Best Weight Gainer Supplements Without Side Effects (March 2021) – Top 12 Reviewed

Hitting the gym is a great way to boost your health and physique. But what about those amongst us that are still struggling to gain weight? By gaining weight we mean building lean muscle mass, as opposed to just gaining normal weight as fat. Those of us who want to build up our muscles and become stronger and leaner may opt for body supplements for weight gain. Yet, there are so many to choose from! Where do you even begin? Well, here at Supplemania, we are cutting out the hard work for you with our best weight gainer supplement without side effects review.

Using the most effective weight gainer supplements can help you enjoy a wide range of benefits. Such a supplement boosts your fat-burning metabolism, can increase your libido and performance, helps to build lean muscle as well as having some psychological benefits, such as the ability to defend against depression and cognitive decline. You can reduce inflammation in your body too because a good supplement supports inflammatory responses in the body. You can also find one that boosts fat-burning metabolism processes!

Supplemania is proud to provide you with all the help that you need in selecting a weight gain supplement. Don’t forget: we have consulted with many healthcare professionals in the production of this research as well as consulting doctors for information and their well-informed opinions. You really have hit the right link in finding the best weight gain supplement reviews out there on the internet today. Read on to find out which one is best for you without any harmful effects.

Why Should You Trust Us?

Of course, if you’ve been browsing the web, you’ve probably found that there are hundreds of weight gain supplements out there and a fair few reviews too. So what makes us at Supplemania the ones to trust when it comes to reviewing these supplements? Simply put, we are experienced! We have been running methodical product research for the past five years. Furthermore, our only aim is to help our readers choose the right product for them. Indeed, we have reached our conclusions on the best weight gainer supplements without side effects after an impressive 48 hours of research.

Throughout the process, we have had several people involved in order to eliminate any subjective or biased reviews. We have also reviewed different brands of best weight gain products, which illustrates further our transparency and lack of bias when it comes to brands. We have reviewed over 50 products from many brands before we came to a shortlist of the best 20 of those. After this, we selected our top 12 best weight gainer supplement without side effects and placed them here in this review. We have deliberately chosen only those supplements that actually help people to boost their fat-burning metabolism, increase libido and performance, build lean muscle, defend against depression and cognitive decline and, last but not least, help people to reduce inflammation in the body. In reading our reviews, you really can be assured that you are reading the best weight gain supplement reviews out there on the World Wide Web today.

Why Do You Need Weight Gain Supplements?

For most of us, the main problem when getting into shape is concerned is losing weight. However, there are also many people from whom gaining weight is a challenge. These people, commonly known as ‘hardgainers’ are often those amongst us who have abnormally fast metabolisms or teenagers who are still growing. This is where the best natural weight gainer supplements come in. Essentially, they are much like a protein powder supplement without side effects. The key difference is the number of calories per serving.

These supplements are designed specifically to help to provide you with everything you should need to gain a lot of muscle quickly. This is why they contain loads of calories as well as proteins and carbs. It is this combination which makes the user able to bulk up at a more rapid rate than normal.

Calories, in this case, are essential and can actually be transformed straight into the muscle. Without the use of weight gain supplements, many people find that they feel like they are eating 24/7 in order to cram in the calories, which can be both inconvenient and annoying. With safe weight gain supplements, your caloric needs are met without too much effort. Some products can contain between 1000 to 4000 calories in each serving! Let’s face it, the body can only do so much with the calories you consume: get bigger, smaller or maintain. You can’t get bigger unless you consume enough calories to do so. Of course, ideally, you get these additional calories from calorie-rich foods. But like we’ve said, for some of us that feels a bit like a chore!

Weight gain supplements can be consumed both before and after a workout or even during! Most professionals prefer to take their supplements before their workout. If this is what you would like to do too you need to ensure that your chosen weight gain supplement has a good carbohydrate content as this will feed the muscles as well as increasing the levels of glucose in the blood. This will drive amino acids into the muscle cells and you will get optimum benefit from the weight gain supplement.

Let’s have a look at the benefits of weight gain supplements:

  1. They’re rich in carb

    These will give you the necessary energy for an intense workout.

  2. They contain whey protein powder

    The quality of this whey-protein is high too, which makes them a fantastic supplement if you are a bodybuilder. Some weight gain supplements also have dietary fat as an ingredient. This can help you build a leaner physique.

  3. Aids in the recovery of the muscles as well as muscle growth

    That’s a great advantage for the bodybuilders amongst us. This is useful when you are on a bodybuilding regime and want to have top results and therefore good recovery in the muscles.

  4. Vitamins and Minerals

    Weight gain supplements also keep you healthy with their doses of different vitamins and minerals.

  5. High in Fiber

    Yep, weight gainers also contain fiber. Fiber keeps your digestive system in check, reducing bloating and improving digestion. In this way, they help keep you in tip-top condition.

Do You Want to Keep It Natural?

If you’ve worked out that weight gain drugs supplements aren’t quite what you’re after, then, of course, you can keep it more natural by choosing all natural weight gainer foods to boost your caloric intake and therefore your weight gain.

To build lean muscle, you should challenge yourself with physical activity first. However, if you don’t fuel your body properly then you will not be able to make the gains that you are desiring. Foods high in protein are essential to building lean muscle but you also need carbs and fats too in order to have the right energy for working out. If you want to gain weight, you should be eating a diet that’s rich in muscle-building foods that are calorie-rich. There are also many vegetarian diet options which go perfectly well with your muscle gaining journey. Some natural supplements to gain weight fast are given in the following:

  • Eggs: Eggs are a great way to start the day. They’re rich in protein as well as healthy fats and vitamins such as the B vitamin group. Eggs also contain a high amount of leucine, which is an important amino acid when it comes to muscle gain.
  • Salmon: Salmon is great for your health and for building muscle too. Every 3 oz. has around 17g of protein and 2g of omega-3 as well as B vitamins too! Omega-3 fatty acids have an important job in the health of the muscles and can even increase muscle gain.
  • Chicken Breast: One of our ‘staples’, chicken breast is a great muscle-gaining food. Why? Because it’s packed with B vitamins, and each 3oz. has around 26g of protein! It’s also been shown that high-protein diets that contain chicken can even help with fat loss.
  • Greek Yogurt: Dairy products are excellent nutritional food supplements for weight gain. They are the source of protein including casein protein (slow-digesting) and whey protein (fast digesting). Research has found a link between increases in a person’s lean mass with the consumption of a mix of slow- and fast-digesting proteins from dairy. Greek yogurt is particularly good because it contains around double the protein of regular yogurt.
  • Tuna Fish: There’s about 20g of protein in a 3oz. serving in tuna as well as high quantities of Vitamin A and some of the B Vitamins. There’s also some omega-3 in there too. Omega-3 has shown to reduce the loss of lean muscle, particularly in the older members of the population.
  • Lean Beef: There’s been some research which has shown that the consumption of red meat can increase the lean muscle mass that weight training can provide. However, you must make sure that you are careful to choose lean beef. In a serving of ground beef that’s 70% lean, there’s around 15g of fat and 228 calories. With ground beef that’s only 5% fat, there’s more protein with only 5g of fat and 145 calories.
  • Soybeans: A portion of soybeans can give you 4g of protein as well as many minerals vitamins including vitamin K, phosphorus and iron. Iron is especially important for women as they are more prone to iron-deficiency due to menstruation.
  • Shrimp: Shrimp are brilliant for muscle gaining as they are pretty much solid protein with every serving having 18g of protein and only 1g of fat. There aren’t any carbs in there either! As a result, it’s an easy source of protein without too many calories being added on.
  • Cottage Cheese: A low-fat content cottage cheese has a whopping 28g of protein as well as loads of leucine, that all-important amino acid for muscle-building.
  • Beans: Many bean varieties including black beans, kidney beans, and pinto beans have about 15g of protein in each cup once cooked. Beans are a great source of plant-based proteins (shout out to the veggies and vegans!). They’re also a great source of B vitamins and fiber!
  • Quinoa: Never heard of it? It’s pronounced keen-wa! This food is a great source of the carbs that you need to help you with your muscle-building workouts. Each cup has about 40g of carbs, 8g protein, 5g fiber as well as phosphorous and magnesium. Magnesium is important for muscle and nerve function, which are put into practice every single time that you move! Many bodybuilders and fitness enthusiasts take magnesium supplements on a regular basis to gain these benefits.

In sum …
Many foods can aid you in your quest to gain lean weight. Many of these foods are packed with protein and will help your muscles to grow as well as recover after activity. You can also try homemade protein shakes for weight gain. Of course, you must ensure that you eat carbs and fats in order to fuel your workouts. Many of the foods we have listed will also help your body to receive many of the minerals and vitamins that you need to function optimally. If you’re aiming for gaining weight in the form of lean muscle, then eating more calories from these foods will help you.

How We Picked and Tested

To choose our top twelve weight gain supplements we looked through around 21,000 user reviews! This helped us to determine the important features that people seek in selecting a weight gain supplement. There are some side effects to these supplements but we selected only those which had the fewest side effects. We analyzed about 50 different products, all of which have different features and styles.

As we explained, we then shortlisted 20 different healthy weight gain supplements from our researched products. We visited the websites and read the product guidebooks of each and went through the descriptions on the different store pages and the individual critical reviews to look at the typical features of a product such as these.
We analyzed all of these features on our products by doing side-by-side comparisons whilst considering their benefits. We then compared the final reviews of our volunteers and matched them against the research data that we had accumulated.

With all of this data in hand, we then selected the best 12 products and we are ready to present our verdict to you. We have the best weight gain supplement reviews for you right here!

Foreword and Disclaimer:

Dietary supplements come in a variety of forms that are eaten or drunk to support good health and to supplement our diet. They are not prescribed medicines and nor should they be considered as a substitute for food. Some common supplements are:

  • Vitamins
  • Minerals
  • Protein
  • Weight gain

You can take these supplements to help gain weight. However, you can’t rely only on these supplements to gain weight without working out. All the supplements clearly state the side effects and a disclaimer on the packaging and on the product’s website. You have to justify some side effects and our volunteers found that not all types of ingredients in supplements are suitable for everyone. Also, it could affect you if you take more than the prescribed amount. The side effects should be read clearly from the packaging, as well as the dosage instructions.

There should be a legal disclaimer on the packaging too. For example:

Please consult your doctor before using this supplement if you are nursing, pregnant, have a medical condition or are taking other medication. Do not use this product if the seal is broken. Keep this product and all supplements out of the reach of young children. Allergen Warning: This product was produced in a facility where ingredients containing egg, milk, soybeans, fish, shellfish, peanuts and tree nuts are also processed.

Warnings & Side Effects:

Given the nature of supplements, the vast majority of these products come with side effects.

Of course, the side effects of weight gainer supplements can sometimes be subjective. Some users of the products have reported side effects but it isn’t a guarantee that all users will experience the same ones. For example, sometimes people who have certain allergies can suffer from some side effects that others may not experience. Therefore, regardless of the side effects of each product, a user may not come across any side effects at all.

If any severe side effects occur when you take a supplement, you should stop using the supplement with immediate effect and consult your doctor as soon as possible.

The FDA (The US Food and Drug Administration) doesn’t control the efficacy of any supplements before they are put to market.

We have selected products with the side effects in mind and have tried to ensure that the supplements on this list are those with the fewest side effects both in severity and number. So what are the associated side effects of weight gain supplements?

Primarily, you should be aware that if your caloric intake and expenditure isn’t carefully matched then you could still end up gaining weight only this would be stored as fat rather than cause muscle gain. You should make sure that you are following a workout regime whilst taking any no side effect weight gainer; otherwise, it is most definitely a waste of money and time. A gainer needs to be taken alongside good exercise and a healthy diet. The outcome of your endeavor depends on many factors. Besides taking weight gaining foods you need to also learn from other’s weight gain journey in the initial phase.

Of course, if you can meet your nutritional and calorific needs with food alone then you’ve little need for a weight gainer, so take caution if this is the case. These are only meant to be taken if meeting your daily goals is too much of a struggle. Consuming too much will make you fatter, simply put!

Another disadvantage of these products is that many people find them hard to consume. They’re heavy on the stomach and are a lot thicker than your regular protein shakes. In fact, some are best made in a blender due to their thickness. A lot of people are put off by the thickness of the product, unfortunately. The taste isn’t popular with many people either and can linger as a long-lasting aftertaste, unfortunately. Of course, this is entirely dependent on the product, so try a few different ones if this is an issue for you. You can also try homemade protein shake recipes that might suit your taste buds better than the store-bought shakes.

In terms of other side effects, everyone reacts differently to different products, so it may just be a case of working out which ones suit you best. You should also be aware of the creatine and caffeine combo as when these two products are mixed they can leave you dehydrated, which you certainly don’t want if you’re trying to work out. Don’t forget that the caffeine content could leave you as an insomniac, depending on when you consume them and when you work out.

It should go without saying that you should heed and cautions and warnings on the packaging. If you are in any doubt, especially if you have any underlying health conditions, please consult your doctor before you take these supplements.

Best Weight Gainer Supplements without Side Effects: Our Top 12 List

We have found 26 key features that fast weight gain supplements for men and women usually have and have considered 20 best bodyweight gainer supplements to evaluate further, as we mentioned earlier. This provided us with an analytic result that helped us in shortlisting the 12 best weight gainer supplement without side effects. We compiled all of the information including that from the product manual, drug fact sheets, and our volunteers. We looked at each product to find its actual value over its pricing and effectiveness. We also considered the life cycle of each product by looking at the frequency of the reviews to determine any misconceptions. We are therefore confident enough to provide you with the best mass gainer supplement without side effects reviews for the best products in 2019.

To look at our results and analysis in further detail you can access our research report by liking one of the social media pages.

Best in Powder: Optimum Nutrition Micronized Creatine Powder (114 servings)

Supplemania Score
9.3out of 10
Percentage of Positive Reviews: 86.0%
Percentage of Neutral Reviews: 6.2%
Percentage of Negative Reviews: 7.8%
User Ratings
Effectiveness
Value
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Optimum Nutrition (ON) is a sub-company of Glanbia, which is a world-wide nutritional company. Glanbia operates two top brands in sports nutrition, ABB (American Body Building) and Optimum Nutrition. ON has been supporting individuals in their goals since 1986. It is one of only a few companies which operate top-of-the-range manufacturing facilities which are compliant with the GMP. Optimum Nutrition ensures that all the shakes will mix without any effort due to its instantization process (which was also the first to market). Every shake will taste just like the last and also the next. Certainly, it is the best weight gainer supplement without side effects.

Powder Pick

Our top choice for weight gain

Optimum Nutrition Micronized Creatine Powder (114 servings)

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Our top choice for weight gain

Optimum Nutrition Micronized Creatine Powder (114 servings)

This supplement is made by a well-known brand that have a great reputation. The supplement will help you to learn fat, to make your body lean and encourage weight gain.

This product contains creatine monohydrate which has been highly researched and shown to be beneficial in supporting power, muscle size, and strength when it is in conjunction with high-intensity physical activities. The micronized powder is manufactured with Creapure, which is a form of creatine monohydrate which is known for its superior purity. Micronized simply means that the particles are made smaller, which means that the powder mixes more easily and is suspended in the liquid for longer than if it were not micronized as with other supplements.

Benefits:

This product is the best weight gainer supplement for skinny guys and girls, who has an ectomorph body. It increases the fat-burning metabolism in the body and gets that all important weight gain that you are seeking. It, therefore, builds lean muscle and has the added effects of increasing libido and performance as well as defending against depression and cognitive decline and reduces any inflammation in the body.

With this supplement, energy levels are increased and therefore your performance in high-intensity exercise is improved. Your recovery rate is also increased. Finally, the energy reserves in the muscles are enhanced and protein breakdown is minimized.

Directions:

In order to take this supplement, you should mix one rounded teaspoon of the powder with between 8 and 12 ounces of fruit juice or cold water. You should have one teaspoon with each meal of the day with another dose before bed for around four or five days in order to saturate your muscles with creatine.

Side Effects:

Our users reported gas. Of course, it should be noted that not all users experience the same side effects and side effects are different for each individual user. In those aspects, we found that this is the best weight gainer supplement without side effects.

best weight gainer supplement without side effects: the best weight gainer on the market

Why is this Supplemania’s best weight gainer supplement on the market in powder form?

  • This product has the highest numbers of reviews of any product that we have reviewed, at over 4860 feedbacks. We took both of their positive and negative feedbacks into consideration and the general consensus amongst the users of the product was positive with a ratio of 11 positives to every negative review at the time we conducted our research. This gives us a clear indication of how many users have reported it to be effective and, subsequently, the overall effectiveness of the product.
  • Although it has a steep price in comparison with other similar products, it is widely consumed as we have explained in giving its total number of reviews of all of the weight gain supplements. For around $14 dollars you will get 114 servings which work out at $0.15 per serving. It has above average effectiveness but is more expensive, as we have mentioned, in comparison to similar products. This is why we’ve rated it as moderate in terms of its efficacy and price.
  • In total, the overall rating of the product is 4.4/5, which is very pleasing. In fact, it’s the second highest rating of all of our products. Its review frequency is also pleasing. We looked at the last thirty reviews and how long it has taken for each set of ten reviews to be written. The last 10 reviews were received in four days, the previous 10 in five days and the earliest 10 reviews in 8 days at the time we conducted our research. From this, we can conclude that it is a product that is bought on a frequent basis but in comparison with our other top pick, it actually has the second lowest frequency.
  • Lastly, we chose this supplement because it has Creapure creatine monohydrate which supports your muscle strength and power. The powder has been micronized meaning it is mixed more easily and doesn’t settle and separate quickly. Considering everything, we gave this product 9.3 out of 10 as our Supplemania Score. Even though some of the other products have a higher Supplemania Score, we have come to the conclusion that this is our Top Pick due to its massive popularity, as shown by its number of reviews.

Best in Capsule: Sheer Strength Labs DHEA Extra Strength Capsules (60 count)

Supplemania Score
9out of 10
Percentage of Positive Reviews: 86.6%
Percentage of Neutral Reviews: 9.2%
Percentage of Negative Reviews: 4.2%
User Ratings
Effectiveness
Value
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This product is made by Sheer Strength Labs, which manufactures products for sports nutrition in the USA. It offers products for increased muscle building, performance, overall health and wellness and fat loss in addition to recipe products. The company even supplies trainers, celebrities and professional athletes. It sells the products through retail stores across the US and Puerto Rico as well as online. Sheer Strength Labs started in 2013 and is found in Austin, Texas.

Capsule Choice

All the goodness you need

Sheer Strength Labs DHEA Extra Strength Capsules

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All the goodness you need

Sheer Strength Labs DHEA Extra Strength Capsules

This pick is our favourite choice for getting all the help you need to gain weight in a tiny capsule. It helps to fat burn, whilst also increasing the amount of lean muscle you have.

This product is based on DHEA (dehydroepiandrosterone), which is an anti-aging hormone that is naturally occurring in the body and begins to decline around about aged 28. Low levels of DHEA in adults are connected to depression, anxiety, fatigue, low libido, wrinkles, sagging skin and weight gain. DHEA is not found in any food source and, as a result, the only solution to boosting DHEA levels is by taking the best lean mass gainer protein supplement such as Sheer Strength’s high-quality, pure and clinical dose supplement. If you are looking for pills or tablets to increase weight without side effects, this product might be the option for you.

Benefits:

The benefit of taking DHEA, fast weight gainer capsules, is that it boosts your fat-burning metabolism as well as building lean muscle. It also has the added bonus of increasing your libido and performance, preventing against depression and the decline in cognition. Finally, inflammation is reduced in the body by taking this product.

Directions:

This fast weight gain pills should be taken as a dietary addition with one capsule taken with a meal each day. The capsules are also suitable for vegetarians in case they have not got benefitted from vegan weight gain meal plans as we did.

Side Effects:

Our volunteers reported feeling dizzy, having a headache, acne, and groin pain. But it should be noted that not all side effects were experienced by all volunteers and that side effects are simply subjective to the individual user.

best weight gainer supplement without side effects: another great option for you

Why is this our Best in Capsule for Weight Gain?

  • To put it simply, we have taken information from the reviews of this product and there was over 400 of them at the time of writing. We looked at the positive and negative reviews and found that the general consensus among users was that this product had a positive to negative ratio of reviews at 20:1 which is the highest of all the capsule form weight gain supplements. With the data on the reported effectiveness of the product, we found that this is the best weight gainer pills available on the market without major side effects.
  • Around $17 you will get two months’ supply if you take the recommended one capsule per day. We, therefore, found this price to be slightly above average. This value is the highest in terms of effectiveness and price index in capsule form.
  • It has the highest user rating of 4.3 and a great review frequency with the most recent 10 reviews in 10 days, the preceding 10 reviews in 4 days and the earliest 10 reviews in five days at the time of our research. By this, we can understand that this product is popular amongst consumers of weight gain supplements.
  • Lastly, unlike other supplements, Sheer DHEA packs a whopping 100mg in each serving. Therefore, taking everything into consideration we gave it 9 out of 10 as our Supplemania Score.

A List of 10 Other Products We Reviewed

No. 3: Optimum Nutrition Serious Mass Weight Gainer High Protein Powder (16 Servings) by Optimum Nutrition

Supplemania Score
9.1out of 10
Percentage of Positive Reviews: 79.0%
Percentage of Neutral Reviews: 8.0%
Percentage of Negative Reviews: 13.0%
User Ratings
Effectiveness
Value
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Optimum Nutrition’s Serious Mass powder is a high calorie and high protein weight gainer with over 1250 calories and 50g of protein in every serving. There’s also 250g of carbohydrates too. This is what’s needed for serious goals in weight gain. If you’re aspiring to be bigger but have a high metabolic rate or weaker appetite then this is the supplement for you.

Packed with protein

Serious about weight gain

Serious Mass by Optimum Nutrition

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Serious about weight gain

Serious Mass by Optimum Nutrition

This supplement has an enormous amount of protein packed inside, so it really is for people who are serious about achieving good weight gain. It is also packed with healthy vitamins and minerals, giving you an all-round health boost too.

This product has over 3200 reviews, which is the third highest of our top twelve weight gain products. However, its rating is one of the lowest at 4.2/5. Rating frequencies are in the region of 8 or 9 ratings per 10 day period during our research time, which is pleasing.

Benefits:

This powder will help boost your metabolism and fat burn, will help build your lean muscle as well as increase your performance and libido. Likewise, it can defend against cognitive decline and depression. Furthermore, any inflammation in the body will be reduced. It also contains 25 vitamins and minerals as well as glutamine and creatine. A great combination for anyone looking for the best lean muscle gainer.

Price:

For around $42 you will get a 12lb pack. There’s also a 6lb pack too for around $30 dollars.

Directions:

You can use it in between meals, before bed and after weight training. You can also supercharge your gains by using a blender and adding nuts, fruits (either frozen or fresh) as well as other calorie-dense foods to boost your weight gain.

You should add two heaped scoops to a blender and fill it with 24fl. oz. of milk or cold water. You can also add other ingredients as mentioned then cover and blend on high speed for between 45 seconds and a minute. If you are just starting out with mass gainers, you should begin with only half of the daily serving in the first seven days, gradually increasing to the full-on scoop several times in a day.

Ideal amounts are worked out on your current weight. If you weigh between 100-174lb you should use just one scoop three times a day. Between weights of 175lb and 224lb, you should use 1.5 scoops and if you are over 224lbs you should use two scoops three times a day.

Available in type, size and flavors:

There are five different flavors available: chocolate, banana, chocolate peanut butter, vanilla, and strawberry. As mentioned, there’s a serious mass 12lb size and a 6lb size.

Serious Mass Side Effects:

Users reported increased estrogen levels when using this product. This could be a bonus for some female users who are entering the menopause. However, caution should be taken with all products and supplements such as these, particularly if you have any pre-existing conditions.

No. 4: GENEPRO by Musclegen Research Next Generation Protein (45 servings)

Supplemania Score
9out of 10
Percentage of Positive Reviews: 84.0%
Percentage of Neutral Reviews: 5.0%
Percentage of Negative Reviews: 11.0%
User Ratings
Effectiveness
Value
Check Price on Amazon

Founded by Dr. Brian Parks, a defense contractor pursuing a doctorate, MuscleGen Research started with barrels of whey weight gainer in Wisconsin delivered to his garage in 2014. Now they have more than 100 products on the market, aiming for innovation, quality, and improved nutrition. He’s created something which has rocked the boat in nutrition. Next Generation Protein is a protein supplement which is suitable for anyone even those with gastric complications, whey intolerance, of all ages. To put it simply, it is the best protein powder supplement for weight gain and muscle building without side effects.

Ground-breaking choice

Great for intolerances

GENEPRO by Musclegen Research

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Great for intolerances

GENEPRO by Musclegen Research

This supplement is unique in that it is a product for people who have intolerances, including issues with whey. This is great and ground-breaking for these people. A great development!

Benefits:

It’s a medical grade protein powder that’s completely flavorless, which is perfect for using every day in addition to aiding the recovery from bariatric surgery. It’s gluten-free, providing a boost to the immune system which aids in fast healing. Essentially, it provides premium protein to help its absorption and helps muscle growth. The formula is the best protein powder for skinny guys to bulk up. It’s a way of adding pure protein to your diet. There’s a combination of tri-protein and protease enzymes which means there’s a 30g protein serving with only around 1 tablespoon serving size.

Price:

For a 13.80lb container (around 45 servings), it comes in at around $49. This does make it a little on the expensive side.

Directions:

You should ensure that you read all of the instructions on the packaging and the labels. It’s flavorless so can be easily mixed with any liquid such as milk, juice, water or even soda.

Available in type, size and flavors:

This product comes in four sizes: 30, 45, 60 and 90 servings.

Side Effects:

Our users have reported some indigestion with product. Again, we remind you that not all users will experience the same side effects.

No. 5: Optimum Nutrition’s High-Protein Pro Gainer (14 Servings)

Supplemania Score
8.6out of 10
Percentage of Positive Reviews: 75.6%
Percentage of Neutral Reviews: 9.4%
Percentage of Negative Reviews: 15.0%
User Ratings
Effectiveness
Value
Check Price on Amazon

Our next pick is by Optimum Nutrition, this time their Optimum Nutrition Pro Complex Gainer. It contains high-value proteins, biologically speaking, which means that they can be digested and easily absorbed, providing you with all the amino acids you should need to support muscle building. Every serving contains 60g of protein from seven original sources. Furthermore, there’s also the added complex carbs and lipids (oils and fats) to provide you with sustained energy to ensure that the proteins aren’t used up as fuel.

Pro mix pick

See great gains with this pick

Optimum Nutrition’s High-Protein Pro Gainer

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See great gains with this pick

Optimum Nutrition’s High-Protein Pro Gainer

This supplement boasts a great mix of calories, carbs and proteins. Together, they will help you gain weight and also give you an energy boost to help you to work out for longer.

Every serving has 85g of carbs and about 4 to 5g of fiber. Additionally, there’s only 5g of sugar. The Pro Gainer also gives you MCTs (medium chain triglycerides) and other lipids that are energy-dense. There’s the added bonus of many essential minerals and vitamins too to aid the growth process. Your body needs these to process proteins, fats, and carbohydrates effectively. There’s 26 of them packed into this product.

Altogether, Pro Gainer gives you 600 calories in every serving. If you add one serving to your daily routine you’ll be able to increase your lean mass almost immediately. A pound in extra weight requires around 3500 surplus calories, no wonder it’s hard for some of us to gain!

There are more than 1330 optimum nutrition pro gainer reviews with a great review frequency at the time of writing. There were ten positive reviews for every negative review and it had a good effectiveness rating of 3.5. We gave it 8.6 as our Supplemania Score.

Benefits:

The benefits of this product are that it will aid you in your muscle building due to its mix of proteins, carbs and calorie surplus. You’ll have greater endurance and energy too. It’s ideal to replace and provide excess calories for bulking up and to fuel workouts. You can make some serious gains with this product.

Price:

This product costs around $41 for a 5lb container, making it one of the pricier items in our top twelve.

Directions:

This product mixes easily with a spoon, shaker or a blender! Perfect for making up on a morning in a shaker and leaving until it’s needed. It can be used between meals or as a post-workout supplement. Please follow all the manufacturer’s instructions on the packaging and instructions.

Available in type, size and flavors:

There are four choices in terms of flavor: double rich chocolate, banana, vanilla and strawberry.

Side Effects:

Some users, unfortunately, reported vomiting after consuming this supplement. However, it is wise to remember that whilst this was a side effect for some, it was not the same for every user of this product.

No. 6: MusclePharm Mass Gainer Combat XL Mass Gainer (16+ Servings)

Supplemania Score
8.5out of 10
Percentage of Positive Reviews: 84.5%
Percentage of Neutral Reviews: 6.7%
Percentage of Negative Reviews: 8.8%
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Value
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MusclePharm was established in 2008 and is a worldwide sports nutrition brand that has one awards and is considered an industry leader. They offer effective, safe and clinically proven supplements for athletes, no matter the sport, and any activity while offering support towards every kind of lifestyle goal. The product will help improve and build muscle and strength, help with endurance and they also do products designed to help with weight-loss (as opposed to gain in our case!) and general wellness and health-related goals.

Awesome for Athletes

Industry leading choice

MusclePharm Mass Gainer Combat XL Mass Gainer

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Industry leading choice

MusclePharm Mass Gainer Combat XL Mass Gainer

This supplement comes from a brand that focuses on supplements for serious athletes. It is safe, and clinically tested, so it will not only help you gain weight, but will also improve your endurance too.

The brand is growing rapidly and that’s a testament to the company’s commitment and dedication of pursuing their vision and also capturing the effects with its worldwide consumers: not just the pro athletes but the everyday individuals.

MusclePharm’s Combat XL helps you gain weight through its dense but functional calories mixed with essential nutrients. It’s made precisely in order to create an environment that’s perfect for building muscles that you need. It has fatty acids and complex carbs as well as four different protein sources. It works to support recovery in the muscles which lets you get big and maintain it!

It features chia seeds and flax seeds as well as MCTs. It can be used as a shake between your usual meals or as a post-workout drink for recovery. It has a delicious taste too.

This product is our most frequently reviewed product on the list with the first 10 reviews taking place in just 3 days, the second 10 in just 2 days and the third 10 in 3 days, at the time we conducted our research. There are over 3400 reviews with a majority being positive in a ratio of 6:1. The effectiveness of this product was lower rated than some, hence its position in our list. Its Supplemania Score is therefore 8.5.

Benefits:

As we explained, you need a surplus of calories to build muscle. The XL gainer contains 1270 calories per serving as well as 252g of complex carbs. This provides you with sustained energy as you work out. There’s also 50g of muscle-building protein of the highest quality which helps the process of rebuilding muscle as well as gaining weight.

Price:

For 12lb, you will pay around $30. It’s slightly above average in terms of price; however, you get a lot for your dollar and so it is one of the better value for money supplements in our list.

Directions:

In order to support muscle recovery and growth, you should mix one serving of four scoops with around 18-20fl.oz. cold water. It can be consumed between one and three times a day. You can vary the water quantity to find your desired taste and consistency. If you want to increase your protein intake, you can use milk instead of water.

Available in type, size and flavors:

There are three flavors and two sizes of this product: vanilla, chocolate milk and chocolate peanut in either 6lb or 12lb sizes.

Side Effects:

Our users reported gas during our test period, which is a mild common side effect.

No. 7 : BSN TRUE-MASS Weight Gainer, Muscle Mass Gainer Protein Powder, Chocolate Milkshake, 5.82 Pound

Supplemania Score
8.3out of 10
Percentage of Positive Reviews: 81.0%
Percentage of Neutral Reviews: 7.0%
Percentage of Negative Reviews: 12.0%
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Value
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BSN True Mass is one of the best mass gainer supplement for skinny guys or people with ectomorph body types. This product is produced by ‘True Mass’ with a delicate balance of carb and protein to ensure the best results. It also contains omega 3 type MCT fat to deliver the energy to your brain and body muscles. The way this product works is by combining both slow and fast release proteins to keep the body in a positive balance of protein. You can work out, rebuild by refueling and advance in your muscle building gains.

Body Builder

Best Mass Gainer for Skinny People

BSN TRUE-MASS Weight Gainer

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Best Mass Gainer for Skinny People

BSN TRUE-MASS Weight Gainer

If you are on the lean or skinny side and want to build mass and gain weight while also developing strength, BSN Mass Gainer will deliver outstanding results for you, with its premium protein and carb matrix.

In conjunction with a training program, this protein-rich powder will give you everything you need – all the calories, protein and carbs needed to gain weight and build up lean muscle mass.

Benefits:

Making this product an integral part of your weight gain journey will allow you to gain in size as well as in strength. As mentioned, it has everything a mass gainer needs in order to allow the user to progress towards their muscle-building goals.

Price:

It costs around $41 for a 5lb container. It is somewhat costlier than other similar products, but the nutritional value this product offers is certainly worth the price.

Directions:

BSN True Mass can be used on many occasions, before working out, after working out or before bedtime. However, the optimal time is after working out as this is the time when your body is primed for repairing and building muscles and replenishing your fuel stores.

To use, if you are someone looking to build your size and gain lean muscle mass you should mix 3 scoops with 16 to 20 fl. oz. of water. For fewer calories, just use 8-10 fluid ounces. Of course, your individual requirements, nutritionally speaking, will vary on your body type and weight, activity levels, gender and the intensity of any training or exercise.

Available in type, size and flavors:

This product is available in two flavors: Cookies ‘N Crème, Chocolate.

Side Effects:

Some of our users reported vomiting. However, please be reassured that this wasn’t universal and individual side effects are dependent on the user.

No. 8: Optimum Nutrition’s Creatine 2500 (300 Capsules)

Supplemania Score
8.8out of 10
Percentage of Positive Reviews: 82.0%
Percentage of Neutral Reviews: 6.9%
Percentage of Negative Reviews: 11.1%
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Value
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Optimum Nutrition has been around since 1986, supporting athletes and individuals around the world in their nutrition goals. They have their own production facilities and unparalleled expertise with uncompromised standards of quality too. They state that they can really make a difference to your performance whatever your goals: strength, power, speed or endurance!

Performance Pick

Get peak performance with Optimum

Optimum Nutrition’s Creatine 2500

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Get peak performance with Optimum

Optimum Nutrition’s Creatine 2500

Whatever your goal is, this supplement will help you to achieve it. A professionally made supplement, this product has high-quality ingredients that are perfect for a pre or post workout boost.

This formula is of professional standard made with ingredients of the highest quality. The capsules are made with the same ingredients (creatine monohydrate) as their other creatine products. They are manufactured with rapid disintegration in mind, along with maximum absorption. Each dose of two capsules has 2500mg of creatine monohydrate in the form of the Creapure brand that is 99.9% pure. This is a GMP certified product. ON commit to quality by ensuring that all their ingredient suppliers give Certificates of Analysis with every raw material. There’s also the added verification of random and independent lab testing and in-house testing too. They also employ professionals skilled specifically in quality assurance to make checks routinely on the blending, production, and storage of the products on a daily basis.

Benefits:

These capsules are used to enhance your endurance and energy which helps with muscle building during the loading phase. It can be used as a post-or pre-workout supplement.

Price:

This is one of our cheaper products with 300 capsules for around $24. This works out at about $0.10 per capsule, so $0.20 per dose.

Directions:

To begin you should take between 20 and 25g of creatine monohydrate in a period of 4 to 5 days to saturate the muscles. After this, to maintain creatine levels, you should take 5-7g each day. You should take the capsules (better in divided doses) with a non-acidic, sugary, non-caffeinated drink in intervals which are a few hours apart. Make sure that you store these capsules in a dry and cool place.

Side Effects:

Some users reported a stomach upset after using this product.

No. 9: Muscle Milk Gainer- 32 Servings by Muscle Milk

Supplemania Score
8.5out of 10
Percentage of Positive Reviews: 80.0%
Percentage of Neutral Reviews: 7.0%
Percentage of Negative Reviews: 13.0%
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Effectiveness
Value
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This product is by Muscle Milk and is products that are specially designed for those hard gainers amongst us. It contains 32g of protein and 3g of leucine in every serving of four scoops as well as 650 calories. It can be used as a pre- or post-workout supplement or any time if you want a protein-rich snack or meal option. The way this product works is by combining both slow and fast release proteins to keep the body in a positive balance of protein. You can work out, rebuild by refueling and advance in your muscle building gains.

Magnificent muscle-builder

For hard-core gainers

Muscle Milk Gainer- 32 Servings by Muscle Milk

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For hard-core gainers

Muscle Milk Gainer- 32 Servings by Muscle Milk

This product is a really intense and high protein gain powder for serious gains. It will help you to gain both in strength and size, so is a serious mass gainer product for people who want to make everyday gains.

It’s considered a complete protein which delivers 18 amino acids which are required for human nutrition, including those essential amino acids too. It has a score of 1.0 PFCAAS which is the highest quality any food protein is able to have.

In conjunction with a training program, this protein-rich powder will give you everything you need – all the calories, protein and carbs needed to gain weight and build up lean muscle mass.

It is reviewed fairly frequently at 16, 13 and 20 days for every ten reviews respectfully but there’s only 7 positive for every one negative review, hence its position in our top twelve. It’s Supplemania Score is therefore 8.5.

Benefits:

Using this product will allow you to gain in size as well as in strength. As mentioned, it has everything a mass gainer needs in order to allow the user to progress towards their muscle-building goals.

Price:

It costs around $27 for a 5lb container, making it one of the cheaper choices in our top twelve list.

Directions:

Muscle Milk can be used on many occasions, before working out, after working out or before bedtime. However, the optimal time is after working out as this is the time when your body is primed for repairing and building muscles and replenishing your fuel stores.
To use, if you are someone looking to build your size and gain lean muscle mass you should mix 4 scoops with 16 to 20 fl. oz. of water. For fewer calories, just use 8-10 fluid ounces. Of course, your individual requirements, nutritionally speaking, will vary on your body type and weight, activity levels, gender and the intensity of any training or exercise.

Available in type, size and flavors:

This product is available in three flavors: Cookies ‘N Crème, Vanilla and Chocolate.

Side Effects:

Some of our users reported vomiting. However, please be reassured that this wasn’t universal and individual side effects are dependent on the user.

No. 10: Pro Series MuscleTech Mass Gainer (7 servings)

Supplemania Score
8out of 10
Percentage of Positive Reviews: 81.4%
Percentage of Neutral Reviews: 6.7%
Percentage of Negative Reviews: 11.9%
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Effectiveness
Value
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MuscleTech is a popular brand of supplements aimed to improve diet and fitness. Their products are 100% mass gainer which delivers a whopping 1500 calories if it is mixed with skimmed milk. Its advanced formula will help you if you have difficulty gaining or want to break through a strength or muscle bulking plateau. It contains creatine at a 5mg dose which helps replenish the stores of ATP, aiding performance, building muscle and boosting strength. It also has more Leucine and BCAAs than other weight gain supplements. There’s 60g protein system with multi-phase which gives the user crucial amino acids to aid in quick recovery after you have finished your work out.

Popular brand pick

Improve your fitness fast

Pro Series MuscleTech Mass Gainer (7 servings)

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Improve your fitness fast

Pro Series MuscleTech Mass Gainer (7 servings)

This supplement is from a trusted and popular brand that is known for being experts in fitness and diet improvement. This formula will help your muscles grow, as it is packed with proteins and calories.

Benefits:

As mentioned, this product supports muscle growth due to its advanced formula. It’s full of protein and calories for those struggling to put on the pounds and bulk up.

Price:

This is the most expensive product in our list with a price tag of $55, which works out at $0.70 per ounce for the 5lbs.

Directions:

For one serving, you need to mix six scoops of the powder in either cold water or skimmed milk. It will blend best if prepared in a blender.

Available in type, size and flavors:

There are three different flavors: Chocolate Fudge Brownie, Double Rich Chocolate and Vanilla Ice Cream and in two sizes, 2.2lb size and 5lb size.

Side Effects:

Our users reported some indigestion issues when using this product and they found digestive supplements to be of great help. Please remember that side effects are subjective and are individual to each user.

No. 11: Dymatize Super Mass Gainer 6 lbs, Gourmet Vanilla

Supplemania Score
8out of 10
Percentage of Positive Reviews: 76.0%
Percentage of Neutral Reviews: 6.0%
Percentage of Negative Reviews: 18.0%
User Ratings
Effectiveness
Value
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Dymatize is one of the popular brands in the health and fitness industry. They offer effective, safe and clinically proven supplements for athletes, no matter the sport, and any activity while offering support towards every kind of lifestyle goal. They always strive for bringing innovative and effective product to their consumers.

The brand is growing rapidly and that’s a testament to the company’s commitment and dedication of pursuing their vision and also capturing the effects with its worldwide consumers: not just the pro athletes but the everyday individuals.
This brand have a good rating 4.0 with lots of positive customer reviews. Its positive features have earned it a handsome supplemania score of 8.

Mass Favorite

Clinically Proven and Effective Brand

Dymatize Super Mass Gainer 6 lbs, Gourmet Vanilla

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Clinically Proven and Effective Brand

Dymatize Super Mass Gainer 6 lbs, Gourmet Vanilla

Professional athletes and regular fitness buffs will definitely love how Dymatize is packed with calories and complex carbs that aid in weight gain, muscle building and repairing. It’s an all-around supplement that delivers results.

Benefits:

As we explained, you need a surplus of calories to build muscle. The XL gainer contains 1270 calories per serving as well as 252g of complex carbs. This provides you with sustained energy as you work out. There’s also 50g of muscle-building protein of the highest quality which helps the process of rebuilding muscle as well as gaining weight.

Price:

For 6 lb, you will pay around $24. It’s slightly above average in terms of price; however, you get a lot for your dollar and so it is one of the better value for money supplements in our list.

Directions:

In order to support muscle recovery and growth, you should mix one serving of four scoops with around 18-20fl.oz. cold water. It can be consumed between one and three times a day. You can vary the water quantity to find your desired taste and consistency. If you want to increase your protein, you can use milk instead of water.

Available in type, size and flavors:

There are three flavors and two sizes of this product: vanilla, chocolate milk and chocolate peanut in either 6lb or 12lb sizes.

Side Effects:

Our users reported gas during our test period, which is a mild common side effect.

No. 12: Boost VHC Very High Calorie Complete Nutritional Drink, Very Vanilla (Pack of 27)

Supplemania Score
8.1out of 10
Percentage of Positive Reviews: 87.0%
Percentage of Neutral Reviews: 6.0%
Percentage of Negative Reviews: 7.0%
User Ratings
Effectiveness
Value
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Pretty much everyone’s heard of Nestlé, but did you know that they also create health products? They have special medical nutrition range which includes products designed for metabolic care and also those needing increased calorific intake in liquid form (including, but not limited to, the critically ill, those with swallowing disorders, pediatric care, and food allergies). These supplements can also therefore be used for anyone wishing to have a calorific surplus such as those wanting to bulk up and gain weight.

Complete drink

Nutrition from Nestle

Nestlé Very High Calorie BOOST® (Pack of 27)

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Nutrition from Nestle

Nestlé Very High Calorie BOOST® (Pack of 27)

This supplement comes as a complete drink in a very vanilla flavour. It is described as a complete nutritional drink which will preserve your muscle leanness, whilst helping you to gain weight.

Nestlé Health Science are making breakthroughs in nutrition using biotechnology and genomics as they strongly believe that the food we eat daily is the biggest individual influence on people’s health.

This product is called Boost VHC, meaning Very High Calorie. It’s a complete drink, nutritionally speaking, combining high calories and high protein which will help to preserve your lean muscle mass and allow you to gain weight. For every eight fluid ounces, there’s 530 calories and 22g of protein as well as 26 minerals and vitamins. There’s actually 2.25 calories in every milliliter! It’s suitable for most diets including gluten-free, lactose-free and kosher.

This product has a very good rating. In fact, it’s 4.5 out of 5, which is joint top. However, the reviews are very infrequent. This could be because it is primarily sold as a medical supplement so is therefore not purchased as often, particularly by the gym bunnies amongst us. However, its effectiveness is one of the best! We, therefore, give it 9 as our Supplemania Score!

Benefits:

As mentioned, this product can preserve your lean muscle mass and support you in gaining weight. However, unlike our other products, this product is classed as a medical weight gain supplement rather than just for bulking up. Despite this, it can be used in the same way as other supplements.

Price:

With this product, you get 27 servings for $40. It is one of the most expensive supplements on our list, hence its position here, however, per serving it isn’t too bad at $0.60.

Directions:

With this product, and with all of the supplements in our list, you should follow the dosage instructions as on the label. This is a supplement that’s in liquid form and is best served chilled. It should also be shaken before drinking.

Side Effects:

Some of our users reported a stomach upset with this product. However, again, we remind you that any side effects are subjective to the individual.

A List of Other Products We Tested to Prepare the Best Weight Gain Supplement Reviews

Wrapping it Up

There we have it, our list of Best Weight Gainer Supplement without side effects Reviews are done and dusted! We hope that you have found something that will whet your appetite and suit your needs in the weight gain stakes. We have given you our top weight gain supplements and from that, you can see why so many bodybuilders and athletes use these fantastic supplements.

Let’s face it, if you’re training and trying to gain weight it has so many benefits. Using these products strengthens the immune system and even improves cardiovascular health through its added vitamins, minerals, proteins and carbohydrates. A good supplement also decreases oxidative stress related to aging, reduces cholesterol and also provides detox and cleanse abilities too.

Have you decided capsules or powder? There’s even a ready-made nutritional drink up there too! If you still haven’t decided which then you really can’t go wrong with either of our two picks, either the capsules or the powder. There’s a reason why they’re so popular! We’ve done all the hard work in researching these products for us and, as we have said, you can trust us to get it right so that you don’t need to do so much of the donkey work in researching!

Here at Supplemania, we’re crazy about supplements. We know what we’re talking about! Trust the Supplemania Scores and you won’t go wrong. You’ll be gaining weight and building lean muscle in no time at all with our reviews and buyer’s guides. Do let us know how you get on! We’d love to hear all about it and see your progress pictures!