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 16-year-old cat struggling to hold body temperature is something I want to help with carefully — that combination of age and heat regulation difficulty is a real signal that their metabolism and muscle mass need proper support. Senior cats actually need more protein than younger adults, less phosphorus to protect ageing kidneys, and plenty of calories from quality fat and protein rather than fillers. The right food makes a genuine difference here. How old is your cat exactly, do they have any diagnosed health conditions like kidney disease or hyperthyroidism, and what are you currently feeding them?
She's 16, a domestic shorthair. The vet hasn't flagged kidney disease but said she's losing muscle and her thyroid is fine. She's on a standard supermarket senior dry food at the moment. She feels cold to the touch a lot and has lost a fair bit of weight over the last year.
inparticular.ai
That picture makes a lot of sense — muscle loss and feeling cold often go hand in hand in very old cats, and dry food is almost certainly making things harder. Kibble is calorie-dense by weight but cats at this age often can't absorb nutrients from it as efficiently, and the low moisture content means they're likely mildly dehydrated, which compounds everything. What you really need is a high-calorie, high-protein wet food with good digestibility. Is she eating well in terms of appetite, or has that dropped off too?
Her appetite is actually okay, she finishes her meals. She just doesn't seem to be keeping the weight on. I'd like something more calorie-dense that she can actually use.
inparticular.ai
Good — a maintained appetite at 16 is a real advantage, it means she can actually take on more if you give her the right food. My recommendation is Royal Canin Ageing 12+ in gravy pouches. It's formulated specifically for cats over 12, with high-quality protein to support muscle maintenance, controlled phosphorus levels that are gentle on kidneys even without a diagnosis, and it's wet so she'll get proper hydration alongside the calories. The texture is easy to eat for older cats and the palatability tends to be high — important when you want her eating enough. I'd move her fully off the dry food and feed three to four small pouches a day rather than two larger meals. That keeps her metabolism ticking and makes it easier for her digestive system to extract what it needs.
That sounds good. Should I add anything alongside it, or is that enough on its own?
inparticular.ai
For most cats in her situation, Royal Canin Ageing 12+ as her main diet is enough — it's nutritionally complete. The one thing worth asking your vet about is an omega-3 supplement, specifically EPA and DHA from fish oil. There's decent evidence it helps with muscle preservation in ageing cats and it can support circulation, which ties into feeling warmer. A small liquid fish oil added to her food a few times a week is low-risk and often helpful. But get the food transition sorted first — that will make the biggest difference. Move from dry to wet over about a week by mixing them, so her gut adjusts.
Perfect, that's really helpful. I'll order the Royal Canin and ask about fish oil at her next vet check.
inparticular.ai
That sounds like a solid plan. At 16 with a good appetite, she's got plenty going for her — the right food can genuinely shift how she feels day to day. Keep an eye on her weight every couple of weeks if you can; even just picking her up and noticing how she feels gives you useful information. Hope she starts feeling warmer and filling out a bit soon.
