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Purina Pro Plan Veterinary Diets FortiFlora Powder Probiotic Digestive Supplement for Cats, 30 count

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At a Glance

  • Digestive Health
  • Immune Support
  • All Lifestages
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About This Item

Details

  • This veterinarian-recommended probiotic helps support digestive health in cats and kittens.
  • Provides gentle support for the dietary management of diarrhea and excessive gas.
  • Contains special probiotics that promote intestinal health and balance in cats.
  • Antioxidants in the formula help support a robust immune system.
  • Easy-to-feed powder form makes administration simple and convenient

Instructions

FAQ

Key Ingredients

  • Taurine

    Amino acid essential for cats and also commonly added to dog food to support heart health, vision, and reproduction.

  • Probiotics

    Beneficial bacteria and yeast that support a healthy gut microbiome.

Learn More About Purina Pro Plan Veterinary Diets From Our Team of Experts

Probiotics to Support Cats with Diarrhea

The #1 veterinarian-recommended probiotic brand for digestive health support.* Contains a probiotic proven to promote normal intestinal microflora, support cats with diarrhea, and help maintain a strong immune system.

 *Revelation Veterinary Tracker, 2025

The Power to Help Pets Thrive

Great-tasting, easy-to-use supplements made with purposeful ingredients to support the unique needs of pets.

Supplements Rooted in Science

Pro Plan Supplements are backed by nearly 500 scientists, including behaviorists and veterinarians, providing trusted support for a cat’s wellness routine.

Helping Vets and Pets

Launched in 2024, the Pro Plan Veterinary Support Mission has contributed more than $3.5 million to improve the well-being of veterinary professionals and their patients.

About Purina Pro Plan Veterinary Diets

Pro Plan is committed to ongoing research, innovation, and product development to enhance the nutrition pets receive every day. The brand provides therapeutic nutrition, supplements, and great-tasting treats designed to meet the unique needs of pets.

Shop Purina Pro Plan Veterinary Diets

Frequently bought together

Questions & Answers

59 Customer Questions

What type of good bacteria is provided in this?

Answer by Veronica • May 30, 2026
It has a strain of beneficial lactic acid bacteria called Enterococcus faecium, based upon my research. My cats often get antibiotics and we’ve given it to them while on them. Little tip: if your cat is like ours and won’t eat it mixed into food, get Nacho brand beef bone broth, suck up about 3 1/2ml into a cup, stir in the fortiflora really well, and suck it up into a syringe. My picky eater actually wanted more!

Should you give your elderly cat a full packet first time

Does this have any iodine substances in it? (Concerned due to cat with hyperthyroidism.)

Can you give this with the flora packets at the same time ?

Reviews
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4.7
Rated 4.7 out of 5 stars
8755 Ratings
Terms & Conditions

Customers Mention

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

Ease of Use

90% Positive

Effectiveness

92% Positive

Ingredients

92% Positive

Long-Term Benefits

93% Positive

3959 Customer Reviews

Rated 5 out of 5 stars
Verified Purchase
By Alexis on May 1, 2026

100% Works

This probiotic supplement has been the only thing to permanently remedy my cat’s chronic diarrhea. I tried other digestive supplements and sensitive digestion foods,

This probiotic supplement has been the only thing to permanently remedy my cat’s chronic diarrhea. I tried other digestive supplements and sensitive digestion foods, which either didn’t work at all or would stop working after a few days. I felt so bad for my poor kitty. I wish I tried these probiotics sooner and kick myself for thinking they wouldn’t work. I sprinkle one sachet onto my cat’s daily wet food meal and he eats it up. Within 2-3 days of starting the probiotics his “movements” were formed and they have continued to get better over the last ~20-30 days. I will absolutely buy this wonderful product long-term if it continues to work.

Rated 5 out of 5 stars
Verified Purchase
By Deborah on Feb 18, 2026

Kitty loves this and it is good for him

Buffy is a rescue older cat (13 yrs?)that I have had for 3 years. He had many digestive and bowel issues when I found him. Over time I have found a bowel/constipation/tummy

Buffy is a rescue older cat (13 yrs?)that I have had for 3 years. He had many digestive and bowel issues when I found him. Over time I have found a bowel/constipation/tummy routine along with regular brushing that has stabilized his issues and he absolutely loves it. Every evening he gets 1 capsule opened of unflavored Metamucil, 1/4 teaspoon Mirilax, 1/2 pack of FortiFlora and 1/2 liquid tuna treat mixed with a little water to a slurry. This has produced a daily soft formed stool with much decrease in vomit. I have used FortiFlora to assist with other medication administration over the years. Of course check with your vet before any home remedies.

Rated 5 out of 5 stars
By sarah on Jan 21, 2026

this stuff must be delicious

My cat loves this stuff. We put it in her food with her GI lymphoma medications and she freakin mows it down. I think it’s just pure concentrated meat flavor. it

My cat loves this stuff. We put it in her food with her GI lymphoma medications and she freakin mows it down. I think it’s just pure concentrated meat flavor. it makes me want to put it in my soups as the human in this situation my only real issue with this product is that the default dotted line shows that you have to tear the right side of the package where the picture of the cat’s head is to pour the powder out. but i figured out an alternative solution by tearing the opposite corner.

Rated 5 out of 5 stars
Verified Purchase
By Alesia on Feb 12, 2026

Very contented kitty and owner

My cat has been on Purina n/f for sometime now and it’s managing her kidney disease quite well. The FortiFlora is a more recent addition to her diet and she loves

My cat has been on Purina n/f for sometime now and it’s managing her kidney disease quite well. The FortiFlora is a more recent addition to her diet and she loves it so much she won’t eat her morning meal without it now! Love Chewy’s auto ship feature; easy to navigate as alter as needed and shipments are reliably quick. Extremely pleased with ease of shopping and speedy, safe arrival

Rated 5 out of 5 stars
Verified Purchase
By Mary on Mar 19, 2026

Vital to her digestion

I took in Elsa, a beautiful but very gassy cat, last November as a stray, and the vet informed me she needed probiotics, but they are prohibitively expensive when

I took in Elsa, a beautiful but very gassy cat, last November as a stray, and the vet informed me she needed probiotics, but they are prohibitively expensive when purchased from the vet. I am so glad you offered the same item at a more reasonable price. She truly needs probiotics every day.

Rated 5 out of 5 stars
Verified Purchase
By leila on Dec 29, 2025

Helpful!

This helped my senior cat feel a little more normal before he passed. He ate it for about a month and then he stopped eating it and most other food, but that was

This helped my senior cat feel a little more normal before he passed. He ate it for about a month and then he stopped eating it and most other food, but that was because he was ill. I’m really convinced this food helped him not be in pain the last month he was around

Rated 5 out of 5 stars
Verified Purchase
By Valerie on Feb 25, 2025

Been using this for years

I first started using this when I had a boy with GI issues. Along with special food, this helped him keep his stools more formed. When he died, I quit using it,

I first started using this when I had a boy with GI issues. Along with special food, this helped him keep his stools more formed. When he died, I quit using it, until my old Calico, Ayami, started having runny stools from the antibiotics I was giving her for a UTI. Between this and something from the Vet, got her straightened out. However, she is very susceptible to loose stools, and she's 17. So I give her some every night in her wet food. My son's cat, also a calico, Lorelei, is getting up there, so I put it in her food as well now. She gets pukey, so it seems to help her a lot.

Rated 5 out of 5 stars
Verified Purchase
By Hana on Mar 26, 2026

Helps with stink!

My cat has been taking theophylline for her asthma which has this bad smell, which translates to her litter box later on. This probiotic not only helps to mask that

My cat has been taking theophylline for her asthma which has this bad smell, which translates to her litter box later on. This probiotic not only helps to mask that smell, but it also entices her to eat her wet food more, preventing constipation from dehydration. My other cat also just started using it for his tummy upsets! Thank you!

Rated 5 out of 5 stars
Verified Purchase
By Hayley on Nov 1, 2025

Great for Kitten Loose Stool

My kittens were already on this when I got them, so i figured I'd continue. They both have occasional issues with loose stool, and I've realized as I've made slight

My kittens were already on this when I got them, so i figured I'd continue. They both have occasional issues with loose stool, and I've realized as I've made slight adjustments that this really does help. I was splitting 1 pack over the course of a day for them (aww one just came to sit in my lap!) at first, then i tried giving them half a pack each only at breakfast, and now I'm basically just sprinking some on each meal and using between 1 and 2 packs a day (aww the other one just came and sat on top of the first one in my lap!). I could tell a huge difference when they weren't getting it with every meal- a lot more inconsistent stools. Very happy with this for now, although I've become aware that there may be better all around probiotics for cats (with more types of bacteria for their gut- I believe this just has one type). If you have a kitten with loose stool, definitely this is worth a try, and I'd say some with every meal from my experience.

Rated 5 out of 5 stars
Verified Purchase
By Eileen on Apr 18, 2026

Saving Boomer

Boomer is an elderly kitty with chronic bouts of coughing up and then Throwing up. When I adopted him from the shelter he was extremely underweight and had a parasite

Boomer is an elderly kitty with chronic bouts of coughing up and then Throwing up. When I adopted him from the shelter he was extremely underweight and had a parasite. We got thru the parasites and he seems to be happier now. He has been taking this for about a week now and had only thrown up one time. Hopefully it is helping him.