginning a new product, it’s always a good idea to consult with your physician.

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