Gainful Protein Review: Will This Brand Help Transform Your Body?

Gainful Protein is a company that produces a wide variety of products designed to improve your physique.

Author By Glozine Staff
Updated :Mar 17, 2024
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What is Gainful Protein?

Like many modern supplement and self-care companies, Gainful Protein is a brand that is helping people find custom solutions to their health challenges. Essentially, they make a line of weight-loss and muscle-growth supplements.

But beyond that, they help each customer find the specific blends of ingredients that they need to meet their specific health goals. They also offer resources like nutrient calculators to further assist their customers.

With the help of a company like Gainful Protein, you may be able to finally have the body you’ve always wanted. Their products are also made without harmful ingredients like fillers and dyes.

How Does It Rate?

Value for Cost3.8/5

About the Manufacturer

Gainful Protein employs an in-house team of registered dietitians to help formulate their products and customize them for customers. They also offer customers one-on-one access to a registered dietitian.

They can personalize your supplements based on your weight loss or fitness goals. The company claims that it uses the highest quality ingredients and that its products are free of GMOs.

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Gainful Protein Hydration


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  • Key Ingredients: L-theanine, Calcium, magnesium
  • What It Does: Restores the body’s electrolytes


Gainful Protein was designed to optimize your hydration through 4 key electrolytes. And like all Gainful Protein products, Gainful Protein Hydration can be customized based on parameters like how much you typically sweat when you work out and whether or not you want the product to be caffeinated. Gainful Hydrate comes in powdered drink mix form and you can choose between tropical mango, strawberry lemonade, or lemon-lime flavors.


Gainful Protein Pre-Workout


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  • Key Ingredients: L-citrulline, creatine, valine
  • What It Does: Increases stamina and helps muscles recover


Gainful Protein Pre-Workout is meant to be taken before you start exercising. The purpose of this supplement is to help boost your endurance while you are working out and speed up your body’s recovery after you are finished. It comes in powdered drink mix form and you can choose from watermelon or strawberry lemonade flavors.


Gainful Protein Collagen


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Gainful Protein Collagen

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  • Key Ingredients: Protein, vitamin C, calcium
  • What It Does: Improves joint function and increases collagen production


Gainful Collagen is perhaps their most unique product because it sort of doubles up as a skin care product. As the name suggests, it can help your body produce more collagen which is a connective tissue that improves the status of muscles, joints, and skin. It can help protect your joints when you are working out and may make your skin look better as well.


Gainful Protein Powder


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Gainful Protein Powder

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Product Highlights

  • Key Ingredients: Potassium, copper, manganese
  • What It Does: Supports muscle growth and curbs unhealthy food cravings


Gainful Protein Powder is a supplement that can help you lose weight or build more muscle mass. It can be customized based on parameters like low lactose, ketogenic diet, and plant-based or whey-based formulas. The formula will also be customized depending on whether you want to lose weight, gain weight, or build muscle.

How Does Gainful Protein Work?

Your experience with Gainful Protein will likely start with a quiz. The purpose of the quiz is to help identify your specific fitness goals and to pair you with the supplements that will help you meet those goals.

During the quiz, you will be asked questions about how you want to improve your fitness and how experienced you are with working out and nutrition training. Then, you will be recommended products based on your answers.

In general, there are Gainful Protein products that can help you build more muscle, burn more calories, lose weight, improve your physique, and help your body recover after exercise or training sessions.

Gainful Protein Key Ingredients

In the following section, we will take a look at a few ingredients that appear across multiple Gainful Protein products.


Creatine is a substance that may help improve endurance during workouts and promote faster muscle growth. According to the National Institutes of Health:

“Many studies have demonstrated that creatine supplementation, in combination with various kinds of training, is effective at augmenting training workouts and increasing muscular strength and lean body mass”

However, creatine has also been associated with certain side effects like irritability and aggression.


L-theanine is a type of amino acid that has demonstrated the ability to promote muscle protein production. This means that it may help build muscles quicker than normal. It could also mean that this amino acid can aid in the recovery of muscles after workouts.


L-citrulline is another type of amino acid that appears to be able to improve athletic performance as we see in the following NIH study quote:

“This study has demonstrated that l?citrulline supplementation resulted in a significant improvement in exercise performance and increased skeletal muscle weight, and therefore may be used to enhance sports or exercise performance.”

However, the scope of this study was rather narrow, and more studies involving more participants are needed.

What Are The Pros and Cons of Gainful Protein


  • Their formulas contain no gluten
  • They offer personalized meal plans
  • There are many products to choose from
  • Gainful Protein can personalize your supplements
  • They don’t use artificial flavors in their formulas
  • Gainful Protein products are gluten-free


  • Few customer reviews from 3rd party sources
  • The personalization quiz may take a long time
  • Desired results are not guaranteed
  • Some of the flavors may not taste good
  • Some users may be allergic to the ingredients

What Do the Gainful Protein Reviews Say?

Many of the Gainful Protein reviews that have come in so far have been positive. For instance, take a look at what some happy customers had to say:

This is one of the best protein mixes I’ve had. And love that I was able to specify it to my needs. –Jocelyn

I started running training for three months before trying Gainful Protein. Before Gainful Protein, I wasn’t seeing a lot of improvement or weight loss. Since starting the Gainful Protein powder, I have finally started seeing noticeable changes in my body composition, energy, recovery, and healthy weight loss. –Riley

Now let’s take a look at what some unhappy customers had to say about it:

It actually made me nauseous while exercising. –Andi L.

I thought it was one of the worst-tasting protein powders I’ve tried. I threw it away after my first try. –Wendy



By using Gainful Protein products along with their customization process, you may find a supplement that helps you get the fitness results you’ve been after. You can also take advantage of their meal-planning and dietitian consulting.

It should be noted though that there have been some Gainful Protein reviews that state that the drink mixes don’t taste good. The customization process may also be a little too involved.

With all this in mind, it would be best to take a look at other health supplements and compare them closely with Gainful Protein. That way you will get a clearer idea of which product will work for you.

Frequently Asked Questions (FAQs)

Q. What is the return policy for Gainful Protein products?

A. Unfortunately, there is no mention of a return policy on the official Gainful Protein website. When you buy Gainful Protein from 3rd party sites, they may be able to offer their own return policy.

Q. How do you use Gainful Protein products?

A. Most Gainful Protein products are powdered drink mixes and should be blended and drunk. But each product will have its instructions and the customization process will dictate how you should use each supplement.

Q. Is Gainful Protein worth it?

A. Gainful Protein may be worthwhile if you have struggled to attain your fitness goals and have tried other products that didn’t work for you.

Q. Where can I buy Gainful Protein products?

A. They have an exclusive line of products at Target. Gainful Protein products are also sold on the official website where the prices will vary depending on how you customize each product.


Glozine avoids using tertiary references. We have strict sourcing guidelines and rely on peer-reviewed studies, academic researches from medical associations and institutions. To ensure the accuracy of articles in Glozine, you can read more about the editorial process here.

  1. Creatine Supplementation for Muscle Growth: A Scoping Review of Randomized Clinical Trials from 2012 to 2021:
  2. Effect of dietary L-theanine supplementation on skeletal muscle fiber type transformation in vivo:
  3. l?Citrulline Supplementation?Increased Skeletal Muscle PGC?1? Expression Is Associated with Exercise Performance and Increased Skeletal Muscle Weight:
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