Where to Get Hydrolysed Cat Food Samples in the UK (2026)

If your cat has a health condition that might benefit from hydrolysed food — or you've been recommended one by your vet — you'll want to test whether your cat will eat it before committing to a 1.5kg or 5kg bag. Here's an honest guide to what's available in the UK in 2026.

Why Sampling Matters with Hydrolysed Cat Food

Hydrolysed cat food has a different smell, texture and palatability profile to standard food — the protein has been broken down into peptides before manufacturing, which changes the sensory properties. Some cats take to it immediately; others need a gradual introduction. Without sampling first, there's a real risk of buying a full bag your cat refuses to eat.

Sampling is particularly worthwhile if:

  • Your cat is a fussy eater or has previously refused new foods
  • You're switching from wet to dry food
  • You're unsure which condition-specific recipe — digestive, urinary or skin and coat — best fits your cat's primary need
  • Your cat has a history of digestive upset when transitioning between foods

Options for Hydrolysed Cat Food Samples in the UK

1. Prescription samples via your vet

Some veterinary practices carry sample sachets of prescription hydrolysed diets — typically Hill's Prescription Diet z/d or Royal Canin Hydrolysed Protein HP — distributed to practices as part of the manufacturer's sales process. These are generally available when a vet recommends the product following a consultation. They're not available to purchase directly.

If your vet has recommended a prescription hydrolysed diet, ask whether a sample is available before buying a full bag.

2. Non-prescription sample packs

Until recently, there were no dedicated sample packs for non-prescription hydrolysed cat food in the UK. Most non-prescription hydrolysed products — including Calibra's hydrolysed range — were only available in full 1.5kg bags, making it difficult to trial before committing.

We designed our Ultimate Plus Cat Sample Box specifically to address this gap. For £3.99, it contains:

We launched our Ultimate Plus Cat range in 2026, and as far as we are aware, this is the only dedicated non-prescription hydrolysed cat food trial pack currently available in the UK. Each 100g portion is sufficient to introduce a new food over 3–5 days, and having all three recipes in one box lets you identify which formula best suits your cat's primary health need before committing to a full bag.

3. Manufacturer direct samples

Some pet food brands offer direct sample requests. Burns Pet Nutrition, for example, offers free samples of their hypoallergenic range (though not specifically hydrolysed protein). It is worth checking the websites of brands you are considering, as sample availability varies and changes over time.

How to Introduce Hydrolysed Cat Food Successfully

A gradual transition reduces the risk of digestive upset regardless of which food you're moving to:

  • Days 1–3: 25% new food, 75% current food
  • Days 4–6: 50/50
  • Days 7–10: 75% new food, 25% current food
  • Day 11+: 100% new food

Cats with particularly sensitive digestion may need a slower transition — hold at each ratio for an extra few days if loose stools or vomiting occur before progressing.

What to Look For After Trialling

After a 7–14 day full transition onto the new food, positive signs to watch for include:

  • Stool consistency — firmer, more formed stools indicate improved digestibility (digestive recipe)
  • Coat gloss and texture — visible improvement typically appears after 3–4 weeks (skin and coat recipe)
  • Reduction in hairball frequency — usually apparent within 2–4 weeks (skin and coat recipe)
  • Willingness to eat — palatability matters, especially for fussy cats

Urinary pH improvement from the Urinary Health recipe is an internal change — your vet can confirm urine pH at a follow-up appointment if you want to verify the dietary effect.

Browse the full Ultimate Plus Cat range — or order the Sample Box and let your cat decide.

About the author: This article was written by the Ultimate Pet Foods Nutrition Team. We launched our hydrolysed cat food range in 2026 and created the sample box in response to the lack of non-prescription trial options in the UK market. All formulations are developed by trained pet nutritionists and approved by licensed veterinarians. This article is for informational purposes only.

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