Isopure Whey Protein Isolate

Isopure Whey Protein Isolate

Whey Protein Isolate!
Pure Unflavored Protein With Zero Additives!
8.9  out of 10  (70 Reviews)
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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
70 Ratings
Verified Buyer Rating
43 Ratings
Average Flavor Rating
1 Flavors
Top Rated Flavor
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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.
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!

Sep 11, 2017
Verified Buyer
  • 9 Unflavored

I'd done the research in the early 2000s and learned that Nature's Best Isopure Why Protein Isolate is actually some of the best stuff on the market. I also learned one year after doing a fast that it's often advised to people who've had stomach (or gastoral bypass) surgery because it's natural and, like I'd learned in my studies, some of the best stuff out there for you. So I've been using this brand for over a decade. I used to get the flavored (and they have some really good tasting flavors), but noticed that they all have sucrolose (one even had some Chinese stuff that I had to look up (2 or 3 words). Either way, I also don't like artificial sweeteners, so when I'd learned that this has about 3 ingredients, I jumped on it. Flavor: It actually tastes more like powdered milk (it's protein from milk, which makes sense). It's also creamy. Mix: They have a video that shows somebody mixing a scoop into a glass of water, but I'll tell you, no matter how many times I've tried that, it always turns out milky and with whey chunks. I don't know, maybe their tap has different stuff in it than Chicago tap, but it never worked the same for me. -I have found that it does dissolve better in warm liquid. Also, if you use almond milk, mix the powder in a little real milk first, then pour in the almond milk, bc for some reason, it doesn't dissolve as well in almond milk. -Another trick: after shaking or stirring it up for a bit, let it sit for a few minutes, then stir or shake it again. This gives it time to dissolve some, and will mix up better the 2nd time. -Or just stick it into a blender - that works every time. I do wish this came in those larger (5Lb?)buckets, like the other flavors, but for some reason, they don't. I have not tried to add it to food. (to add protein, say if I eat pasta, I'll just mix 1-2 scoops in a drink on the side). I would definitely recommend this to anybody who's looking for a good whey protein isolate that won't mess them up.

Aug 17, 2017
Verified Buyer
  • 2 Unflavored

I was tired of super sweet protein shakes and I was looking for something unflavored, however, this has a very strange taste. I added strawberries, blueberries and it still did not mask the strange flavor.

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Price: $13.59  ($0.85 / Serving)
Flavor Rating: 8.1
Pure Unflavored Protein With Zero Additives!

What's in Isopure Isopure Whey Protein Isolate

1 Lb. Unflavored
Serving Size: 1 Heaping Scoopful (29 g)
Servings Per Container16
Amount Per Serving
Calories 110       
Calories From Fat 0       
% Daily Value *
Total Fat 0 g 0%
Saturated Fat 0 g 0%
Trans Fat 0 g       
Cholesterol 5 mg 2%
Sodium 170 mg 7%
Potassium 20 mg 1%
Total Carbohydrate 0 g 0%
Dietary Fiber 0 g 0%
Sugars 0 g       
Protein 26 g 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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