This is a specific conversation about Senior cat food — what they need as they age — ask about yours and get one honest answer for your exact situation.
inparticular.ai
Taking in a 12-year-old stray and giving them two more good years already — that's genuinely wonderful. Senior cats generally do best with higher protein than people expect, reduced phosphorus to protect the kidneys, and plenty of wet food for hydration. But the right food really depends on what's going on health-wise, and with a rescue who came in as a stray, there's often a lot of unknowns. How old is your Siamese now, have you had any vet bloodwork done since you took them in, and what are you currently feeding?
She's 14 now, so we've had her about two years. The vet did bloods when we first got her — kidneys were borderline but not in full failure, and they said to keep an eye on it. She's been on a mainstream senior dry food since we got her, Felix Senior I think. She eats okay but drinks very little.
inparticular.ai
That's really helpful. Borderline kidney values plus very low water intake on dry food is a combination worth taking seriously — dry food is typically only about 10% moisture, which puts quiet pressure on kidneys over time. Switching to a quality wet food would be my first move here. Given her kidney history, I'd also look at phosphorus levels, not just protein. Can I ask — does she have any digestive sensitivity, or is she generally a good eater who tolerates food changes reasonably well?
She's always eaten fine, no vomiting or anything. A bit fussy occasionally but generally eats what she's given. She did lose a little weight over the past year, the vet said it was expected at her age but to monitor it.
inparticular.ai
Good — a cat who eats reasonably well and has no gut issues is easier to transition. The weight loss is worth keeping an eye on, but that's actually another reason to move away from dry food; wet food tends to be more palatable and calorically accessible for older cats who may be losing muscle mass. For a 14-year-old with borderline kidney results and low fluid intake, I'd recommend Royal Canin Renal wet food in the pouch or tray format. It's specifically formulated with controlled phosphorus to reduce kidney workload, has good protein quality, and the moisture content will make a real difference to her hydration. It's available on prescription from your vet or over the counter on Amazon UK — given her bloods, it's worth mentioning to your vet too so they can track whether her kidney values improve.
Does it matter that we don't know what she ate as a stray for those two years before we got her? Could her kidneys already be damaged from poor nutrition back then?
inparticular.ai
Honestly, yes — two years as a stray at age 10–12 likely means inconsistent nutrition, possible dehydration, and whatever she could catch or scavenge. That could absolutely have contributed to those borderline kidney values. But here's the thing: you can't undo the past, and kidneys in early decline respond really well to dietary management. Controlled phosphorus, good hydration, and quality protein are the three levers you have, and Royal Canin Renal addresses all three. The fact that her kidneys were only borderline two years ago, and she's still eating and maintaining herself at 14, suggests she has decent resilience. The switch to wet food now is exactly the right call.
That's reassuring. Should I transition gradually or just switch her over?
inparticular.ai
Gradually is always safer with cats, especially seniors who can be set in their ways. Start by mixing a small amount of the Royal Canin Renal wet food alongside her current food — maybe 20% new, 80% old — and increase the wet proportion over 7 to 10 days. Because she's going from dry to wet, you might find she takes to it quite quickly; wet food is usually more enticing. If she refuses it at first, try warming it slightly to bring out the aroma. And do loop your vet in — with her kidney history, it's worth doing a follow-up blood panel in three to six months to see if the dietary change is making a measurable difference.
