How Much Does Hydrolysed Cat Food Cost in the UK? (2026 Price Guide)
Share
Hydrolysed cat food has a reputation for being expensive — and for prescription products, that reputation is earned. But the price gap between prescription and non-prescription hydrolysed diets is larger than most cat owners realise, and it's not primarily driven by the cost of manufacture.
Why is Hydrolysed Cat Food So Expensive?
The enzymatic hydrolysis process does add a modest cost premium over standard dry cat food manufacturing. But the majority of the price difference between prescription and non-prescription hydrolysed products comes from the veterinary supply chain, not the formulation itself. Prescription products are distributed through veterinary practices and specialist veterinary suppliers — with margins and overheads that generic retail channels don't carry.
Additionally, prescription products often require:
- An initial vet consultation: £40–£80
- Prescription renewal fees every 6–12 months: £20–£50
- Delivery charges from specialist veterinary suppliers
UK Hydrolysed Cat Food Price Comparison — 2026
| Product | Protein | Prescription? | Pack size | Approx. price | Per kg |
|---|---|---|---|---|---|
| Hill's Prescription Diet z/d | Hydrolysed chicken | Yes | 1.8kg | ~£45 | ~£25/kg |
| Royal Canin Hydrolysed Protein HP | Hydrolysed soya/chicken liver | Yes | 1.3kg | ~£28 | ~£21.50/kg |
| Purina Pro Plan HA | Hydrolysed soya | Yes | 1.3kg | ~£30 | ~£23/kg |
| Calibra Hydrolysed Cat | Hydrolysed salmon | No | 1.5kg | ~£22 | ~£14.67/kg |
| Ultimate Plus Cat 1.5kg | Turkey / Chicken / Salmon | No | 1.5kg | £19.99 | ~£13.33/kg |
| Ultimate Plus Cat 5kg | Turkey / Chicken / Salmon | No | 5kg | £54.99 | ~£11/kg |
Prices are approximate and based on market research conducted June 2026. Prescription products may incur additional consultation or renewal fees not shown above.
The True Annual Cost — A Realistic Example
A 5kg adult cat eating approximately 55g per day consumes around 20kg of dry food per year.
- Hill's z/d at £25/kg: £500 in food + £60–£130 in prescription costs = £560–£630/year
- Ultimate Plus Cat at £11/kg (5kg bag): £220 in food, no prescription = £220/year
That's a potential saving of £340–£410 per year for a cat that doesn't specifically need a therapeutic veterinary diet.
Is Cheaper Hydrolysed Cat Food Less Effective?
Not necessarily. The effectiveness of hydrolysed food depends primarily on the degree of hydrolysis — how small the resulting peptides are — rather than price. Cats with severe, confirmed IgE-mediated food allergies may benefit from prescription products hydrolysed to a very low molecular weight. For cats with general food sensitivities, digestive conditions, urinary management or coat and skin support, a well-formulated non-prescription product using the same core technology is often equally effective.
Our Freshtrusion HDP process targets short-chain di- and tri-peptides — the same optimal size range as premium prescription products. Our Gastrointestinal Digestive Care recipe independently achieved 92% protein digestibility at West Pomeranian University of Technology, Poland, significantly above the FEDIAF 80% benchmark.
How to Reduce the Cost Further
- Buy the 5kg bag — cost per kg drops from £13.33 to £11
- Sample first — our Sample Box (£3.99) lets you trial all three recipes before committing to a full bag
- Talk to your vet — if your cat is stable on a prescription maintenance diet, ask whether a non-prescription alternative is appropriate
Browse the full Ultimate Plus Cat range — three condition-specific recipes, grain-free, vet approved, no prescription needed.
About the author: This article was written by the Ultimate Pet Foods Nutrition Team. Prices quoted are approximate and based on publicly available UK retail data in June 2026. This article is for informational purposes only and does not constitute veterinary or financial advice.