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Shop All Isopure

100% Whey Protein Isolate Zero Carb - Unflavored (3.96 Lbs. / 62 Servings)

Rated 4.5 out of 5
172 Reviews|23 Questions | 123 Answers|
Isopure Zero Carb Whey Protein Powder container front
Isopure 100 Percent Whey Protein Isolate Zero Carb bottle view 3
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  • Isopure Zero Carb Whey Protein Powder container front
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    Main Product
      Gluten FreeSugar FreeLow CarbKeto
      GET ADVICE FROM A HEALTH ENTHUSIAST
      $149.99
      ($2.41/serving)

      SHIPS FREE!

      • Unflavored
      • 3.96 pound Powder$149.99
      • 14.32 ounces Powder$41.99
      • 2.55 pound Powder$109.99
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      These products are dietary supplements and are not intended to diagnose, treat cure or prevent any disease. Reviews are not intended as a substitute for appropriate medical care or the advice of a physician or another medical professional. Actual results may vary among users. Vitaminshoppe.com makes no warranty or representation, expressed or implied, as to the accuracy or validity of the information contributed by outside product review submissions, and assumes no responsibility or liability regarding the use of such information. The information and statements regarding the dietary supplements have not been evaluated by the Food and Drug Administration. If you have a medical condition or disease, please talk to your health care provider. If you are currently taking a prescription medication, you should work with your health care provider before discontinuing any drug or altering any drug regimen, including augmenting your regimen with dietary supplements. Do not attempt to self-diagnose any disease or ailment based on the reviews and do not use the information contained herein for diagnosing or treating a health problem or disease. Proper medical care is critical to good health. If you have a health concern or suspect you have an undiagnosed sign or symptom, please consult a physician or health care practitioner. Online product reviews are a useful resource for, but The Vitamin Shoppe believes that customers who rely on those reviews should get a true and accurate picture of what other customers think. For that reason, we put procedures in place to ensure the reviews you see are real and honest. Additionally, we won't edit reviews to alter the message and we will always treat positive and negative reviews equally.
      ×
      These products are dietary supplements and are not intended to diagnose, treat cure or prevent any disease. Reviews are not intended as a substitute for appropriate medical care or the advice of a physician or another medical professional. Actual results may vary among users. Vitaminshoppe.com makes no warranty or representation, expressed or implied, as to the accuracy or validity of the information contributed by outside product review submissions, and assumes no responsibility or liability regarding the use of such information. The information and statements regarding the dietary supplements have not been evaluated by the Food and Drug Administration. If you have a medical condition or disease, please talk to your health care provider. If you are currently taking a prescription medication, you should work with your health care provider before discontinuing any drug or altering any drug regimen, including augmenting your regimen with dietary supplements. Do not attempt to self-diagnose any disease or ailment based on the reviews and do not use the information contained herein for diagnosing or treating a health problem or disease. Proper medical care is critical to good health. If you have a health concern or suspect you have an undiagnosed sign or symptom, please consult a physician or health care practitioner. Online product reviews are a useful resource for, but The Vitamin Shoppe believes that customers who rely on those reviews should get a true and accurate picture of what other customers think. For that reason, we put procedures in place to ensure the reviews you see are real and honest. Additionally, we won't edit reviews to alter the message and we will always treat positive and negative reviews equally.
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      Isopure
      100% Whey Protein Isolate Zero Carb - Unflavored (3.96 Lbs. / 62 Servings)
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      Product Info

      About This Product

      ISOPURE Zero Carb Unflavored protein makes it easy to cook up something amazing and get a boost of protein. Made with 100% whey protein isolate and no added colors, flavors, or sweeteners, you get only the ingredients you want and nothing more. With 0g carbs, 0g sugar*, no added sugars, and only 2 ingredients, this unflavored formula blends effortlessly into smoothies, baked goods, sauces, and more — without affecting the taste. Packaging may vary. *Not a low-calorie food

      Read More

      Directions

      For a rich, thick shake, mix 31g (about 1 scoop) with 6-8 fl oz of water in a shaker or blender. If a shaker or blender is not convenient, ISOPURE ZERO CARB can be stirred into solution with a spoon.

      Warning

      Use this product as a food supplement only. Do not use for weight reduction. For healthy adults, consume enough protein to meet your daily protein requirement with a combination of high protein foods and protein supplements throughout the day as part of a balanced diet and exercise program. Keep in a cool, dry place.

      Updated Jan 15, 2026
      Read More

      Supplement Facts

      Serving Size: 1 Scoop
      Number of Servings: 62 Servings
      Amount Per Serving
      % Daily Value
      CALORIES   
      110 
      **%
      TOTAL FAT   
      0.5 GM
      1%
      CHOLESTEROL   
      5 MG
      2%
      SODIUM   
      190 MG
      8%
      TOTAL CARBOHYDRATE   
      0 GM
      N/A*
      TOTAL SUGARS  - INCLUDES 0G ADDED SUGARS
      0 GM
      N/A*
      PROTEIN   
      25 GM
      50%
      CALCIUM   
      370 MG
      30%
      POTASSIUM   
      100 MG
      2%
      VITAMIN A   
      300 MCG
      35%
      VITAMIN C   
      15 MG
      15%
      VITAMIN E   
      5 MG
      35%
      THIAMIN   
      0.37 MG
      30%
      RIBOFLAVIN   
      0.43 MG
      35%
      NIACIN   
      5 MG
      30%
      VITAMIN B6   
      0.5 MG
      30%
      FOLATE   
      165 MCG
      40%
      VITAMIN B12   
      2.43 MCG
      100%
      PANTOTHENIC ACID   
      2.5 MG
      50%
      PHOSPHOROUS   
      280 MG
      20%
      IODINE   
      37 MCG
      25%
      MAGNESIUM   
      115 MG
      25%
      ZINC   
      4.1 MG
      35%
      SELENIUM   
      17 MCG
      30%
      COPPER   
      0.56 MG
      60%
      MANGANESE   
      0.5 MG
      20%
      CHROMIUM   
      30 MCG
      90%
      MOLYBDENUM   
      18 MCG
      40%
      CHLORIDE   
      70 MG
      4%

      Other Ingredients:

      Whey Protein Isolate, Vitamin and Mineral Blend (Calcium Phosphate, Magnesium Oxide, Ascorbic Acid, Niacinamide, d-alpha Tocopheryl Acetate, Zinc Oxide, Silicon Dioxide, Calcium D-Pantothenate, Vitamin A Acetate, Potassium Iodide, Manganese Sulfate, Chromium Chloride, Copper Sulfate, Pyridoxine Hydrochloride, Riboflavin, Sodium Molybdate, Sodium Selenite, Thiamine Mononitrate, Folic Acid, Cyanocobalamin), Soy Lecithin, Natural and Artificial Flavor, Salt, Sucralose, Xanthan Gum. Contains: Milk and Soy.

      Does Not Contain:

      Free of Artificial Sweeteners, Free of Artificial Flavors, Free of Artificial Colors

      How Do You Read A Supplement Facts Label?

      Specifications

      Brand:
      Isopure
      Form:
      Powder
      Flavor:
      Unflavored
      Serving Size:
      1 Scoop
      Number of Servings:
      62 Servings
      Price per Serving:
      ($2.42 / serving)
      Product Weight:
      72  OZ
      Specialty Diets:
      Gluten Free ,  Sugar Free ,  rBST Free ,  Low Carb ,  Keto
      Item # :
      NP-12410 / 2285757

      Product Reviews
         (172)

      Disclaimer:

      Product reviews are provided for informational purposes only and reflect solely the views and opinions expressed by the contributors and not those of the Vitamin Shoppe. Vitamin Shoppe does not verify or endorse any claims made in these reviews.Please read the full product reviews disclaimer.

      172 Ratings
      4.5out of 5 stars
      172 Ratings

      Rated 5 stars by 76% of reviewers

      576%

      Rated 4 stars by 12% of reviewers

      412%

      Rated 3 stars by 3% of reviewers

      33%

      Rated 2 stars by 2% of reviewers

      22%

      Rated 1 star by 6% of reviewers

      16%
      1-10 of 172 Reviews
      • checkMost Recent
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      • 18-24 (1)
      • 25-34 (12)
      • 35-44 (10)
      • 45-54 (14)
      • 55-64 (4)
      • 65+ (8)
      Customers talk about
      AI analysis found these key themes mentioned in reviews.
      Aug 3, 2026
      Rated 1 out of 5
      Plaster
      It caked up like plaster. Tried it on milk and water not a good product.
      SANTOS CVerified Purchaser
      Purchased on Jul 12, 2026
      Was this helpful?
      Review by SANTOS C has been flagged
      Flag
      Jul 26, 2026
      Rated 5 out of 5
      Cleanest and lightest on stomach
      Cleanest go to protein powder for people who don't want upset stomach no sweeteners. Clean just to do the job for increasing your protein intake.
      I mix it with yogurt, water or juice.
      M AVerified Purchaser
      Location
      Charlotte, NC, US
      Gender
      Male
      Age Range
      25-34
      Would you recommend?:Yes
      Purchased on Jun 27, 2026
      Was this helpful?
      Review by M A has been flagged
      Flag
      May 20, 2026
      Rated 5 out of 5
      Good product
      Very good
      undefined uVerified Purchaser
      Location
      Bellflower, CA, US
      Gender
      Female
      Age Range
      45-54
      Purchased on May 5, 2026
      Was this helpful?
      Review by undefined u has been flagged
      Flag
      Mar 14, 2026
      Rated 5 out of 5
      Great for everything
      My favorite protein due its versatility
      Salvador GVerified Purchaser
      Location
      San antonio, TX, US
      Gender
      Male
      Age Range
      25-34
      Would you recommend?:Yes
      Purchased on Feb 7, 2024
      Was this helpful?
      Review by Salvador G has been flagged
      Flag
      Mar 14, 2026
      Rated 5 out of 5
      Top notch quality
      My monthly basic. Love using this protein as intra workout along simple carbs
      Salvador GVerified Purchaser
      Location
      San antonio, TX, US
      Gender
      Male
      Age Range
      25-34
      Would you recommend?:Yes
      Purchased on Sep 23, 2024
      Was this helpful?
      Review by Salvador G has been flagged
      Flag
      Feb 22, 2026
      Rated 5 out of 5
      Isopure Protein powder is a great way of getting extra protein.
      I like to drink this as it does not have any flavors.
      undefined uVerified Purchaser
      Location
      Columbia, SC, US
      Gender
      Female
      Age Range
      65+
      Would you recommend?:Yes
      Purchased on Jan 31, 2026
      Was this helpful?
      Review by undefined u has been flagged
      Flag
      Jan 24, 2026
      Rated 5 out of 5
      best ever
      yes
      izzy bVerified Purchaser
      Would you recommend?:Yes
      Purchased on Jun 23, 2025
      Was this helpful?
      Review by izzy b has been flagged
      Flag
      Jan 16, 2026
      Rated 1 out of 5
      Unfair price increases
      Look, this is a great product but you have priced yourselves out of the market. Almost $90! Absurd. We won't be purchasing any longer.
      Nicole DVerified Purchaser
      Location
      Los Angeles, CA, US
      Would you recommend?:No
      Purchased on May 13, 2019
      Was this helpful?
      Review by Nicole D has been flagged
      Flag
      Dec 29, 2025
      Rated 5 out of 5
      Good product
      Consistently good product
      keith cVerified Purchaser
      Location
      Hoover, AL, US
      Gender
      Male
      Age Range
      45-54
      Would you recommend?:Yes
      Purchased on Dec 6, 2025
      Was this helpful?
      Review by keith c has been flagged
      Flag
      Dec 22, 2025
      Rated 5 out of 5
      Good Pure isolate
      This is a good pure isolate protein with only one other ingredient. This protein does not bother my lactose intolerance.
      Vitaman
      Location
      Pittsburgh, PA
      Would you recommend?:Yes
      Originally posted at Isopure
      Was this helpful?
      Review by Vitaman has been flagged
      Flag
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      Disclaimer:

      Product reviews are provided for informational purposes only and reflect solely the views and opinions expressed by the contributors and not those of the Vitamin Shoppe. Vitamin Shoppe does not verify or endorse any claims made in these reviews.Please read the full product reviews disclaimer.

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      1 Question
      Why did you choose this?
      The Vitamin ShoppeStore

      it's clean as possibly can be.

      Hemant BSep 15, 2026

      Good quality

      HUGO JSep 14, 2026

      it just protein Isolate

      Robert FJun 26, 2026

      Good stuff

      Janice AJun 4, 2026
      Questions for Similar Products
      Under the 'Product Info' warning, it states not to use this product for weight reduction. Why? I thought this would be a great solution to my protein needs for weight loss.
      Zero Carb Whey Protein Isolate
      About
      Zero Carb Whey Protein Isolate
      B ROct 12, 2013

        It's perfectly fine to use this as your protein supplement within a balanced diet, I do- its my favorite powder by far, it mixes well even in just your morning coffee, and I've lost a lot including or in my daily 1200 calories. I think they put that warning on there just to say 'hey, this isnt a meal replacement', because it doesn't include carbs or lipids which you need as well.

      Brianna SOct 12, 2013
      Reply
      Inaccurate
      Answer by Brianna S has been flagged

        I use this product as a solution to insure I meet my protein needs from exercising and weight reduction. I think the intention of the manufacturer is that it not be used as a replacement meal but instead as a supplement. This is a very clean complete product.

      PamelaOct 12, 2013
      Reply
      Inaccurate
      Answer by Pamela has been flagged

        I don't know why they put that on there. You would need to ask them. I don't eat much meat & alergic to soy. So I use it to supplement the lack ofpprotein that I consume.

      Claudia SOct 12, 2013
      Reply
      Inaccurate
      Answer by Claudia S has been flagged

        I'm not sure why it would state that. It may be a "CYA" thing.

      Jeanne MOct 12, 2013
      Reply
      Inaccurate
      Answer by Jeanne M has been flagged

      Vote for the best answer above!

      What is the shelf life of this product?
      Zero Carb Whey Protein Isolate
      About
      Zero Carb Whey Protein Isolate
      A shopperAug 21, 2013

        Hi. The last batch I ordered doesn't expire until 6/2015. It may loose some nutritional value the longer it is opened (exposed to air) but I don't know. It is a great product!

      Sharon PAug 21, 2013
      Reply
      Inaccurate
      Answer by Sharon P has been flagged

        I've used this alternating between flavors over the course of a couple of months. I've never had an issue with Isopure protein clumping or not mixing well even over time. Hope this helps.

      Sara HAug 28, 2013
      Reply
      Inaccurate
      Answer by Sara H has been flagged

        Well the label dating indicates almost 3 years. (But as long as it's sealed, it seems like it should keep much longer without degrading much.)

      JohnAug 21, 2013
      Reply
      Inaccurate
      Answer by John has been flagged

        Hard to say as I use a big scoop everyday. Sorry I couldn't be more helpful. It won't go bad, because you'll use it! It's great stuff.

      Laura SAug 21, 2013
      Reply
      Inaccurate
      Answer by Laura S has been flagged

        I drink a shake at least every other day. 1 tub lasts approx 1.5 months for me

      Jennifer BAug 21, 2013
      Reply
      Inaccurate
      Answer by Jennifer B has been flagged

      Vote for the best answer above!

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      Disclaimer:

      Product reviews are provided for informational purposes only and reflect solely the views and opinions expressed by the contributors and not those of the Vitamin Shoppe. Vitamin Shoppe does not verify or endorse any claims made in these reviews.Please read the full product reviews disclaimer.

      Shipping Info

       

      FREE STANDARD SHIPPING on orders of $45 or more

      How to get FREE Standard Shipping:

      1. Ship to an address within the United States (including U.S. territories)
      2. Place your online order of $45 or more* - after promotions and before tax are applied
      3. Use "Standard" shipping option at checkout

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