Bern Dog Brand Fiber for Dogs Digestive, Diarrhea, Constipation & Anal Gland Dog Supplement, 6-oz jar

Deal
Skip image gallery
Slide 1 of 8

At a Glance

  • High Fiber
  • Non-GMO
  • No Corn No Wheat No Soy
  • Digestive Health
  • Made in USA
  • All Lifestages
  • All Breeds

$11.47 First Time Autoship Price
this order
Save 50% (up to $20) today when you set up Autoship. 
$21.80 Autoship Price
(-5%) future orders
  • Keep saving 5% on every order
  • Get deliveries on your schedule
  • Skip, change, or cancel anytime
$22.95 Chewy Price
($3.83 /oz)
Promo, Spend $100, Get $30 eGift Card with code NEWYEAR
Promo, New Customers Only: Spend $49+, Get $20 eGift Card + Free Shipping with code: WELCOME
In Stock
FREE 1-3 day delivery on first-time orders over $35
Free 365-day returns

No interest if paid in full in 6 months on PayPal purchases of $149+. .

About This Item

Details

  • Proudly made in the USA.
  • All-natural, non-GMO supplement is free of preservatives, artificial flavorings and colors, and it contains no corn, wheat or soy.
  • Easy-to-use powder formula has a long shelf life and requires no refrigeration.
  • Designed to offer your pooch relief from diarrhea, constipation and other tummy troubles.
  • Formulated with the expertise of veterinarians.

Ingredient Information

Instructions

Learn More About Bern Dog Brand From Our Team of Experts

Frequently bought together

Questions & Answers

4 Customer Questions

How many scoops are in a jar?

Answer by Paige • Aug 12, 2022
I give this to my dog twice a day and it lasts a little over a month. I’d say about 60 scoops.

Is this meant to be used daily? Or is it safe to be used daily for long term?

Answer by Chewy • Aug 04, 2022
This nutritional supplement should be given daily as needed whenever your dog experiences periods of irregularity.

Does is have to be mixed with a liquid or can it just be sprinkled on top of food?

Answer by Chewy • Jan 30, 2023
This supplement can be sprinkled over food.

is this flavored?

Answer by Chewy • May 11, 2023
Fiber for Dogs contains only two simple active ingredients and contains no flavorings, artificial ingredients, colorings, or preservatives.​​​​​​​
Reviews
Write a Review
4.3
Rated 4.3 out of 5 stars
176 Ratings
Terms & Conditions

Customers Mention

Chewy identifies key considerations with the help of artificial intelligence and our veterinarians.

Ease of Use

78% Positive

Effectiveness

82% Positive

Ingredients

83% Positive

Long-Term Benefits

87% Positive

83 Customer Reviews

Rated 3 out of 5 stars
By Lyle on Nov 5, 2025

Product was less than the designated weight of 6 oz.

I received a "6 oz." container of Bern psyllium fiber for dogs for $22.95 ($3.82/oz.) and noticed the powder took up less than 1/2 of the container. No problem

I received a "6 oz." container of Bern psyllium fiber for dogs for $22.95 ($3.82/oz.) and noticed the powder took up less than 1/2 of the container. No problem if the company uses the same container for 6 oz. and 12 oz. However, when I weighed the contents on my kitchen scale, the powder weighed 5-5/8 oz. I think I was shorted by at least 6% or $1.43. More importantly, it's very bad policy to short your customers any amount. On the other hand, the product seems to work well. My dog had blood in some of her stool and was recommended by my vet to use psyllium fiber. The psyllium fiber has treated the problem well so far.

Rated 5 out of 5 stars
By Jennifer on Dec 2, 2025

Dog love it

I have one of the pickiest dogs in history. This was bought for him since he was having trouble with his digestion. He LOVES it. He gets excited when I put it on

I have one of the pickiest dogs in history. This was bought for him since he was having trouble with his digestion. He LOVES it. He gets excited when I put it on his food. Since the other dog watches every move we make she gets some too (if she sees us putting it on his food she won't start eating till we put it on hers). I have seen an improvement in both of their poops. They are more form and they pass them with ease.

Rated 4 out of 5 stars
By Lindsey on Dec 3, 2025

What I was looking for, but packaging is cumbersome

Ingredients were what I was looking for. Basic psyllium fiber with not much else in addition. The 12 oz jar I ordered comes only partially full and the opening of

Ingredients were what I was looking for. Basic psyllium fiber with not much else in addition. The 12 oz jar I ordered comes only partially full and the opening of the jar and the scoop size is such that you can’t easily scoop out a serving without hurting your hand. I ended up transferring the contents into a wide, shallow tupperware.

Rated 2 out of 5 stars
By Tcambow on Nov 16, 2025

Not easy to use

Well it's ok if you serve dry kibble and can get your dog to eat it. Second if you feed wet food then it's not so easy to feed, if you mix 6oz water to it an add

Well it's ok if you serve dry kibble and can get your dog to eat it. Second if you feed wet food then it's not so easy to feed, if you mix 6oz water to it an add to wet food, we'll let's say it's not practical. Neither of my pups will use this so I donated it to my local shelter hoping they can use it. Suggest find something else.

Rated 5 out of 5 stars
By Rich on Dec 11, 2025

Works great

I have 3 Frenchies and sprinkling a little of this over their food and mixing it in keeps them all regular and who doesn't love that lol

I have 3 Frenchies and sprinkling a little of this over their food and mixing it in keeps them all regular and who doesn't love that lol

Rated 5 out of 5 stars
By debora on Nov 14, 2025

Ease for difficult poo’s

This helps my dog with his poo’s. He was having a difficult time. Highly recommend. Follow instructions so your pet gets plenty of water.

This helps my dog with his poo’s. He was having a difficult time. Highly recommend. Follow instructions so your pet gets plenty of water.

Rated 2 out of 5 stars
By Mary on Oct 22, 2025

to hard to mix

I have tried different thing but my girl Eve eats around it, I used just as powder, I mixed with broth, tried hot water, I need a pi;; form...

I have tried different thing but my girl Eve eats around it, I used just as powder, I mixed with broth, tried hot water, I need a pi;; form...

Rated 5 out of 5 stars
By Lara on Aug 23, 2025

Helped with my Doberman's with poop problems

My 3 year old, female Doberman, has had poop problems since we got her. The vet did some blood work and recommended putting fiber in her food (she was already on

My 3 year old, female Doberman, has had poop problems since we got her. The vet did some blood work and recommended putting fiber in her food (she was already on pre/probiotics). After using this, her poop has become more firm/normal. I have been using this for over a year and will continue it.

Rated 4 out of 5 stars
By Phyllis on Oct 8, 2025

Poop patrol

This has helped firm his poop up enough to pick up easier but I wish I could find just psyllium fiber without any additional ingredients per my vet.

This has helped firm his poop up enough to pick up easier but I wish I could find just psyllium fiber without any additional ingredients per my vet.

Rated 5 out of 5 stars
By Lauren on Jun 25, 2025

A lifesaver

We had a young husky pulled by a rescue we contacted 1-1/2 hours before euthanasia at a metro animal control that had 540 dogs impounded. AC said she was too sick

We had a young husky pulled by a rescue we contacted 1-1/2 hours before euthanasia at a metro animal control that had 540 dogs impounded. AC said she was too sick for us to adopt. After adopting her we needed to help her gut system. Her dx was dysbios. With hydrolized protein kibble, this product along with a capsule of certain pre and probiotics (Visbiome), she no longer has diarrhea. She has been a happy dog since we brought her home, even with her unsettled digestive system. She is loving life!