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We’re often bombarded by weight-loss messaging in the media, but there are many reasons why people may need to gain weight. Mass gainers are a popular way to build lean muscle among fitness enthusiasts and are also used to prevent malnutrition in people who struggle to eat enough to maintain a healthy weight. 

The Naked Nutrition Naked Mass mass gainer is a popular product thanks to its simple ingredient list, but you may not be sure whether it’s right for you. That’s where the experts at GGR come in! 

We’ve tested the product ourselves so you don’t have to! Keep reading our Naked Nutrition Naked Mass review for our honest opinion on this mass gainer.

Medical disclaimer: This article is intended for educational and informational purposes only. It is not intended as a substitute for medical advice. For health advice, contact a licensed healthcare provider. GGR also recommends choosing a product that has been third-party tested for quality.

We’re Experts in Healthy Weight Gain

There are a million ways to gain weight, but not all of them will help you meet your health and fitness goals. 

Our expert team of competitive weightlifting coaches, registered dietitians, nutrition coaches, and certified personal trainers know exactly how to support healthy weight gain to optimize performance, physical function, and overall health. 

Jacob Penner, USAW-2 and competitive weightlifter, knows a thing or two about building lean mass to improve exercise performance and used his practical experience in the field to test Naked Nutrition Naked Mass for us. He rated the product on a scale of 1 to 5 for a variety of categories, including:

  • Price per serving
  • Formulation
  • Taste
  • Solubility
  • Third-party testing
  • Customer reviews

RELATED: How to Gain Weight Fast

Naked Mass

Naked Nutrition Mass

GGR Score: 3.8 starstarstarstarstar

Product Highlights

  • 1,250 calories per serving
  • 252 g carb, 2.5 g fat, 50 g protein in every serving
  • Just 3 ingredients
  • Gluten-free, soy-free, non-GMO

Pros & Cons


  • 5:1 carb-to-protein ratio
  • Just 3 ingredients: whey, casein, organic maltodextrin
  • No artificial additives
  • No growth hormones
  • No added sugars
  • Soy-free, gluten-free, non-GMO
  • Vegan option available


  • $6.36/serving is expensive
  • Does not contain creatine

Bottom Line

Naked Nutrition Mass is a three-ingredient mass gainer suitable for those seeking a high carb-to-protein ratio. There are no artificial ingredients. There is also no creatine, so you will have to add your own.

A Quick Look at Naked Nutrition Naked Mass

Naked Nutrition is known for its simple, artificial additive-free nutrition supplement formulations. Their Naked Mass weight gainer is no different, made only with three simple ingredients: organic tapioca maltodextrin, whey protein concentrate, and micellar casein.

Naked Mass is marketed as a convenient way to fuel workouts, meet increased calorie demands for weight gain, build lean muscle, and enhance muscle recovery after a workout.

Before You Buy

  • Avoid taking this before a workout if you can’t exercise on a full stomach.
  • We found it’s best when used in a smoothie rather than mixed only with milk or water.
  • Vegan Naked Mass made from pea protein and brown rice protein is also available.

Is Naked Mass Worth It?

If you struggle to get enough calories to gain weight or build lean muscle despite eating a balanced diet, Naked Mass could be a helpful product thanks to its calorie- and protein-packed formula. 

It’s non-GMO, soy-free, certified gluten-free, and free from unnecessary additives and artificial ingredients, making it appropriate for many dietary preferences.

A woman is shown sitting on a weight bench, about to pour a comically large scoop of Naked Nutrition Naked Mass gainer into a reasonably sized shaker glass.

Naked Mass is effective but expensive, meaning the potential benefits may not outweigh the price depending on your budget. Of course, if you need to gain weight for medical reasons, it’s difficult to place a price on your health.

RELATED: DIY Mass Gainer

Great for:

  • Hard gainers looking for a supplement to help them gain weight and build muscle
  • People who need to prevent unintentional weight loss related to poor appetite or medical conditions
  • Those looking for a mass gainer without fillers or artificial ingredients

Not recommended for:

  • People with health conditions requiring them to limit foods with a high glycemic index
  • Those wanting a mass gainer with pre-workout ingredients like creatine
  • Those who can meet their increased calorie and protein needs for weight gain through whole foods and conventional protein supplements

RELATED: Best Protein Powder for Weight Gain

Naked Mass Specs

Price per serving$6.36
Serving size4 scoops (321 g)
FlavorsUnflavored, Chocolate, Vanilla, Chocolate Peanut Butter, Double Chocolate
Calories per serving1,250
Carbs per serving252 g
Protein per serving50 g
Fat per serving 2.5 g
Third-party tested?Yes

Experience Using Naked Mass

When asked his thoughts on the product, Jacob told us he “liked this mass gainer, but it wouldn’t be my first choice—mostly because the only way for me to consume it is to make a huge blender shake, which is time-consuming.”

A woman holds up a shaker glass of water and mixes in some Naked Nutrition Naked Mass gainer.

That said, he liked the simple ingredients and was impressed with “how they list out the aminos in the protein profile.” 

Price Per Serving

At $6.36 a serving, this is one of the priciest mass gainers we’ve encountered. It’s an effective product with high-quality ingredients, but the astronomical price point makes it unaffordable for many.

Similar products exist at lower price points, so we had to give Naked Mass a 1 out of 5 rating for price.


Unflavored Naked Mass contains only tapioca maltodextrin, grass-fed whey protein concentrate, and micellar casein protein, offering 50 total grams of protein and 11.5 grams of BCAAs.

RELATED: What Is Casein Protein?

Whey protein is quick-digesting and optimal for supporting muscle growth soon after a workout, while slow-digesting casein assists with muscle recovery over a longer period of time.

Maltodextrin is the primary source of calories and carbohydrates in this gainer, providing a whopping 252 grams of carbs per serving. While technically a complex carbohydrate, maltodextrin is highly processed and has a high glycemic index thanks to its low dietary fiber content.

The Supplement Facts label on a canister of Naked Nutrition Naked Mass gainer.

This is helpful for weight gain, but may not be appropriate for people with health conditions which require them to prevent excessive spikes in blood sugar. 

Note that other flavors contain additional ingredients like organic coconut sugar or cacao powder.

Overall, we were pretty impressed with the simple formulation of this weight gainer, rating it a 4 out of 5.

RELATED: Best Supplements for Muscle Growth

Taste and Solubility 

Jacob wasn’t a big fan of this mass gainer on its own. He felt that “it’s not good mixed with milk—it tastes like I’m drinking heavy cream.” He preferred it mixed with water but still didn’t enjoy the flavor.

However, adding it to a smoothie was a game-changer. “I mix it with half a banana, 12 ounces of milk, peanut butter, and cocoa powder and it’s incredibly delicious. You can’t tell there is mass gainer in there,” he noted.

Jacob noticed that it blended perfectly in smoothies, but was “a bit gritty and really foamy” when mixed with water alone.

Overall, we rated Naked Mass a 4 out of 5 for both flavor and solubility.

Side Effects

Mass gainers make it easy to consume up to 1,000 calories or more at a time, which can result in gastrointestinal side effects for some people. These effects can be even worse in people with lactose intolerance.

A woman is taking the lid off of a freshly mixed shake made from Naked Nutrition Naked Mass gainer.

Fortunately, Jacob didn’t notice any unpleasant side effects when using Naked Mass, likely due in part to its low fat content. We gave it a 5 out of 5 rating in this category.

RELATED: Mass Gainer Pros and Cons

Third-Party Testing 

Naked Mass is Informed Choice certified, meaning that product batches are blind-tested monthly for contaminants like heavy metals and stimulants.

Since the FDA doesn’t regulate dietary supplements, choosing a third-party-tested product is a great way to ensure that what you’re consuming is safe.

Informed Choice is a highly respected certification, earning Naked Mass a 5 out of 5 rating here.

Naked Nutrition Naked Mass vs Transparent Labs Mass Gainer 

Transparent Labs Mass Gainer

Transparent Labs Mass Gainer

GGR Score: 4.5 starstarstarstarstar

Product Highlights

  • 760 calories per serving
  • Each serving provides 53 grams of protein, 13 grams of fat, and 109 grams of carbs
  • Formulated to support lean muscle mass 
  • Carbohydrates are derived from tapioca, oat, and sweet potato sources
  • Available in Sweet Vanilla and Chocolate Donut flavors
  • Sweetened with Stevia and monk fruit

Pros & Cons


  • Contains creatine monohydrate
  • Free from artificial ingredients
  • Derived from nature-based sources
  • No added sugar
  • Gluten-free and non-GMO
  • Completely transparent list of ingredients
  • Taste


  • High saturated fat count
  • Expensive
  • Shipping takes a long time
  • 1:2 ratio of protein to carb may not be enough for some

Bottom Line

Transparent Labs Mass Gainer is one of the more expensive mass gainer supplements, but it offers high-quality, naturally occurring, and clean ingredients that taste good.

Mass gainers are pricier than traditional protein powders, so it’s important to have a good understanding of the available options before purchasing. 

To help you decide whether Naked Mass is right for you, we’ve compared it to a similar product: the Transparent Labs Mass Gainer. At $5.13 per serving, Transparent Labs Mass Gainer is slightly more affordable than Naked Mass, although the serving size is much smaller at two scoops versus Naked Mass’ four scoops. While Transparent Labs Mass Gainer’s smaller serving doesn’t contain as many calories as Naked Mass, it does contain a similar amount of protein.

For our detailed thoughts, be sure to check out our full Transparent Labs Mass Gainer Review.

Naked MassTransparent Labs Mass Gainer
Price per serving$6.36$5.13
Serving size4 scoops (321 g)2 scoops (194 g)
FlavorsUnflavored, Chocolate, Vanilla, Chocolate Peanut Butter, Double ChocolateChocolate Glaze Donut, Sweet Vanilla
Calories per serving1,250750
Carbs per serving252 g114 g
Protein per serving50 g53 g
Fat per serving 2.5 g14 g
Third-party tested?YesYes

Customer Experience 

Naked Nutrition lists its contact information directly on its website, making it easy to get in touch with customer service if you have an issue. You can:

Supplements can only be returned within 14 days for a full refund if unopened, so be aware that you can’t return Naked Mass if you tried it and weren’t impressed. If you’re seeking a return because the product was damaged in shipping, you’ll be asked to submit photographic evidence.

Ordering Naked Mass

Ordering from the Naked Nutrition website is pretty standard—simply choose your preferred flavor and delivery frequency, add to your virtual cart, enter your shipping and payment information, and place your order.

If you choose the Subscribe & Save option, you’ll save 20% on your first shipment and 10% on the following shipments. They also offer free shipping when you spend $99 or more. Regular ground shipping to my state (Texas) was fairly standard at $7.

Naked Mass is also available from Amazon, where you can Subscribe & Save up to 10% depending on how many items you have auto-delivered in the same shipment. 

Customer Reviews

Naked Mass commands an impressive 4.5-star rating from 1,180 customer reviews on the Naked Nutrition website in addition to almost 4,000 Amazon reviews at the time of writing.

Most reviews on their website praise the product’s effectiveness, claiming it has helped them gain weight after other mass gainers failed. 

On Amazon, many customers loved the unflavored and chocolate versions, praising their versatility. Some also appreciated that Naked Mass didn’t cause stomach issues like other brands. Like our tester Jacob, however, some customers noted that this gainer doesn’t seem to mix very well.

Final Verdict of Our Naked Nutrition Naked Mass Review

All dietary supplements are meant to be used in conjunction with balanced meals containing whole, fiber-rich foods, if possible. When trying to gain weight, your first strategy should be to include more high-calorie, nutrient-dense foods and snacks.

However, Naked Mass could be an effective, helpful product for people who struggle to eat well due to poor appetites, medical conditions that make it difficult to keep weight on, or for those with an unusually high metabolism.

Overall, we had the following takeaways after testing this mass gainer:

  • It’s effective for weight gain thanks to its high calorie and protein content
  • The benefits may not outweigh the sky-high price for many people
  • Tastes the best when blended in a smoothie or protein shake with other flavorful ingredients

Full Rating

Naked Nutrition Naked Mass

Naked Nutrition Mass is a three-ingredient mass gainer suitable for those seeking a high carb-to-protein ratio. There are no artificial ingredients. There is also no creatine, so you will have to add your own.

Product Brand: Naked Nutrition

Product Currency: $

Product Price: 69.99

Product In-Stock: InStock

Editor's Rating:

Naked Mass Rating

Price per serving – 1
Formulation – 4
Taste – 4
Solubility – 4
Side effects – 5
Third-party testing – 5
Customer service – 4
Customer reviews – 4.5
Buy Now

Naked Mass: FAQs

Which mass gainer is most effective?

If your goal is to build muscle mass, most mass gainers should help as long as you’re performing adequate resistance exercise. If you still struggle to gain weight, a mass gainer with higher calories may be needed. 

Does mass gainer affect kidneys?

Mass gainers are likely safe for healthy people but may put too much stress on the kidneys in those with impaired kidney function, such as chronic kidney disease, due to the high protein content.

Does mass gainer increase belly fat?

Mass gainer is most likely to increase belly fat when taken without a resistance training program. By including resistance training, more of the calories from a mass gainer will be used for building lean muscle rather than increasing body fat.

Are mass gainers good or bad for you?

Mass gainers can be a helpful way to build lean muscle or gain weight when your appetite is poor, both of which are beneficial for overall health. Since they contain carbohydrates with a high glycemic load, they may not be appropriate for people with diabetes. 

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any diseases.

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