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The Best Weight Gainers to Consider

Top 10 Best Selling Weight Gain Products Examined

We have put together a list of the best weight gain supplements you should consider checking out.

1. Transparent Labs ProteinSeries MASS GAINER

Transparent Labs Proteinseries Mass Gainer

Manufacturer: Transparent Labs

Main Ingredients    (750 Calories per serving)

  • 12g total fats
  • 109g total carbohydrates (organic tapioca Maltodextrin)
  • 53g protein (New Zealand whey protein
  • 110mg cholesterol
  • 560mg sodium
  • 8g dietary powder
  • 15g sugar
  • 25mg potassium
  • 10% vitamin A
  • 20% calcium
  • 15% iron
  • 4% phosphorus

Secondary Ingredients

  • 65 g coconut powder
  • 3g natural chocolate flavor
  • 6g cocoa
  • 71 medium chain triglycerides
  • 3g VitaFiber
  • 3g creatinine monohydrate
  • 2g sodium chloride
  • 1g oat flour
  • 1g sweet potato powder
  • 200mg stevia
  • 200mg monk fruit

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2. Optimum Nutrition Pro Gainer

Optimum Nutrition Pro Gainer

Manufacturer: Optimum Nutrition

Main Ingredients

  • 8g Total Fats
  • 60g Proteins
  • 85g Total Carbohydrates
  • 60mg Cholesterol
  • 340mg Sodium

Secondary Ingredients

  • Cocoa
  • Lipid Blend
  • Partially Hydrolyzed Guar Gum
  • Natural and Artificial Flavors
  • Lecithin
  • Vitamin/Mineral Blend
  • Dimagnesium Phosphate
  • Calcium Carbonate
  • Tricalcium Phosphate
  • Thiamin
  • Riboflavin
  • Niacinamide
  • Folic Acid
  • Biotin
  • Potassium Iodide

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3. Universal Nutrition Real Gains

Universal Nutrition Real Gains

Manufacturer: Universal Nutrition

Main Ingredients

  • 6g Total fats
  • 53g Protein
  • 84g Total Carbohydrates
  • 97mg Cholesterol
  • 277mg Sodium
  • 708mg Potassium
  • 5g Dietary Fibers
  • 7g Sugar
  • 316mg Calcium
  • 2mg Iron

Secondary Ingredients

  • Dutch Processed Cocoa
  • Inulin
  • Flaxseed Oil
  • Medium Chain Triglycerides (MCT)
  • Calcium Caseinate
  • Chocolate Flavor
  • Natural and Artificial Flavors
  • Acesulfame Potassium
  • Sucralose
  • Sodium Chloride

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4. BSN True Mass 1200

Bsn True Mass 1200

Manufacturer: BSN

Main Ingredients

  • 16g Total fats
  • 222g Total Carbohydrates
  • 50g Proteins
  • 23g Essential Amino Acids
  • 12g BCAAs
  • 16g Dietary Powder
  • 150mg Cholesterol
  • 530mg Sodium
  • 50% Iron
  • 40% Calcium

Secondary Ingredients

  • Sunflower Oil
  • Corn Syrup Solids
  • Sodium Caseinate
  • Monoglycerides
  • Diglycerides
  • Dipotassium Phosphate
  • Tricalcium Phosphate
  • Lecithin
  • Tocopherols
  • Cocoa
  • Natural & Artificial Flavors
  • Polydextrose
  • Gum Blend
  • MCT Powder
  • Non-Fat Dry Milk
  • Disodium Phosphate
  • Silicon Dioxide
  • Vanillin
  • Acesulfame Potassium
  • Sucralose

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5. Dymatize Super Mass Gainer

Dymatize Super Mass Gainer

Manufacturer: Dymatize

Main Ingredients (1280 calories per serving; total servings 8+)

  1. 10g Total Fats
  2. 252g Total Carbohydrates
  3. 52g Total Protein
  4. 19g Sugars
  5. 70mg Vitamin C
  6. 4150IU Vitamin A
  7. 210IU Vitamin D
  8. 1g Creatine Monohydrate
  9. 2g Proprietary Amino Acid Blend
  10. 250mg Zytrix

Secondary Ingredients

  • Fructose
  • Quick Creamer
  • Natural & Artificial Flavors
  • Dymatize Vitamin and Mineral Blend (Super Mass Gainer)
  • Silicon Dioxide
  • Acesulfame Potassium
  • Red#40

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6. Optimum Nutrition Serious Mass

Optimum Nutrition Serious Mass

Manufacturer: Optimum Nutrition

Main Ingredients

  • 5g Total Fats
  • 252g Total Carbohydrates
  • 50g Protein
  • 75mg Cholesterol
  • 40g Sugars
  • 60mg Vitamin C
  • U. Vitamin E
  • 50mg Niacin
  • 400mcg Folic Acid
  • 100mg Panthothenic Acid
  • 730mg Calcium
  • 600mg Sodium
  • 1230mg Potassium
  • 500mg L-Glutamine

Secondary Ingredients

  • Serious Mass Vitamin and Mineral Blend
  • Medium Chain Triglycerides
  • Creatine Monohydrate
  • Acesulfame Potassium
  • Artificial Flavors

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7. Nature’s Best Isopure Mass

Natures Best Isopure Mass

Manufacturer: Nature’s Best

Main Ingredients

  • 5g Total Fat
  • 86g Total Carbohydrates
  • 53hg Protein
  • 10mg Cholesterol
  • 420mg Sodium
  • 980mg Potassium
  • 4g Dietary Fiber
  • 3g Sugars

 Secondary Ingredients

  • Thiamin
  • Riboflavin
  • Niacin
  • Calcium
  • Iron
  • Phosphorus
  • Iodine
  • Magnesium
  • Zinc
  • Selenium
  • Copper
  • Manganese
  • Chromium
  • Molybdenum
  • Chloride

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8. MHP Up Your Mass

Mhp Up Your Mass

Manufacturer: Maximum Human Performance

Main Ingredients

  • 11g Total Fats
  • 58g Total Carbohydrates
  • 46g Protein
  • 2mg Cholesterol
  • 435mg Sodium
  • 5g Sugars

Secondary Ingredients

  • 60% Vitamin A
  • 60% Vitamin C
  • 60% Vitamin D
  • 60% Vitamin E
  • 60% Niacin
  • 60% Riboflavin
  • 60% Thiamine
  • 60% Folic Acid
  • 60% Vitamin B12
  • 102% Phosphorus
  • Banana Leaf Extract
  • Sucralose
  • Vitamin Pre-Mix
  • Salt
  • Acesulfame Potassium
  • Silica
  • Gum Blend
  • Flaxseed Powder
  • Lipid Complex (MCT)
  • Natural & Artificial Flavors
  • Silicon Dioxide
  • Lecithin
  • Safflower Oil Creamer
  • Dipotassium Phosphate

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9. Arnold Schwarzenegger Series Iron Mass

Arnold Schwarzenegger Series Iron Mass

Manufacturer: MusclePharm

Main Ingredients:

  • 21g Total Fats
  • 34g Total Carbohydrates
  • 40g Protein
  • 2mg Cholesterol
  • 240mg Sodium
  • 550mg Potassium
  • 1g Dietary Fiber
  • 4g Sugars
  • 71500mg Iron Mass Proprietary Blend
  • Muscle Plasma Protein Mix
  • High Performance Healthy Fats Matrix
  • Performance Growth & Muscle Volumizer
  • Pro-Digest Blend

Secondary Ingredients:

  • Natural & Artificial Flavors
  • Glucose Polymers
  • Cocoa Powders
  • Acesulfame Potassium
  • Sucralose

10. CytoSport Monster Milk

Cytosport Monster Milk

Manufacturer: CytoSport

Main Ingredients

  • 5g Total Fats
  • 9g Total Carbohydrates
  • 50g Protein
  • 45mg Cholesterol
  • 2g Dietary Fibers
  • 4g Sugars
  • 160 mg Sodium
  • 500 mg Potassium
  • 30mcg Vitamin B12
  • 4mg Vitamin B6
  • 500mg Calcium
  • 120mcg Chromium
  • 600 mg Phosphorus
  • 4g L-Glutamine
  • 4g L-Leucine
  • 1g Leucine-Enriched Whey Peptide
  • 3g Creatine Monohydrate
  • 2mg Thiamine
  • 2mg Riboflavin
  • 20mg Niacin
  • 250mg Aminogen®

Secondary Ingredients

  • Monster Milk Protein Blend Sustained Release
  • Monster Milk Rapid Release Protein Blend
  • Lean Lipids
  • Natural & Artificial Flavors
  • Soluble Corn Fiber
  • Soy Lecithin
  • Stevia (Rebiana)
  • Sucralose
  • Guar Gum
  • Xanthan Gum
  • Acesulfame Potassium
  • Potassium Chloride
  • Fructo-Oligosaccharides
  • Maltodextrin

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What Are Weight Gainers?

Like protein powders, weight gainers deliver easily digestible protein, but they also contain carbs and sugars that usually provide around 700 – 1,000 calories or more per serving.

Most weight gainers come in a powdered form that’s designed to blend with liquids to create a shake that’s easy to drink. However, some weight gainers can also be found in pill form.

Common Ingredients of Weight Gainers

Like all supplements, weight gainers vary in their ingredients and proportions, and manufacturers often promote their signature proprietary formulas and special ingredients.
Consumers should, however, be wary of extraordinary claims or ingredients that they aren’t familiar with or when they don’t understand what effects the ingredients might produce.
Our weight gainer is accompanied with a fully transparent ingredient breakdown as well as information on what each ingredient is and does within the body.
The most common ingredients of weight gainers include:


The protein component of weight gainers can come from many sources including wheymilk protein isolatewhey isolate, egg albumen, calcium caseinate and whole egg powder. The biological value of protein, or BV, describes how easily protein components are absorbed into the bloodstream where they can be used to provide energy and build muscle.


Carbohydrates can spike insulin levels, but unlike with sugar consumption, the process is safer, more controlled and beneficial for building muscle and gaining weight safely. According to the fact sheets on supplements, consuming carbohydrates is a safer way to gain weight for those people who are looking to do so.

Carbs can also cause unwanted weight gain, but it’s a great solution for those who really need to or are looking to gain weight, build muscle or maximize athletic performance. The U.S. military generally supports consuming more carbs for those recruits who are trying to gain weight and muscle fast.


The natural amino acid creatine, which is found in meat and fish, is also produced in the human body. Bodybuilders and health advocates spend millions of dollars annually on creatine supplements, which numerous studies and tests have shown to improve athletic performance and increase muscle mass when used properly in conjunction with bodybuilding, exercising and strength training.


L-glutamine, another critical amino acid, speeds muscle recovery after a hard workout. The compound also helps to fight diseases and strengthen the immune system. Important university research and trials show that glutamine helps to remove excess ammonia in the body that builds up after exercise.

Although this amino acid is the most common in the body, high levels of stress can cause the release of cortisol, which reduces glutamine levels. Ensuring enough of the acid after a workout generates faster recovery rates and helps people to stay hydrated in addition to glutamine’s long-term benefits of strengthening immunity and aiding brain activity and digestion.


Too much sugar can prove dangerous because it can trigger an insulin spike. According to newly drafted guidelines of the World Health Organization, even athletes should get no more than 10 percent of their calories from sugar, which translates to about 25 grams for an average adult.

Too much sugar can trigger adult onset diabetes, insulin resistance, liver failure, kidney disease and high blood pressure. It’s safest to avoid too much glucose and fructose in health gainers; the protein, carbs and beneficial amino acids can encourage enough muscle-building weight gain to satisfy most supplement users.That’s healthier and safer than consuming supplements that contain excessive amounts of sugar.

Fiber and Digestive Aids

Supplements aren’t designed to replace eating healthy food, but for some people who can’t consume enough calories to fuel their high rates of metabolism, weight gainers can prove extraordinarily useful.

However, getting calories from supplements creates another potential risk that healthy nutrition would normally prevent–digestive distress caused by lack of fiber in the diet. Harvard nutritional studies show that getting more protein and fiber in the diet improves body composition, satisfies hunger more effectively and generates a higher thermic effect from the combustion of nutrients.

That’s why fiber and protein are prime ingredients for weight gainers for people who don’t eat enough. The fiber might not be as essential for those who already eat a full diet.

Primarily used by athletes and bodybuilders, weight gainers can be used by anyone who wants to gain weight. This includes people who are recovering from health-related weight loss, those with high metabolic rates and thin people who just want to put on a few pounds.

Safety Considerations of Using Any Dietary Supplements

Regardless of a supplement’s formulation, all supplements carry the risks of side effects, interactions with prescription and over-the-counter medications, as well as unethical practices such as fraudulent health claims by manufacturers and distributors and adulterated formulations.

Unlike drugs, supplements aren’t regulated as thoroughly by the FDA. That doesn’t mean dietary supplements can’t and don’t carry any health risks when used irresponsibly. A Class I recall by the FDA was ordered for 237 dietary supplements between January of 2004 and December of 2012 because of the risk that these formulations could cause or exacerbate serious health issues.

Most recalls were and are for weight-loss supplements and products that contain ingredients that the FDA classifies as drugs. That’s why it’s so important for supplement users to research the ingredients of any supplement formula and check with their doctors and pharmacists before beginning a supplementation regimen.

Weight gainers seldom generate health risks when used as directed for moderate weight gain, but the altered behavior that supplementation could facilitate—such as longer workouts and increased weight gain—could pose health risks for some people.

How Weight Gainers Work

The science of gaining or losing weight isn’t difficult to understand–simple math and science determine whether a person gains or loses weight. Calories are units of thermal energy, and food (or supplements) are metabolized to generate this energy. One gram of a given substance, however, varies in how many calories it can generate. For example, one gram of protein generates four calories of energy. One gram of fat generates nine calories.

Each person burns a different number of calories based on his or her weight, metabolic rate, height, activity level and other factors. The basal metabolic rate, or BMR, is the sum of the energy needs of all bodily functions. This figure also varies based on the level of activity that each person maintains throughout the day. It takes 3,500 calories to gain (or lose) one pound of body weight. That means adding 500 calories per day to gain one pound per week if the BMR needs are otherwise met with normal eating habits.

Weight gainers usually contain highly digestible protein, carbs and nutrients that get into the blood quickly. Mixed with water or other liquids, the powdered form is easy to absorb. However, blending the powder well is critical to prevent lumps that could remain in the digestive tract for long periods.

Once these nutrients are in the blood, they’re available to fuel energy during a workout, break down and rebuild muscle and help athletes to recover after their workouts or exercise for longer periods than they could without supplement-enhanced energy.

Benefits of Weight Gainers

The benefits of taking weight gainer supplements depend on why each person wants to gain weight. Most nutritional, medical, scientific and university studies agree on one issue–the safest method of gaining weight is to do so gradually by increasing caloric intake naturally with increased food consumption.

However, that doesn’t always work for athletes who need to build strength in a hurry, people with high metabolic rates and those who can’t seem to eat enough to gain weight.

The benefits of taking weight gainers–according to most users–include:

  • Meeting normal or extreme daily calorie requirements
  • Getting essential nutrients for extreme athletic and bodybuilding workouts
  • Managing different caloric needs to build muscle more effectively
  • (on and off days are generally thought to be more effective for building muscle)
  • Gaining weight from muscle while appearing leaner and more fit
  • Recovering more quickly after workouts
  • Getting access to different flavors and varieties to change up the daily workout routine
  • Fostering better internal health by taking supplements with added fiber and essential vitamins and minerals

Who Can Benefit from Mass Gainers?

Mass gaining supplements work best for those people who require high-calorie diets to fuel workouts, gain muscle or recover weight lost during an illness. Those who participate in bodybuilding competitions are the most common users of weight gainers, but anyone who needs to gain weight could be a good candidate for taking weight gainer supplements.

It’s important to study the ingredients and see if they match any user’s weight-gaining goals. The ingredient mixture should be researched for possible interactions with medications or existing health disorders.

Athletes who want to build muscle, increase their workout stamina, recover faster after exercise or shape their bodies could find the right weight gainer supplement a great resource for meeting their fitness or weight goals. However, it’s important to remember that these weight gainers are dietary supplements and not replacements for sound nutrition and work hand in hand with consistent exercise.

Metabolism, body type, and genetics play major roles in gaining and losing weight. Gaining weight can be hard for some people–just as hard as losing it is for most people. Genetics, small builds and active lifestyles make it hard for some people to eat enough to gain weight. Weight gainers can be extremely helpful for those people who just can’t otherwise gain weight.

In many sports, fast weight gain (or loss) can be critical for qualifying for certain weight classes; fore example in wrestling, boxing, martial arts and other combat sports. Taking weight gainers for a few days can help certain athletes qualify for a higher weight class, which could be strategically desirable for the team or individual.

Regardless of the reason for taking a weight gainer supplement, people should always consult their physicians before trying to gain weight for any reason. Supplement formulas could interact negatively with medicines, trigger allergic reactions or exacerbate certain medical conditions. Gaining weight could also trigger other health issues such as high blood pressure, obesity, cardiovascular disease, diabetes and other conditions.

How to Use Weight Gainers

Weight gainers come in flavored powders and pills, but mixing a shake is the easiest way to get fast results. Athletes can use weight gainers–along with adequate nutrition–to trigger muscle-building efforts and increase stamina and endurance.

Drinking a shake prior to a workout helps to ensure an adequate supply of nutrients for tearing down and rebuilding muscle. Depending on a given supplement’s unique formula, taking a weight gainer shake before or after a workout can help athletes recover more quickly, exercise for longer periods and gain lean muscle while losing fat.

It’s important to consult a trainer, coach or physician before using a mass gainer product. Find out what’s in each supplement before trying it. Mixing the product with milk works well because milk adds healthful ingredients while preventing stomach upsets in most people. Determining how many scoops to add depends on each person’s weight-gaining goals and training strategy.

Those who just want to gain weight usually take their weight gainers as snacks between meals. This approach ensures that a supplement’s users get adequate nutrients without feeling full or bloated.

Things to Consider When Buying

Most people who want to gain weight choose weight gainers because they can’t or won’t gain the desired weight through food consumption. Some people don’t like eating excessively, and flavor is a critical factor for most consumers when choosing what they eat. The same holds true for weight gainer shakes, which are the most popular form of weight gainer supplements. Taste, flavor, ingredients and brand reputation ranks as the top criteria when considering whether to buy a weight gainer product.

Unfortunately, weight gainers aren’t a panacea for health and fitness, but they do provide a fast, convenient and affordable way to gain weight and build muscle. However, it’s critical to investigate any supplement before buying it. That includes researching the manufacturer, brand reputation, ingredients and other details.

An excellent resource for researching ingredients is the NCCIH Clearinghouse for publications and databases. Consumers can find out information about ingredients, manufacturers, supplement formulas and medical and scientific studies.

Reputation of the Brand

A PBS report on supplements recommends that users ask some complex questions before deciding to take any kind of supplement. The multi-billion dollar supplement industry obviously serves a real need, or it wouldn’t have grown so rapidly. Supplements have become common staples of major brick-and-mortar and online retailers such as Walmart, Target Walgreens and others.

PBS recommends that consumers search each manufacturer’s website and check whether a given supplement has generated any online complaints, healthy warnings, recalls or sanctions. Read any relevant user reviews, and find out if the supplement has been tested by any independent laboratories.

Brand reputation matters because it shows that a company is trusted by other people who are using its products. Testimonials, reviews, complaints, how a company responds to complaints and a brand’s industry reputation can be critical factors in choosing weight gainer supplements intelligently.

Personal Preferences

Pills might be easier for some supplement users, but most people prefer to customize their shakes with their favorite flavors and liquids. Taste and flavor are critical for many people, so it’s highly recommended that consumers try any supplement in the smallest available quantity before buying a larger amount. If the shakes aren’t enjoyable, people will find excuses not to drink them or perform the exercise necessary to build muscle.


The cost of supplements aren’t always easy to determine. It’s important to compare prices based on serving size and the number of grams of each component. The cheapest product might not provide the best value when broken down into servings.

What to Avoid

Supplements aren’t considered to be drugs by the FDA, so choosing dietary supplements that promise to cure, diagnose, treat or mitigate diseases and disorders is risky according to research conducted at Oregon State. So it’s best to avoid products that make exaggerated promises or health guarantees.

Supplements that use protein, carbs and nutrients from unknown sources are another red flag for consumers. It’s important to check the biological value of protein to determine how easily it’s absorbed and used by the body. Too much sugar–in the form of glucose, dextrose, sucrose and fructose–can also generate the risks of raising insulin and serotonin levels.

Too much serotonin can cause headaches, drowsiness and other unwanted side effects. These problems include goose bumps, fatigue, dizziness, agitation, shivering, sweating and dilated pupils.


Trying to gain weight or muscle too quickly can generate undesired side effects. These include unfavorable distribution of weight, added pressure on the cardiovascular system, developing high blood pressure or diabetes and experiencing severe cramps. Depending on the formula of a given weight gainer supplement, it’s possible to develop nutritional deficiencies.

Too much creatine can also cause unwanted side effects that include kidney problems, and impairing heart or liver function. High doses can also draw water away from the rest of the body, so users of creatine-enhanced supplements should drink lots of water. Creatine in the blood is a primary indicator of reduced kidney function, and excessive creatine can cause diarrhea, stomach pains, nausea and muscle cramps.

Allergic reactions are always possible when taking weight gainers. Many formulas contain soy and soy products, herbal supplements, dairy products and other common allergens. Discontinue any product that causes breathing problems, digestive upset, diarrhea, hives or other kinds of health problems.


Using weight gainers properly offers many benefits for putting on weight without eating excessively, building muscle and recovering from debilitating medical conditions. Bodybuilders and health enthusiasts can use weight gainers as part of their strategy to accelerate and intensify their efforts to recuperate or build muscle at a higher level of intensity.

People can recover faster from fitness workouts–of all types–with those weight gainers that incorporate ingredients that foster faster recovery rates. These are ideal choices for high-intensity training and extremely competitive athletics.

It’s important to know what kind of weight-gaining supplement best suits anyone’s goals–whether the goal is weight gain, feeding a high metabolic rate, recovering more quickly after working out or building muscle mass. The best strategy is to consult with trainers and the family physician, research supplement brands and ingredients and make an informed decision.

The right information can guide any research effort, and knowing the pros and cons of different types of weight gainers can prevent spending too much money or using supplements with nonessential or risky ingredients.

Attention: This content has not been written, reviewed or endorsed by a medical professional and may not be used to diagnose or treat any medical conditions. does not assume liability for any actions undertaken after reading this information, and does not assume liability if one misuses supplements featured on this website. You should always speak with your doctor before taking any supplements mentioned on this website. You must read and follow the label instructions of any product you purchase.

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