Skip to Main Content
Sam's Club
Sam's Club
All Departments
All Services
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.
4 out of 5 stars
stars
78 ratings34 reviews
  1. 5 stars67% (52)
  2. 4 stars4% (3)
  3. 3 stars9% (7)
  4. 2 stars5% (4)
  5. 1 star15% (12)
Sort by |
Showing 1-10 of 34 reviews
Jun 10, 2026
Reviewer name: Mary
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Highest Calcium protein powder

As an older adult with Osteopenia, I search for good sources of Protein and Calcium. Isopure has both in addition to 100cal/serving. It has many flavors, and I use it twice a day

Helpful?2SUUP0AKWSZR18200754707
Mar 20, 2026
Reviewer name: Fisionary
5 out of 5 stars
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.

Helpful?2SUUP0AKWSZR18200754707
Jun 15, 2026
Reviewer name: Sassy Sue
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Love it!

Best protein powder! Zero carbs, which is hard to find, and tastes great! I use it daily in my morning smoothie and also use it for baking.

Helpful?2SUUP0AKWSZR18200754707
Jan 17, 2026
Reviewer name: Amanda
5 out of 5 stars
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.

Helpful?2SUUP0AKWSZR18200754707
Oct 29, 2025
Reviewer name: Anonymous
5 out of 5 stars
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.
Helpful?2SUUP0AKWSZR18200754707
Jun 14, 2026
Reviewer name: KNR
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

👌🏻👌🏻

I love it, it’s my favorite

Helpful?2SUUP0AKWSZR18200754707
Feb 25, 2026
Reviewer name: Sev
3 out of 5 stars
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

Helpful?2SUUP0AKWSZR18200754707
May 21, 2026
Reviewer name: WAW
2 out of 5 stars
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.

Helpful?2SUUP0AKWSZR18200754707
Mar 27, 2026
Reviewer name: Lalis
1 out of 5 stars
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.

Helpful?2SUUP0AKWSZR18200754707
Apr 18, 2026
Reviewer name: Lacey
1 out of 5 stars
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.

Helpful?2SUUP0AKWSZR18200754707