What’s the Best Flavorless Protein Powder?
Unflavored & Unsweetened Supplements

Written by Isaac

Protein powders are a must for any athlete, aspiring athlete, gym rat, CrossFitter, runner or anyone else who cares about the state of their overall health.

A lean, strong body is the best defense against all manner of physical maladies, and few things will help you achieve it better than a first-rate supplement.

It's no secret, however, that many tasteless powders leave something to be desired in the flavor department.

As such, many people prefer to go with a product that allows them to adjust the final taste to their own liking.

The thing, is it can be difficult to find a flavorless protein powder. But not to worry. We’ve done the research for you and assembled five of the best unflavored protein powders on the market today.

Our Top 5 Unflavored Protein Powders

Ready to give your shake and smoothie an extra energy kick? Now, let's get into the list!



Key Highlights

Isopure tastless protein powder

#1 Isopure Zero Carb (Editor's Choice)

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  • 26g Protein
  • 0g ​Carbs
  • 0g Fat
  • Made from whey and other high-quality ingredients
  • Supports in weight management and muscle growth
  • Can be taken anytime, anywhere
  • Easily mixed with any type of liquid
  • On sale through January
​BulkSupplements product image

#2 BulkSupplements

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  • 27g Protein
  • ​<1g ​Carbs
  • ​<1g Fat
  • ​115 calories per serving
  • ​Made from whey protein isolate
  • Helps in weight loss and muscle growth
  • Recovers muscles after training and workout
  • Can be mixed easily in any liquid
PlantFusion Complete Plant Based powder

#3 PlantFusion

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  • 21g Protein
  • ​2g ​Carbs
  • ​3g Fat
  • ​120 calories per serving
  • Aids in muscle recovery and manages appetite
  • Can be easily digested even with a sensitive stomach
  • Vegan-friendly, contains no soy, dairy, gluten, eggs, nuts
Naked Whey product image

#4 Naked

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  • 2​5g Protein
  • ​3g ​Carbs
  • ​2g Fat
  • ​120 calories per serving
  • Made from only one ingredient
  • Promotes high-intensity energy
  • Makes great-tasting shakes and smoothies
ProMix supplement

#5 ProMix

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  • 2​5g Protein
  • ​3g ​Carbs
  • ​1.5g Fat
  • ​120 calories per serving
  • Aids in making muscles stronger and leaner
  • Unsweetened and unflavored
  • Can be mixed with any shake or smoothie recipes

1. Isopure Zero Carb (Editor's Choice)

This unflavored whey protein isolate from Isopure allows you to meet the elevated needs of your physically active lifestyle.

What you get instead of bake shop taste is health club performance from the first sip to the last gulp of your shake and for many hours after.

Isopure Zero Carb is just that, carb free.

So even those on the restrictive keto diet will be able to take advantage of the nutrients, vitamin and mineral blend employed here to help them repair and build new, harder, bigger muscles. 

Isopure Zero Carb Protein Powder Pack
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Each serving of Isopure provides 25 grams of unsweetened protein powder. It won't produce any of the lactose-related side effects you can get from casein, and it's gluten and GMO-free.

On sale through January


  • ​Zero carbs for keto dieters
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    Effective flavorless whey protein isolate.
  • ​Free of gluten and genetically modified organisms.
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    ​Flavor free for maximum dietary flexibility.


  • ​Be sure to mix it thoroughly.

2. BulkSupplements Unflavored Protein

BulkSupplements has always been light on the packaging and heavy on the quality, and their entry is a worthy addition to their product line.

This is a product of unusual potency and purity containing 90% in every serving.

If what you want is muscle building progress you can see and feel BulkSupplements tasteless protein powder should be on your list of essential supplements.

All BulkSupplement products are tested by an independent 3rd party lab for quality and are manufactured in an FDA certified facility to the highest standards.

Bulksupplemets product image
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  • Has a high degree of bioavailability.
  • ​High quality unsweetened protein powder.
  • ​Contains glutamine peptide to bolster the immune system.
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    ​Made in the US.


  • ​Uninspired packaging.

3. PlantFusion Supplement

PlantFusion is designed to provide the amino acids your body needs to recover quickly and effectively from the most strenuous workout.

It includes L-glutamine to help create durable connective tissues for those new larger muscles and plenty of inulin and cynarin for a healthy liver and stomach.

The branched-chain amino acids in PlantFusion are what stressed out muscles are craving for in the aftermath of a tough workout.

If you don't give it to them, you'll not only fail to see progress you may well suffer setbacks as the muscle tissue fails to answer the call next time.

PlantFusion complete supplement
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PlantFusion will help ensure you stay on the path toward your ultimate goals.


  • ​Completely free of soy, animal products, gluten and dairy.
  • ​Chock full of the BCAAs your hungry muscles need.
  • ​Cholesterol free with a low glycemic load.


  • ​Moderate fructose content.

4. Naked Whey Unflavored Protein Powder

Naked is justifiably proud of the quality of their low sugar protein powder.

It's sourced from the milk of grass-fed dairy cows and subjected to minimal processing so that the it gets to you in its purest possible state.

This is some of the highest quality unsweetened whey protein you can buy, and the unflavored state means you are free to add whatever type of natural flavoring elements you want to fit your taste.

Even if you go naked with it however you'll still benefit from the full complement of branched chain amino acids and glutathione it provides to buttress your muscle building efforts.

Naked Whey product image
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It's unsullied whey protein with no genetically modified organisms, gluten, soy or hormones.


  • ​Gleaned from USDA certified grass-fed dairy cows.
  • ​Completely free of hormones or other destructive additives.
  • ​5.9 grams of BCAAs per standard serving.


  • ​Doesn’t stir easily.

5. ProMix Grass-Fed Supplement

ProMix contains only 2 grams of carbohydrates and no fat which makes it perfect for those seeking to lose weight and build muscle.

There's plenty of complementary B12 to facilitate muscle growth a healthy dose of iron to help bolster your immune system so you can recover quicker and no genetically modified organisms [1].

Unlike some other no-taste powders that slip artificial sweetener into the mix, ProMix Unflavored is 100% free of sweeteners including sugar or fructose and has minimal glycemic impact.

ProMix Unflavored Grass-fed Whey
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It's also one of the few flavorless protein powders derived from plant sources which means it exhibits a high degree of bioavailability.


  • ​Vegan-friendly highly pure, plant-based protein.
  • Low carbohydrate load for keto dieters and certified no taste.
  • ​Free of soy, lactose and gluten.


  • Doesn’t blend as easily as some other tasteless powders.

Our Favorite Flavorless Protein Powder Is...

Flavorless, or as some would call it, tasteless protein powder is preferred by many health-conscious individuals who don't want to be saddled with artificial sweeteners, sugar or artificial flavorings that could disrupt their system.

Zero Carb from Isopure is a perfect example of a plain, unflavored protein that will meet all your nutritional requirements both before and after your workouts. 

Because there are no lactose side effects in its isolate form, and because it contains zero carbs, it's keto friendly and helps you achieve your weight loss aspirations.

Don't wait for a leaner, stronger body to just appear in the mirror one day. Go out and get it with Zero Carb, the best unflavored protein powder isolate from Isopure.

Isopure Zero Carb Protein Powder Pack
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Isopure Zero Carb
Our #1 ​Unflavored Protein Powder

  • 100 calories and 25g of protein per serving
  • Made from the top ingredients for the health conscious
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    Promotes intensified energy during training and workout
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    Helps in weight management
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    Mixes easily in any liquid, even in water
  • On sale through January

About the author


I’m a personal fitness trainer and nutritionist living in sunny Indianapolis, IN. I’ve spent the last 8 years staying at the forefront of the health and fitness industry. In that time, I’ve helped hundreds of people shed the excess weight and get into shape, maintaining their healthy new lifestyle through proper training and eating habits.