HILL'S PRESCRIPTION DIET Gastrointestinal Biome with Chicken Dry Cat Food, 8.5-lb bag - Chewy.com

Hill's Prescription Diet Gastrointestinal Biome with Chicken Dry Cat Food

By Hill's Prescription Diet
Rated 4.4021 out of 5 stars
Veterinary Diet Item

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$66.99Chewy Price
$63.64Autoship Price
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About This Item


  • Specially crafted by Hill’s nutritionists and vets to support your pet’s digestive health.
  • Promotes regular, healthy stool.
  • Contains ActiveBiome+ ingredient technology to help activate beneficial gut bacteria and support a healthy GI microbiome balance.
  • Features a proprietary blend of prebiotic fibers to promote regular bowel movements and help balance digestion.
  • Contains generous levels of omega-3 fatty acids, DHA and EPA.

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Nutritional Information

Feeding Instructions


Play Video: Learn More About Hill's Prescription Diet From Our Team of Experts
Learn More About Hill's Prescription Diet From Our Team of Experts

About Hill's Prescription Diet GI Biome Cat Food

Hill’s GI Biome Diet

Hill’s Prescription Diet Gastrointestinal Biome cat food takes a different approach to digestive care. Each formula uses a specific blend of active fibers, known as ActivBiome+, to help your cat’s stomach break down food more efficiently for healthier stools and to help improve regularity. It also contains Hill’s S+OX Shield ingredients, formulated to promote urinary health.

Healthy Stool in A Jiffy

Hill’s Gastrointestinal Biome promotes stool regularity in as little as 24 hours. Its ActivBiome+ Technology, an exclusive blend of prebiotics, whole grain oats and pumpkin, works with your cat’s unique gut flora to foster balance and better stools.

Activate the Gut Microbiome

When it comes to your kitty’s digestive health, the balance between good and bad bacteria is key. Promoting the growth of good bacteria helps keep problematic bacteria in check and supports digestive well-being.

Know the Signs of Digestive Issues

If you notice vomiting, diarrhea or soft stools, straining, stomach gurgling, flatulence, appetite changes, lethargy or depression in your cat, it may be from digestive trouble. See your vet for more insight and see if changing foods can help.

Risk Factors

Many things can trigger digestive issues, including food sensitivities, inflammation and bacterial, viral or parasite infections. Your vet can help determine what’s causing your kitty’s troubles and figure out how diet may play a role.

Veterinarian Recommended

Vets know what’s best for their furry patients, so knowing that they place their trust in Hill’s can give you peace of mind.

About Hill's Pet Nutrition

For more than 70 years, Hill's Pet Nutrition has helped enrich and lengthen the special relationship between people and their pets by putting their passion for the health and happiness of animals into everything they do. They even partner with shelters to provide Hill's food to more than 9 million shelter pets.
Shop Hill’s Pet Nutrition

Questions & Answers

10 Customer Questions

Whats the shelf life of this product? I threw the bag away
Answer by ChewyFeb 26, 2023
An unopened bag of food will last until the expiration date stamped on the bag. Chewy has a 3-month expiration guarantee. Ideally, dry food and treats should be consumed within 6-8 weeks of opening the bag. Exposure to air, light, hot temperatures, and humidity speeds up the rate at which foods degrade. To limit these effects, keep dry foods in their original packaging and store in a cool, dry location.

How many calories this cat food?
Answer by ChewyJan 11, 2023
This recipe contains 424 calories per cup.

what is biome in the food?
Answer by ChewyNov 21, 2019
Hill's ActivBiome Technology is a mixture of active fibers that may help improve regularity.

What is the dry matter analysis for the magnisum and the calcium?
Answer by ChewyMay 23, 2023
On a dry matter basis, this recipe has a magnesium content of 0.088% and a calcium content of 0.75%.

ReviewsWrite a Review

Rated 4.4021 out of 5 stars
291 Ratings
Would recommend to a friend

291 Customer Reviews

Always consult a veterinarian about your pet’s health needs. Customer reviews should not be used as medical advice.
Rated 5 out of 5 stars
By Liz on May 30, 2023

Just Buy It

Back in February our senior cat was given three weeks of an antibiotic- well naturally that resulted in loose stools. He is on the Hills CD after his PU surgery so we were pretty limited on our food options to help his gut recover. We started him on Metronidazole for 2 weeks to firm everything up and seemingly it did nothing, but make it worse. We went cold turkey all meds/probiotics to see if his gut could recovery naturally. There were a few good days here and there. Then we started having full blown diarrhea again. The vet put him on another round of Metronidazole and again it just got worse. We took him to a new vet that recommended we start with this food. We were looking at running a bunch of tests to rule out anything nefarious since we were going on 4 months of loose stools and meds not helping. Within a week of mixing this with his Hills CD food, we had consistently healthy looking stools. And the best part is that it still protects him against urine crystals. This food seriously worked a miracle on our senior cat's gut.

Rated 5 out of 5 stars
By supermax on May 2, 2023


My 4-year old rescue cat has had chronic gastrointestinal issues since the day she was adopted as an 8-week old kitten. After many vet visits, costly prescription diets, supplements, meds, $$$$, etc., we had none to little success normalizing her BMs. My vet suggested Biome & I was reluctant to change bc of the many times we'd been that route with no results, as well as the stress of transitioning. I finally relented & tried Biome & was impressed that even in the initial stages of transitioning from her current prescription food to Biome, I was seeing results. Within a day or two after the 100% transition to Biome was completed, she had (pardon my TMI) normal, solid stools. It truly is a wonderful diet & I have high hopes that these positive results will continue.

Rated 5 out of 5 stars
By Beamoncats on May 3, 2023

Quick and Easy

I had such a hard time trying to buy my cats prescription food from a big chain pet store, I won’t name names, that I decided to purchase it through Chewy instead. Chewy did not disappoint. I uploaded my cat’s script during my purchase and it arrived 3 days later!!! My cat’s belly is happy and I am happy. thanks for making it easy like I was buying cat food and not a Schedule 2 drug.

Rated 4 out of 5 stars
By Trista on Mar 24, 2023

Good for kitties diarrhea, try Endosorb too!

My kitty developed some serious vomiting/diarrhea from some unknown reason (accompanied by an ear infection - check your cat's ears!). Tresaderme with a steroid and antibiotic is what the vet gave her in addition to Endosorb which will absolutely harden their stool, if that is what you need. He also had me buy this food and my cat actually likes to eat it. It is still early on in the "problem solving" part of adjusting her diet, but it's good that she likes to eat this and the diarrhea itself seems to be improving from this combination. Endosorb is a tablet that you divide and sprinkle on their food. (My vet said it works for people, too.) My one star removal is because 1) it is very annoying to have to have a vet's prescription for food and 2) the price of this product.. Why or why is this required? It is ridiculous - what is the danger here, that a cat will eat it and get sick?! Pet food companies already produce garbage for our animals to eat, causing many of the issues that require a higher quality food like this or others. What 'Pet Fooled' and find out. Dumb!

Rated 1 out of 5 stars
By Hannah on May 20, 2023

Waste of money

My cat who needs to eat this food because of his recurring digestion issues will not eat it without covering the kibble in wet food. He normally likes chicken, so it's unusual for him not to eat chicken dry food. Wasted a lot of money on this food.

Rated 1 out of 5 stars
By Carry on Apr 27, 2023

Diarrhea got worse

After all good reviews, I thought this may help my cat with IBD, diagnosed after ultrasound. When the diarrhea became more watery, I had to stop. I ended up doing hair test for good intolerances, and he had high level intolerance to first three ingredients. Now I will try to find a food that he can tolerate. No more chicken!!

Rated 1 out of 5 stars
By JaxonsMOM on May 18, 2023

Not intrigued

I have two cats that really need this type of food, one for crystals and one for GI issues. Neither of them liked it !!! It’s so expensive to just keep buying prescription food. I wish they would give out samples for these situations.

Rated 5 out of 5 stars
By Greta on Apr 20, 2023

Fixed issues

My cat was having issues with diarrhea and I had tried numerous sensitive stomach cat foods but my vet recommended biome and our problem is solved. It's expensive but totally worth not having to bathe my long haired cat every other day and clean up messes everywhere

Rated 5 out of 5 stars
By Kathy on Apr 24, 2023

The Best Food Yet

This food has settled Cambridge's very sensitive stomach. A big plus is that he loves the flavor. It's so flavorful that his brother Stanford, who has no digestive issues, always tries to eat the Gastrointestinal Biome, too.

Rated 5 out of 5 stars
By Bryanna on Mar 3, 2023

This food is a game changer!

This food has completely changed my sweet kitty's life! He's only 7 and has been dealing with chronic constipation from his original urinary care diet food. My vet recommended this and he has regular movements everyday now and it also helps with urinary care which was important for me! This has made my boy feel so much better and has really helped my anxiety that he is doing so much better. It is pricey but it is worth every penny to help my boy!