Senior cat food in a multi-cat home

A 13-year-old Abyssinian sharing communal bowls with three young cats — that's a really common setup, but it's one that stops working well once a cat hits senior age. Senior cats typically need higher protein than most people expect, reduced phosphorus to protect kidney function, and more wet food to support hydration, since older cats are notoriously poor drinkers. The right food really does depend on what's going on health-wise though. How old is your Abyssinian exactly, do they have any diagnosed conditions like kidney disease, hyperthyroidism, or joint issues, and what is everyone currently eating from those communal bowls?

That's really useful to know — early chronic kidney disease (CKD) changes the priority quite significantly. The main concern now is phosphorus, because even slightly elevated kidney values mean her kidneys are struggling to process it, and a high-phosphorus diet like standard dry kibble will accelerate the damage over time. Free-choice dry food is probably the worst-case setup for her right now, both because of the phosphorus load and because dry food provides almost no moisture, which kidney cats desperately need. The good news is you caught it early and you have time to make a real difference. Before I suggest a specific food — is she eating well generally, any weight loss, and does she tend to favour wet food or has she always been a kibble cat?

That slight drop in appetite and weight is pretty typical with early CKD — it's worth addressing sooner rather than later because it tends to creep. The transition to wet food is honestly the single most impactful change you can make for her kidneys right now, and most dry-food cats come around once they've tried a few textures and flavours. For her specifically, I'd recommend Royal Canin Renal wet food in pouches. It's formulated with controlled, low phosphorus levels specifically for cats with kidney disease, has higher moisture content to support kidney function, and the protein is high quality without being excessive — exactly what early CKD cats need. It's also palatable enough that even fussy transitioners tend to accept it. The practical challenge you have is separating her feeding from the younger cats. The simplest approach is scheduled mealtimes rather than free-choice — feed the young three their food in one area, put your Abyssinian in a separate room with her Royal Canin Renal, give them 20–30 minutes, then pick everything up. It takes about a week to establish the routine and the cats adapt faster than owners expect.

The young cats are fine on dry food — they don't have the same kidney vulnerability and their hydration isn't a concern the way it is for your Abyssinian. There's no harm in giving them some wet food too, but there's no medical need to change what's working for them. The important thing is just keeping the foods separate so your Abyssinian can't access the high-phosphorus kibble and the young cats aren't eating the renal food (which has restricted nutrients that healthy cats don't need restricted). Once you establish the separate feeding routine, you'll find it's actually quite easy to manage. Royal Canin Renal comes in a variety of flavours and textures — chicken, fish, mixed — so if she's hesitant at first, try a couple of different ones before concluding she won't eat it.

That's a solid plan. One last thing worth mentioning — at her next vet check, ask about a phosphorus binder if her levels haven't improved on the renal diet alone. It's a powder you add to food and it makes a meaningful difference for some cats. But start with the diet change first and see how her follow-up bloodwork looks. Good luck with the transition — Abyssinians are smart cats and she'll likely figure out pretty quickly that the new food is just hers.