
Hill’s digestive care for cats
Digestive care
Hill’s i/d and Gastrointestinal Biome are both for cats with digestive issues, but the Biome formula uses a specific blend of prebiotic fibers (ActivBiome+) to directly nourish the gut microbiome, promoting healthy stool in as little as 24 hours. The original i/d line focuses more generally on highly digestible ingredients, replenishing lost nutrients with vitamins and electrolytes, and is easy for the cat’s system to process.
Hill’s Prescription Diet i/d for cats

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Hill’s Prescription Diet Gastrointestinal Biome for cats

Focus: Targeting the gut microbiome to promote a healthy digestive ecosystem.
- How it works:
Uses proprietary ActivBiome+ ingredient technology, a blend of prebiotic fibers that rapidly nourishes the beneficial bacteria in the gut.
This process stimulates the production of beneficial postbiotics by the microbiome.
Clinically proven to promote regular, healthy stool within 24 hours and reduce the recurrence of issues.
Also contains Omega-3 fatty acids to help support a healthy immune system.
Which one should I choose?
i/d is a good choice for general digestive support and replacing lost nutrients
Gastrointestinal Biome is specifically formulated for cats with more complex, fibre-responsive digestive issues, where re-balancing the microbiome is the primary goal.
Important considerations
Veterinary recommendation: these are therapeutic foods that should only be fed under the guidance of a vet, who will determine the specific diet and feeding plan for your cat.
Gradual transition : when switching to a new food, it is recommended to do so slowly over 7–10 days to avoid gastrointestinal upset.
Long term use suitability : many Prescription Diet products are suitable for long-term feeding, but your vet will advise on the best approach for your cat’s individual needs.
Want to chat to our team about nutrition for your cat?
- Call and speak to our veterinary nursing team in the first instance
- Book a free nutrition consult with one of our nurses
Call the team on 01653618303 to book your appointment now!
Hill’s Loyalty Scheme
Did you know there is a Hill’s Loyalty Scheme?
Each time you purchase any of the Hill’s products, you can get cash back against your purchase. Click Hill’s Loyalty Scheme to find out more.
Hill’s & Wellness Plan discount
You can also get 10% off your Hill’s food if you are on the Station House Vets Wellness Plan. Visit our Wellness Plan page to find out more.

Hill’s digestive care for cats
Digestive care
Hill’s i/d and Gastrointestinal Biome are both for cats with digestive issues, but the Biome formula uses a specific blend of prebiotic fibers (ActivBiome+) to directly nourish the gut microbiome, promoting healthy stool in as little as 24 hours. The original i/d line focuses more generally on highly digestible ingredients, replenishing lost nutrients with vitamins and electrolytes, and is easy for the cat’s system to process.
Hill’s Prescription Diet i/d for cats

Need some text for this section
Hill’s Prescription Diet Gastrointestinal Biome for cats

Focus: Targeting the gut microbiome to promote a healthy digestive ecosystem.
- How it works:
Uses proprietary ActivBiome+ ingredient technology, a blend of prebiotic fibers that rapidly nourishes the beneficial bacteria in the gut.
This process stimulates the production of beneficial postbiotics by the microbiome.
Clinically proven to promote regular, healthy stool within 24 hours and reduce the recurrence of issues.
Also contains Omega-3 fatty acids to help support a healthy immune system.
Which one should I choose?
i/d is a good choice for general digestive support and replacing lost nutrients.
Gastrointestinal Biome is specifically formulated for cats with more complex, fibre-responsive digestive issues, where re-balancing the microbiome is the primary goal.
Important considerations
Veterinary recommendation : these are therapeutic foods that should only be fed under the guidance of a et, who will determine the specific diet and feeding plan for your cat.
Gradual transition : when switching to a new food, it is recommended to do so slowly over 7–10 days to avoid gastrointestinal upset.
Long term use suitability : many Prescription Diet products are suitable for long-term feeding, but your vet will advise on the best approach for your cat’s individual needs.
Want to chat to our team about nutrition for your cat?
- Call and speak to our veterinary nursing team in the first instance
- Book a free nutrition consult with one of our nurses
Call the team on 01653618303 to book your appointment now!
Hill’s Loyalty Scheme
Did you know there is a Hill’s Loyalty Scheme?
Each time you purchase any of the Hill’s products, you can get cash back against your purchase. Click Hill’s Loyalty Scheme to find out more.
Hill’s & Wellness Plan discount
You can also get 10% off your Hill’s food if you are on the Station House Vets Wellness Plan. Visit our Wellness Plan page to find out more.



