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Customer reviews for Benefiber Daily Prebiotic Fiber Supplement Powder, Unflavored, 28.9 oz. for
Benefiber Daily Prebiotic Fiber Supplement Powder, Unflavored, 28.9 oz.
4.8 out of 5 stars
stars910 ratings151 reviews
  1. 5 stars90% (816)
  2. 4 stars6% (55)
  3. 3 stars2% (17)
  4. 2 stars0% (4)
  5. 1 star2% (18)

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Showing 1-10 of 151 reviews
May 29, 2025
JPinNC
5 out of 5 stars review

Verified Purchase

Large Size, Small Price

This is a larger sized container than what is typically found in stores and even at major online sellers, and although it is usually comparably priced, on sale it's even better. It offers an easy way to add fiber to your diet, too. I add it to my coffee and I'm good to "go,"

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Apr 8, 2026
TRCIII
5 out of 5 stars review

Verified Purchase

Right Price, Wrong Packaging

I love the product for what it does for me personally. However, the packaging is all off. Why do you create a small funnel at the top to prevent a person from getting the last ounces out of the package. I resorted to emptying the package into a competitor's bottle that is more open and easier to use.

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Mar 11, 2026
Carmelita
5 out of 5 stars review

Verified Purchase

Great product recommended by Midwives

This was recommended by Midwives when I was pregnant, and I have stuck with it throughout the years now. It does not have lead in it like some if the other things that help you go. It is dissolves well in hot or cold beverages. It is tasteless where you could drink it in water or tea, but I love it in my daily iced Matcha. And it helps your intake count for soluble LDL lowering fiber. This package I purchased here was the most cost effective way to purchase.

Review from walmart.com
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Sep 18, 2024
OzarkMtnNana
5 out of 5 stars review

Verified Purchase

Dr. Prescribed OTC

I see a Gastroenterologist on a regular basis for some serious issues. He had prescribed polyethylene glycol which has some side effects. Due to a move to another town, I had to change doctors. After a number of different procedures and tests the new doctor prescribed also taking the Benefiber because not only would it counteract some of the side effects of the polyethylene glycol, it would also add probiotics to my system without my eating dairy products to which I am allergic. It has taken a few months of trial and error to get just the right combo of both meds but I am so much better, it was well worth it. Sam's runs the Benefiber with "Instant Savings" regularly and it really helps my budget.

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Jun 24, 2025
dorism3560
5 out of 5 stars review

Verified Purchase

Great for my budget

Since this is something I have to take everyday, it is great that I can get it at Sams Club at the best price I have found.

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Sep 25, 2025
Tina
5 out of 5 stars review

Verified Purchase

Keeps me regular

Love this. Benefiber is very gentle and not hard like other brand. I add one teaspoon to my morning coffee

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Mar 25, 2026
Gus
5 out of 5 stars review

Verified Purchase

Gastroenterologist recommended.

Gastroenterologist recommended Benefiber, by brand name, several years ago. Sam's Club price delivers the best value.

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Mar 29, 2025
Debe C
5 out of 5 stars review

Verified Purchase

It’s like ghost, you don’t know it’s there!

This is by far the easiest and best way to get some extra fiber in your diet. I mix it in my coffee or just a small glass of water. No taste, no texture, no smell!

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Jan 17, 2025
BOB
5 out of 5 stars review

Verified Purchase

OUTSTANDING PRODUCT AND GOOD PRICE!

Benefiber has been my "fiber" supplement for over 10 years (possibly 20) and I usually buy it at Sam's Club because of the larger size and the price. If your doctor puts you on a fiber supplement I would recommend Benefiber.

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Jul 5, 2024
SamsClubPatron
4 out of 5 stars review

Verified Purchase

Benefiber or Metamucil?

I switched from Metamucil but I think I got better results with Metamucil and am thinking of switching back. What I like about Benefiber is you can dissolve it in a glass of water, add it to you cup of tea or coffee and even just sprinkle it on your food. There's no taste and it doesn't congeal the way Metamucil does. But for some reason, it doesn't seem to work as good for me. I've been taking it for 2 weeks now and will give it another week or two to see if it gets better. I'm sure this works great for others.

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