Isopure Whey Protein Isolate

Isopure Whey Protein Isolate

Whey Protein Isolate!
Pure Unflavored Protein With Zero Additives!
8.8  out of 10  (72 Reviews)

Product Overview

Natures Best Isopure Whey Protein Isolate contains 26 grams per serving of pure, unadulterated 100% whey protein isolate. Any and all impurities typically found in most whey proteins have been removed to provide you with great tasting, lactose free, state of the art carbohydrate free protein supplement.

Natures Best Isopure Whey Protein Isolate is a convenient way to fortify your favorite foods. You simply add Isopure Unflavored Whey Protein Isolate directly to hot food, cold food or beverages. And since it is virtually tasteless, it is the perfect addition to your favorite recipes. It is 100% natural, and has no fat, carbs, sugars or lactose. It has no fillers, no artificial flavors, and no artificial sweeteners.

Nature's Best set out to create a product that didn't hide anything from its customers. We wanted you to know that you're purchasing the best product available on the market. Our protein source is clearly identified as 100% Pure Whey Protein Isolate. We didn't try to confuse you by listing a protein blend that doesn't tell you how much of the product is superior whey protein isolate and how much is whey protein concentrate or sweet whey or some other inferior protein source. It is instantized so it can be taken anywhere and be easily mixed with a spoon.

In addition, Isopure is rich in branched chain amino acids and glutamine.

Each Serving of Isopure Contains:

  • 1404mg of Isoleucine
  • 3094mg of Leucine
  • 1430mg of Valine
  • 2.57g of L-Glutamine

Athletes tend to need more protein than sedentary individuals to achieve positive nitrogen balance. Most recommendations range from 1.5-2.0 grams of protein per kilogram of body weight per day.

Ratings & Reviews

Isopure Whey Protein Isolate
Overall Rating
72 Ratings
Verified Buyer Rating
45 Ratings
Average Flavor Rating
1 Flavors
Top Rated Flavor
Sem sabor
By clicking the button above, you agree to entering the Reviews section. Products in the Store are not intended to diagnose, treat, cure, or prevent any disease.
Nov 11, 2020
Verified Buyer
  • 8 Unflavored

isopure still using ion exchange method which is bad go for nutrabio best isolate

Jun 24, 2020
Verified Buyer
  • 10 Unflavored

AMAZING! I cannot say enough good things about this product. Knowing what I know about the toxicity of sugar and high fructose corn syrup, obviously those are out. But, everything that is "low carb" and/or "sugar free" sadly seems to have either Sucralose (negatively impacts gut microbiome) or Acesulfame Potassium (CAUSES cravings and addictions to sweet tastes in the brain)... or both are added, most of the time. I want to be "pure" and as simple as possible with all natural ingredients wherever possible and without antibiotics (again, hurts gut microbiome, literally killing good gut bacteria) or pesticides. This is the *BEST* protein isolate powder I've found and I now swear by it. I simply make my own protein bars and shakes now, using this along with Stevia, Monkfruit extract, and/or USDA ORGANIC Erythritol as the sweeteners. All 3 show signs of being neutral/healthy for gut bacteria while causing little to no blood sugar or insulin reactions/changes. They just "taste sweet" and pass through harmlessly :) This powder *DOES* use the "ion-exchange filtration" method for a large part of the whey isolate... and yes, that *DOES* pass through HCL (Hydrochloric Acid) as part of the overall filtration process. Having said that... this powder does *NOT* have the slight chlorine aftertaste that their Apple Melon flavored, zero carb Isopure drinks have to them. The filtration process *MAY* add a bit of chlorine to the end product. But... don't look now... salt actually has a bit of chlorine in it as well :) Point being, this product is stellar. Zero flaws and *PERFECT* if you want to avoid the next public health crisis (ruined gut microbiome due to over use of artificial, zero-calorie sweeteners like Sucralose). Hope this review helps expand products as pure and simple as this one!

Dec 15, 2019
Verified Buyer
  • 10 Unflavored
Oct 22, 2019
Verified Buyer
  • 10 Unflavored

Try this product with milk and a tbsp of Hershey cocoa powder. You’re welcome.

Oct 14, 2019
Verified Buyer
  • 10 Unflavored

I have been so eager to try this ever since I ordered it. It finally arrived yesterday and I was Not dissapointed! The possibilities are endless with unflavored proteins. I get to decide what goes in and how much. It can be used in sweet AND savory dishes. If you're planning on stirring this product with a spoon, you're going to end up with clumps. Best prepared with a shaker or blender. As for the taste, it is as stated. Unflavored. You get a hint of unsweetened milk taste but that's it. Best part is it doesn't leave you with a terrible aftertaste. At the end, it all comes down to you and your flavor preferences. I lean more towards the savory and I like to stear clear of artificial sweetners and flavors. So this product was perfect for me. My only regret is getting the 1 pound packet. Will be ordering, more for sure!

Jun 13, 2019
Verified Buyer
  • 10 Unflavored

I like it because it has nothing else but protein, no chemical flavors, additives, etc. Regarding the taste, of course you cannot drink it like other flavored proteins. This one you must mix it with a fruit; I put one banana and some blueberries in the mixer, and it taste great, and more natural.

Apr 16, 2019
Verified Buyer
  • 10 Unflavored

Glad I tried this product. High-quality protein, no fillers or additives, gets the job done with 25g protein per scoop.

Apr 02, 2019
  • 1 Unflavored

I tried this product at my friend's house & wow it doesn't taste good. Then I saw the ingredients & was shocked to see this whey still uses Ion exchange method to get it's whey isolate. Don't they know it denatures the protein? So it's not a high quality protein & it doesn't taste good as well. Entirely Waste of money. I'd be sticking with other popular brands like ON, Dymatize or MyProtein for my protein needs.

Jan 11, 2019
  • 10 Unflavored

God help you if you try to drink this plain. It tastes like a cow **** when mixed with plain water; consider yourself forewarned. Mixed into a smoothie or with some almond milk, however, is perfection! If you hate the artificial sweetener taste of flavored powders you would almost certainly like this. Highly recommend.

Sep 08, 2018
  • 10 Unflavored

I have tried a ton of proteins, as has every one, and this is my favorite. I put a scoop of unflavored in my coffee in the morning and it blends so well and since I like my coffee black, I like that it doesn’t affect the taste. I always come back to this protein.

Apr 16, 2018
  • 10 Unflavored

Thank goodness a company makes an unflavored isolate. Not saying other whey isolates aren't good. Just that when they add in all of the flavoring (not all are natural), then you sort of go against the intent of trying to be healthy. True, you can add fruits, etc. But this stuff plain with a splash of MCT oil and my morning gets started. Please keep this product going!

Feb 22, 2018
Verified Buyer
  • 10 Unflavored

Great product, gives you versatility in what you want it to taste like, I personally do a shake with almond milk and a whole banana. As far as results, has been a good product, only other supplement I use a BCAA.

Jan 29, 2018
Verified Buyer
  • 9 Unflavored

Very good clean protein. I take it in the morning mixed with my Cream of Wheat with some honey and cinnamon. The result is a flavored oatmeal texture.

Jan 10, 2018

I've used Nature's Best unflavored for the past three years and have nothing but good results. I personally do not have a sweet tooth, but if you like your protein supplements tasting like a dessert, this might not be for you. I was looking for something where I had more control the "strength" of the flavor, rather than just adding more fluid. I will add it to soups, sauces I cook with, or even sprinkle it over a salad. To blend a smoothie I will add various fruit for flavoring, or go with chocolate almond milk and I'm done. Very good product I believe.

Sep 21, 2017
Verified Buyer
  • 1 Unflavored

This is the worst tasting stuff ever! By unflavored, they mean not vanilla or chocolate. It has a horrible taste! I added a tsp of vanilla just to make it tolerable. I couldn’t imagine adding it to anything but water. It would ruin your food or drink. Yuck!

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Pure Unflavored Protein With Zero Additives!

What's in Isopure Isopure Whey Protein Isolate

3 Lbs. Unflavored
Supplement Facts
Serving Size:1Heaping Scoopful(29g)
Servings Per Container:About 47
Amount Per Serving
Calories 110
Calories From Fat 0
% Daily Value*
Total Fat 0g 0%
Saturated Fat 0g 0%
Trans Fat 0g
Cholesterol 5mg 2%
Sodium 170mg 7%
Potassium 20mg 1%
Total Carbohydrate 0g 0%
Dietary Fiber 0g 0%
Sugars 0g
Protein 26g 52%
Vitamin A 0%
Vitamin C 0%
Calcium 4%
Iron 4%
Vitamin E 0%
Vitamin K 0%
Thiamin 0%
Riboflavin 0%
Niacin 0%
Vitamin B6 0%
Folate 0%
Vitamin B12 0%
Biotin 0%
Pantothenic Acid 0%
Phosphorus 2%
Iodine 0%
Magnesium 2%
Zinc 0%
Selenium 0%
Copper 0%
Manganese 0%
Chromium 0%
Molybdenum 0%
Chloride 20%
* Percent Daily Values (DV) are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
Ion Exchange Whey (Milk) Protein Isolate, Microfiltered Whey (Milk) Protein Isolate, Soy Lecithin.
This Product Is Produced In A Facility With Soy, Dairy, Egg And Wheat Ingredients, Peanuts And Tree Nuts.

Directions For Isopure Whey Protein Isolate: Add one rounded scoop of Isopure unflavored whey protein isolate to any of your favorite foods to increase your daily quality protein consumption. Isopure mixes with a spoon and is easily added to hot food, cold food or beverages. Drink one serving daily.


Accidental overdose of iron containing products is a leading cause of fatal poisoning in children under 6. Keep this product out of reach of children. In case of accidental overdose, call a physician or poison control center immediately.

Notice: Use this product as a food supplement only. Do not use for weight reduction.

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