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Isopure Zero Carb 100% Whey Protein Isolate Powder, Unflavored, 25g Protein, About 16 Servings

Key item features

  • 25g of high-quality, ultra-filtered protein from 100% whey protein isolate for exceptional purity and quality
  • An effortless addition to your favorite smoothies and recipes
  • No added colors, flavors, or sweeteners
  • Only 2 ingredients
  • 0g Sugar* and 0g Carbs. *Not a low calorie food
  • 5g Naturally Occurring BCAAs and 4.5g Naturally Occurring Glutamine/Glutamic Acid
  • Packaging may vary
Current price is $34.99$2.19/oz
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Arrives by Fri, May 29
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Fulfilled by Walmart
4.678711463058353 stars out of 5, based on 13047 seller reviews(4.7)
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Customer ratings & reviews

4.5 out of 5 stars
stars4,607 ratings2,302 reviews
How item rating is calculated
  1. 5 stars77% (3,544)
  2. 4 stars9% (426)
  3. 3 stars4% (193)
  4. 2 stars3% (126)
  5. 1 star7% (318)

Reviews summary

Pros

  • : Provides 25 grams of protein per serving.
  • : This protein powder has no carbohydrates.
  • : Can be easily added to various fruit and liquid combinations.
  • : Mixes smoothly with various liquids.
  • : Offers good quality and performance at a fair cost.
  • : Has a subtle, neutral taste without overpowering other flavors.
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Showing 1-3 of 2,302 reviews

Aug 26, 2025
Airen
5 out of 5 stars review

Seller Verified Purchase

Clean powder free of additives

I really love this protein supplement. It has a mild flavor and mixes pretty well with cool water. I chose it because I was searching for a "clean" supplement it found this on another website that listed independently tested powders free of contaminants like heavy metals. I also like that there are no additives. You can mix it in with some foods for a boost of protein. It kinda gives the food a cheesy/umami flavor.

Review from Glanbia Performance Nutrition, Inc.
Helpful?70187a80-4509-11f0-8d8f-136482466119165411683
reply from Isopure

We're glad you found Isopure Unflavored! 😄

Jun 7, 2025
Ridge
Item details
Count: 1
Primary ingredient: Whey Isolate
5 out of 5 stars review

Verified Purchase

I am SOO surprised. I am very hypersensitive to protein powder and have always struggled with any shakes or the “protein-packed” snacks; but I can actually stomach this and my husband has added to my food and I didn't even know until he told me!

Helpful?70187a80-4509-11f0-8d8f-136482466119165411683
reply from Isopure

We love to surprise! Isopure Unflavored is a great choice to add for cooking and baking! 

Oct 17, 2025
Beth J
5 out of 5 stars review

Seller Verified Purchase

Great product!

I've been using Isopure Unflavored protein powder for a couple of years. It dissolves easily into beverages (I add it to my chai) and I like adding it to my smoothies, Greek yogurt and oatmeal as a way to get extra protein. I also love the large package size which means less ordering + less packaging waste!

Review from Glanbia Performance Nutrition, Inc.
Helpful?70187a80-4509-11f0-8d8f-136482466119165411683