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People sometimes use supplements to help increase their muscle mass. This type of supplement is called a mass gainer. It helps people get the extra calories they need to build muscle.

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Please note, the writer has not tested these products. All information is research-based.

Intense physical training often requires a person to consume more food so that they can get additional nutrients. Using a supplement that contains extra protein and carbohydrates is a convenient way to get more calories into the diet.

People often take mass gainers as a shake-style drink. Mass gainers contain varying amounts of macronutrients. They sometimes also contain other ingredients, such as vitamins, minerals, and creatine.

People can choose products with fewer calories if their focus is on gaining lean muscle, rather than weight.

This article looks at different supplements for building muscle mass and their nutritional contents.

Many different mass gainers are available on the market. We look at five good options below:

Chocolate Less Naked Mass

Best for natural ingredients

Naked Nutrition mass gainers contain only five ingredients:

  1. grass-fed whey
  2. casein
  3. organic coconut sugar
  4. organic tapioca maltodextrin
  5. organic cacao powder

Naked Nutrition says that its processing involves neither acid nor bleach, and that the product contains no:

  • hormones
  • gluten
  • artificial sweeteners
  • artificial flavors and colors
  • genetically modified ingredients
  • soy

Customers observe that the product tastes less sweet than some other mass gainers due to the natural cacao and lack of sweeteners.

Nutritional profile

Per serving, which is 4 scoops, or 333 grams (g), the Less Naked Mass powder in chocolate contains:

  • 1,360 calories
  • 50 g protein and 11.6 g BCAAs
  • 251 g total carbohydrates

Each serving also gives someone 52% of their daily value of magnesium and 43% of their daily value of calcium, though these values are based on a diet with 2,000 calories per day.


The organic ingredients in Less Naked Mass may appeal to people who wish to avoid artificial ingredients or are sensitive to gluten.

However, anecdotal evidence suggests that many people trying to build muscle aim for a 1:2 or 1:4 ratio of protein to carbohydrates. As a result, this product may contain too many carbohydrates for some people.

  • Price: Around $65
  • Price per serving: Around $6 per serving
  • Protein source: Whey and micellar casein
  • Carb source: Organic tapioca maltodextrin
  • Sugar source: Organic coconut sugar

Optimum Nutrition Serious Mass

Best for extra vitamins and minerals

This product may appeal to people who want to gain weight and add essential vitamins and minerals to their diets. The protein-to-carbohydrate ratio is 1:5, so it may not suit people who want more protein and fewer calories.

Nutritional profile

The nutritional profile per 2-scoop serving, which equates to 334 g, is as follows:

  • 1,250 calories
  • 50 g protein
  • 250 g carbohydrates
  • creatine, glutamine, and glutamic acid
  • 25 vitamins and essential minerals


This product has a good range of vitamins and minerals, which add nutritional value. It is available in five flavors.

But as it contains egg, wheat, and soy, it may not be suitable for people with vegan diets or some intolerances.

  • Price: Around $50.
  • Price per serving: Around $3 per serving
  • Protein source: Whey protein concentrate, calcium caseinate, egg white, and sweet whey
  • Carb source: Maltodextrin
  • Sugar source: Sucralose

Transparent Labs Mass Gainer

Best for natural complex carbohydrates

The whey protein concentrate in this mass gainer is 100% grass-fed, and the carbohydrates include organic oats, tapioca, and sweet potato. The product also contains creatine monohydrate and natural sweeteners. It comes in two flavors.

Nutritional profile

Per 2-scoop serving, or 196.76 g, this product provides:

  • 790 calories
  • 53 g protein
  • 114 g total carbohydrates
  • 10% of the daily value of potassium and 30% of the daily value of calcium, based on a 2,000-calorie daily diet


Transparent Labs brands itself as being transparent about what goes into its products. Its supplements contain premium, chemical-free ingredients, and the slightly higher price reflects this quality, the company says.

  • Price: Around $70
  • Price per serving: Around $5 per serving
  • Protein source: Whey concentrate and creatine monohydrate
  • Carb source: Organic tapioca maltodextrin
  • Sugar source: Stevia

Vegan Naked Mass

Best for vegans

This product combines pea and rice protein with organic tapioca maltodextrin, so it may be suitable for people with plant-based diets.

Nutritional profile

To ensure a complete amino acid profile, the ratio of pea-to-rice protein is 2:1. Per 4-scoop serving, which is 315 g, the supplement contains:

  • 1,230 calories
  • 50 g protein
  • 248 g total carbohydrates
  • four essential minerals


This product is suitable for vegans looking to gain weight and muscle, and it compares well with other mass gainers on the market. It is also free from gluten, soy, and genetically modified organisms, better known as GMOs.

  • Price: Around $60
  • Price per serving: Around $5 per serving
  • Protein source: Yellow pea protein and organic brown rice protein
  • Carb source: Organic tapioca maltodextrin

True-Mass 1200

Best for medium chain triglycerides and BCAAs

True-Mass 1200 features a 4:1 ratio of carbohydrates to protein and also contains healthful fats.

Nutritional profile

Per 2-scoop serving, or 320 g, this supplement provides:

  • 1,271 calories
  • 53 g protein
  • 216 g total carbohydrates
  • calcium


True-Mass 1200 is a popular product with good reviews, though some are concerned by the long list of added ingredients.

  • Price: Around $60
  • Price per serving: Around $4 per serving
  • Protein source: Whey protein concentrate, calcium caseinate, milk protein isolate, whey protein isolate, micellar casein, egg albumin, hydrolyzed whey protein, and glutamine peptides
  • Carb source: Maltodextrin and whole oat flour
  • Sugar source: Sucralose

People who are intolerant to certain foods may find that mass gainers upset their stomachs. Anyone who is trying them for the first time should start with a smaller amount and increase it gradually.

If a person consumes mass gainer supplements without working out regularly, they are likely to gain fat, rather than muscle. Therefore, some people may benefit more from simply increasing the amount of lean protein in their diets.

The Food and Drug Administration (FDA) does not regulate mass gainer products, so it can be difficult to tell whether a product actually contains what is on its label.

However, people who require extra protein and calories to build muscle during periods of intense training may find mass gainers helpful. A person may choose a product based on its ingredients, taste, and value for money.

Once a person has settled on a supplement, they can change the taste, texture, and nutritional content of their shake by adding ingredients such as nut butters, fruit, or oatmeal.