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
A 15-year-old Ragdoll losing body condition is something I want to help you get right — because large-breed cats like Ragdolls have more muscle mass to maintain than average cats, and losing it at this age is a real concern. Senior cats generally need more protein than younger cats, not less, plus reduced phosphorus to protect the kidneys, and wet food is usually a big help for hydration and palatability. The right food really does depend on what else is going on with her though. How old is she exactly, does she have any diagnosed conditions like kidney disease or hyperthyroidism, and what are you currently feeding her?
She's just turned 15. No kidney disease diagnosed yet — vet said her bloods were okay last year. She's got mild arthritis in her back legs. Currently on a dry food, a supermarket senior brand. She's just looking bonier lately.
inparticular.ai
That's really useful. The dry food is likely part of the problem — it's low in moisture and senior supermarket dry foods often cut protein quite heavily, which is the opposite of what an aging cat needs. For a large-framed Ragdoll who's losing muscle condition, you want a high-protein wet food as the main diet, with ingredients that support joints too given the arthritis. Can I ask — is she eating well, or has her appetite dropped? And does she have any trouble chewing?
Her appetite is decent, she seems to want to eat. No trouble chewing as far as I can tell. She just doesn't seem to be keeping weight on.
inparticular.ai
Good appetite but not holding condition on a dry senior food — that's a really common pattern and it usually comes down to protein quality and digestibility, not just quantity. My recommendation for her is Royal Canin Ageing 12+ in gravy pouches. It's specifically formulated for cats over 12, with high-quality digestible protein to help rebuild and maintain muscle in older cats, a controlled phosphorus level that's kind to kidneys as a preventive measure, and it comes as a soft wet food which will be easier for her arthritic body to process and much better for hydration than dry. The texture is gentle, the palatability is very high, and it's designed for exactly the kind of lean senior cat you're describing. I'd switch her fully off the dry food if she'll accept it, or at minimum make wet food 80% of her diet.
That makes sense. Should I be adding anything else, like a joint supplement?
inparticular.ai
It's worth discussing with your vet, but if you want to add something, a fish oil supplement — a small amount of salmon oil added to food — can help with both joint inflammation and coat and skin condition, which often suffers in older cats too. Yumega Cat is a good one available in the UK. But honestly, getting the base diet right first will make the biggest difference. Once she's on a high-quality wet food with proper protein levels, you may find her condition improves noticeably within six to eight weeks without needing to add much else.
Great, I'll try the Royal Canin Ageing 12+ pouches. Thank you.
inparticular.ai
I think you'll see a real difference. Give it six to eight weeks and keep an eye on her muscle coverage over her spine and hips — that's the best home indicator of whether it's working. And do book a vet check if her appetite drops or she loses weight quickly, just to rule out anything like hyperthyroidism, which is common at this age and very treatable. Good luck with her — 15 is a wonderful age for a Ragdoll.