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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 1-10 of 30 reviews
Jan 17, 2026
Amanda
5 out of 5 stars review

Verified Purchase

Good tasting protein powder

It tastes good and mixes very easily. I mix this with a lactose free milk. It kinda tastes like a vanilla milkshake. It has not made me bloat, which is good because most protein powders do.

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Oct 29, 2025
Anonymous
5 out of 5 stars review

Verified Purchase

Reformulated "new" Creamy Vanilla

Initially unhappy with the apparent formula change and flavor, I procured a 3lb jug of ISOPURE's creamy vanilla. I have to say that this reformulation is much closer in taste to the "old" formulation, so I am back as their customer once again.

Review from Glanbia Performance Nutrition, Inc.
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Mar 20, 2026
Fisionary
5 out of 5 stars review

Verified Purchase

Great in Coffee

Best tasting protein mix I've found. Mixed really, no chalky taste and better yet, no carbs. I mix a scoop in my 4th cup of coffee.

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Jan 30, 2026
Jules402
5 out of 5 stars review

Verified Purchase

A great quality protein powder

Haven't started using this brand yet but am excited that Sam's is carrying this 0 g Sugar and 0g carb 25 G protein powder

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Sep 20, 2025
Lacy J
5 out of 5 stars review

Verified Purchase

No bloating!

I have a hard time with protein powder causing me to bloat but this brand hasn’t caused me to have that problem. It’s also not chalky and tastes okay.

Review from Glanbia Performance Nutrition, Inc.
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Oct 9, 2025
Drew
4 out of 5 stars review

Verified Purchase

Improved, but doesn't beet the original

The formula definitely has changed recently. Isopure then sent me two replacement batches of the new formula, which improved and no longer has the salty grainy bits in the bottom. The new formula still doesn't really meet the flavor quality of the original powder, but it's significantly improved. Still feels like I'm drinking a "diet" protein powder. If consumers have any say, I would highly recommend Isopure go back to the original gray container formula.

Review from Glanbia Performance Nutrition, Inc.
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May 26, 2026
Mike
4 out of 5 stars review

Verified Purchase

Product review

Is very light not sweet or rich

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Feb 25, 2026
Sev
3 out of 5 stars review

Verified Purchase

Good product bad sizing

I love the product and price but hate the size, this used to be at least for a month and now it barely goes for 2 weeks

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May 21, 2026
WAW
2 out of 5 stars review

Verified Purchase

Disappointed

Did not like the taste or texture of this protein powder. It was very foamy and very thin. Will not purchase again.

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Mar 27, 2026
Lalis
1 out of 5 stars review

Verified Purchase

Horrible Taste

I had bought 2 but once I tasted one, I had to return the other one. They are a good brand but whatever "new formula" they are using has completely ruined the taste! Very disappointing because the Nutritional Facts look on-point.

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