Dry cat food for kidney disease
If your cat has been diagnosed with kidney disease, the honest answer is that the right food is a decision for your vet, made against your cat's own bloodwork, not something to pick off a shelf. What we can offer honestly is a small range of kidney-support recipes formulated with the kind of profile vets tend to reach for, plus the general things — water, protein quality, keeping an eye on weight — that help any older cat's kidneys along the way.
Why this is not a straightforward grid to shop
Kidney disease varies enormously in how advanced it is and what a particular cat's bloodwork shows, and the dietary changes vets recommend — usually around protein quality and quantity, phosphorus, and sodium — are tailored to that picture rather than a single fixed recipe that suits every cat with the label "kidney" on it.
That is why we are not going to tell you which of our recipes is right for your cat. What we can do is be upfront about what is on the shelf and what it is generally formulated for, so the conversation with your vet starts from an informed place rather than a blank one.
What we stock that is built with kidney support in mind
Pro Plan 1+ Adult Cat Renal Plus Chicken and Arden Grange Vetcare Renal Hydrolysed Chicken with Sweet Potato are both formulated around the reduced-phosphorus, controlled-protein profile that vets commonly recommend once a kidney condition has been confirmed. Both are complete dry foods, not a treat or a supplement.
Whether either one is the right fit, and whether your cat should be on a renal-support diet at all rather than a general senior recipe, depends on test results your vet has and we do not. Take the name of whichever one you are considering along to your next appointment rather than deciding from the packet.
What helps any older cat, kidney diagnosis or not
Water intake matters more here than almost anywhere else in feline health, because a cat who drinks well puts less strain on kidneys that are already working harder than they should. A pet water fountain encourages some cats to drink more than a static bowl does, and adding wet food alongside dry increases moisture intake without you having to persuade a fussy drinker to do anything differently.
Beyond that, the same general good practice applies as with any senior cat: keep an eye on weight and appetite, do not assume a change in either is "just getting older", and mention both to your vet at check-ups rather than waiting for a problem to become obvious.
What we stock
Everything below is in stock with us, priced with delivery worked out, and packed and posted by hand in the UK.
304 Stainless Steel Pet Water Fountain 3.2L
A 3.2L 304 stainless steel fountain that automatically circulates water through a gooseneck spout to keep it fresh. A visible side window shows the water level, so cats and dogs always have clean water.
£36.99
Sensor Cat Water Fountain 2.5L
A 2.5L cat fountain that flows when your cat approaches, keeping water fresh and tempting. A clear level window shows when to refill, and the generous tank meets one cat's needs for several days.
From£43.99
Automatic Cat Water Fountain
A clear automatic pet water fountain with a tap-style spout that circulates fresh, filtered water to encourage your cat to drink. The near-silent pump and large transparent tank let you check water levels at a glance.
£44.99
4L Stainless Steel Pet Water Fountain
A large-capacity stainless steel pet water fountain with an ultra-quiet pump and gentle spout that keeps water fresh and flowing. The circulating stream encourages cats and dogs to drink more and stay hydrated.
From£35.99
Automatic Cat Water Fountain with Filter
A USB-powered water fountain with a near-silent pump and a gentle waterfall spout that encourages cats to drink more. The clear tank lets you check the level at a glance, and the built-in filter keeps water fresh and clean.
£24.99
Stainless Steel Pet Water Fountain
A stainless steel pet fountain that keeps water fresh and flowing to encourage your pet to drink more.
From£31.99
Stainless Steel Pet Water Fountain 3.2L
A 3.2L stainless steel drinking fountain with a quiet gooseneck spout that keeps water circulating and fresh. The clear side window makes refilling easy, helping cats and dogs stay hydrated.
From£39.99
Stainless Steel Pet Water Fountain with Gooseneck Spout
A rounded stainless steel drinking fountain with a rose-gold gooseneck spout that keeps water flowing and aerated. Hygienic and easy to clean, encouraging cats and dogs to drink more often.
From£48.99
Ceramic Cat Water Fountain 3L
A 3L ceramic cat fountain that recirculates and filters water to keep it fresh and flowing.
From£64.99
Self-Refill Cat Water Fountain 3.5L
A quiet fountain with a food-grade stainless steel bowl and a 3.5L reservoir that tops the drinking area up automatically; the maker advises filling to 3L to avoid spills.
£89.99
Ceramic Cat Water Fountain with Stainless Steel Spout
A quiet circulating water fountain with a ceramic basin and arched 304 stainless steel spout. The flowing stream stays fresh and tempting, encouraging cats to drink more throughout the day.
From£37.99
Stainless Steel Cat Water Fountain 3.2L
A 3.2L stainless steel water fountain with dual arching spouts and a water-level window, ideal for multi-pet homes. The ultra-quiet pump circulates fresh water to encourage cats and dogs to drink more.
£39.99
Common questions
- Can I just switch my cat to a renal food myself without a vet?
- It is better not to. A renal diet changes protein and phosphorus levels in ways that suit a cat with reduced kidney function but are not necessarily right for a healthy cat, and the decision to switch usually follows bloodwork rather than a guess. Speak to your vet before changing your cat's diet for this reason.
- What are the signs of kidney disease in cats?
- Drinking and urinating more than usual, weight loss, a reduced appetite and a duller coat are commonly reported, though these can also point to other conditions. Any combination of these is worth a vet visit for proper testing rather than trying to work out the cause yourself.
- Does wet food help cats with kidney problems more than dry food?
- The extra moisture in wet food can help support hydration, which matters for a cat with reduced kidney function, and many vets suggest adding wet food alongside a renal-support dry diet for that reason. Your vet can advise on the right balance for your cat specifically.
- Is a kidney-support diet only for cats who are already diagnosed?
- Generally yes — these recipes are formulated around a specific reduced-phosphorus, adjusted-protein profile that is not necessarily appropriate for a cat with normal kidney function. A general senior recipe is usually the better everyday choice unless your vet has recommended otherwise.
Related
Sources
Written against guidance published by UK veterinary and welfare organisations. Always confirm specifics with your own vet.
Written by Matt Garnett, who runs Giddy Pets and is a lifelong pet owner — not a vet. This is general information, not veterinary advice, and it cannot replace an examination by the vet who knows your animal. How we write these guides.