Senior cat losing weight despite eating

Weight loss despite a normal appetite in a 10-year-old cat is actually one of the most common things I hear about — and it's worth taking seriously. Senior cats often lose the ability to properly digest and absorb protein as they age, a condition called senior-onset digestive decline, which means they can eat the same amount but get less nutrition from it. The fix is usually a higher-protein, highly digestible food rather than just more of what they're already eating. Before I point you in the right direction — has your cat had a vet check recently? Specifically, has anyone ruled out hyperthyroidism or kidney disease? Both are very common at this age and would affect which food is the right call.

Good — clean bloods are genuinely reassuring, and bright eyes plus a good appetite are positive signs. What you're describing sounds like sarcopenia, which is age-related muscle loss. It's not a disease, it's just what happens as cats get older, but the right food makes a real difference. What are you currently feeding her, and is it wet, dry, or a mix of both?

That's a very common setup, and the dry food is likely where the issue lies. Most supermarket senior dry foods actually reduce protein to protect kidneys — which made sense as old advice but we now know healthy senior cats need more protein, not less, to maintain muscle. The wet food in the evening is good for hydration, but one small pouch isn't enough to shift the balance. I'd suggest flipping the ratio and upgrading the protein quality across both. For the wet food, switch to something with a high named-meat content and no grain fillers. For the dry, if she insists on having some, go for something like Royal Canin Ageing 12+ dry, which is specifically formulated for muscle maintenance in older cats. But the single product I'd lead with is Applaws Senior Cat Wet Food — it's around 75% chicken breast, very low carbohydrate, and genuinely high in digestible animal protein. That combination is exactly what a muscle-losing senior cat needs.

Yes, genuinely — and it's one of those cases where the ingredient list tells the whole story. Most supermarket pouches list meat derivatives or cereals as the primary ingredients, which means the actual animal protein content is low and the digestibility is poor. Applaws Senior lists chicken breast as the first and dominant ingredient, with no grains and no fillers. For a cat whose gut is less efficient at extracting nutrition than it used to be, that higher bioavailable protein means more of what she eats actually becomes usable fuel for muscle. You should start seeing a difference in condition within 6 to 8 weeks if you get the portions right — aim for her to be eating Applaws as the main meal, two to three times a day, with the dry as a small top-up rather than the other way around.

At 10 with clean bloods, food really can turn this around — 10 is still relatively young for a cat, and sarcopenia responds well to dietary protein if you catch it before it becomes severe. I would say: give the new food 8 weeks, then do a simple body condition check at the vet (it's quick and usually free). If she's still losing despite the diet change, go back for more bloodwork — some conditions like early intestinal disease or subtle hyperthyroidism can escape an initial panel. But honestly, the most common outcome with a bright, eating cat at this stage is that better food does the job.