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
It sounds like the senior food you tried caused some real digestive upset — excessive gas is often a sign that something in the formula isn't agreeing with your cat, usually fermentable fibres, certain plant proteins, or ingredients like peas and legumes that have become common in senior blends. Senior cats generally do best with higher protein (not less), reduced phosphorus to support kidney health, and plenty of wet food for hydration — but with a gassy cat, the ingredient list matters as much as the life-stage label. How old is your Devon Rex, do they have any diagnosed health conditions, and what were you feeding before the switch?
She's 11, no diagnosed conditions yet — vet said kidneys look fine at her last check. I had her on Royal Canin Ageing 12+ dry but switched to a senior wet food a few months ago and the gas got really bad. No other symptoms, she's eating fine and seems happy enough, just very gassy.
inparticular.ai
That's really helpful. The fact that she was fine on the Royal Canin dry and the gas came on with the wet food switch points pretty clearly to something in that specific wet formula — most likely fermentable fibres, legume-based thickeners, or a higher vegetable content than her gut is used to. At 11 with healthy kidneys she doesn't need a therapeutic diet, just a simple, highly digestible wet food with clean ingredients. Can you tell me which wet food you switched to? And does she have any food sensitivities or texture preferences?
It was one of the Whiskas senior pouches. She doesn't have known allergies. She seems fine with both pâté and chunks, not fussy about texture.
inparticular.ai
Whiskas senior pouches tend to contain quite a bit of cereal, sugar, and various gelling agents — exactly the kind of ingredients that ferment in the gut and cause gas, especially in older cats whose digestion is a bit less robust. For a healthy 11-year-old with no kidney issues, I'd move her onto Animonda Carny Adult. It's a straightforward meat-based wet food with very short, clean ingredient lists — mostly named meats, no cereals, no peas, no legumes, minimal plant content. It's highly digestible, higher in protein than most senior-labelled foods, and the lack of fermentable carbohydrates is exactly what tends to resolve this kind of gas problem. The variety packs on Amazon UK give you a good range to find her favourites without committing to a single flavour. I'd give it two to three weeks and you should see a clear difference.
That sounds really promising. Should I be worried about it not being labelled as 'senior' specifically? And do I phase it in gradually?
inparticular.ai
'Senior' on cat food is mostly a marketing label — there's no legal requirement for what it has to contain, and many senior-labelled foods are actually lower in protein than adult foods, which is the opposite of what ageing cats need. Animonda Carny is nutritionally complete for adult cats, and since your girl has a clean bill of health, it's absolutely appropriate. Yes, phase it in over about a week — replace a quarter of each meal with the new food and build up gradually. This is especially worth doing given her gut has already been unsettled; a slow transition gives her digestive system time to adjust without triggering another flare.
Perfect, thank you. I'll order a variety pack and start the transition this week.
inparticular.ai
Great choice. If the gas clears up but you want to reintroduce some dry food alongside it — Devon Rex can do well on a mixed diet — just keep the dry option simple and grain-free too, and make sure she's drinking well. At 11, hydration starts to matter more, so the wet food base is a really sensible move regardless. Hope she's much more comfortable soon.
