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Sam's Club
Customer reviews for Isopure Zero Carb Whey Protein Isolate Powder, Simply Vanilla, 1.47 lbs. for
Isopure Zero Carb Whey Protein Isolate Powder, Simply Vanilla, 1.47 lbs.
3.9 out of 5 stars
stars70 ratings30 reviews
  1. 5 stars64% (45)
  2. 4 stars4% (3)
  3. 3 stars10% (7)
  4. 2 stars4% (3)
  5. 1 star17% (12)
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Showing 21-30 of 30 reviews
Jan 21, 2026
Matthew
5 out of 5 stars review

Verified Purchase

Great taste!

Great taste!

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Apr 18, 2026
Lacey
1 out of 5 stars review

Not stated that this is not returnable so FYI you'll be out what you spent on this. Also, they changed the formula and now it doesnt mix as well and has a chemical aftertaste AND has much less flavor. Tastes like dirty, slightly vanilla flavored water.

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Jan 4, 2025
Kyle
5 out of 5 stars review

Verified Purchase

Delicious & reliable

I’ve been using isopure for several years and it has always been a great product. Only downside is that it has gotten increasingly expensive

Review from Glanbia Performance Nutrition, Inc.
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Mar 26, 2026
JAMES
1 out of 5 stars review

Poor taste

No matter how you mix it, it does not taste good. It barely has any flavor to it and gives a mouth feel as if you're drinking dirty water. Very watered down flavor.

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Apr 11, 2026
Christine
5 out of 5 stars review

hearing a lot of negative. i make a shake made with almond milk and a bit ov vanilla and equal. they're addicting with low carbs and calories. yum

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Jan 11, 2026
Rachel
5 out of 5 stars review

Great Zero Carb Powder

I love that this was a zero carb protein powder. The vanilla is great for adding into coffee, smoothies, etc and mixes in fairly easily. It does have a strong vanilla flavor but personally, I like it.

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Aug 12, 2024
Karla
5 out of 5 stars review

Verified Purchase

Best protein powder

Great tasting protein powder. Tastes like chocolate but not too sweet. Love to bake with this also.

Review from Glanbia Performance Nutrition, Inc.
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Sep 15, 2024
Ariel
5 out of 5 stars review

Verified Purchase

My favorite

The only protein I’ll use! Doesn’t have the gross fake sweetener taste most protein powders do.

Review from Glanbia Performance Nutrition, Inc.
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Feb 22, 2026
JACOB
3 out of 5 stars review

Has a great amount of calories but very hard to get it mixed. Also doesnt work great for coffee.

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Jan 30, 2026
Amanda
3 out of 5 stars review

So so

Tastes okay at first but bad after taste. Like an iron like after taste.

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