When to switch kitten to adult cat food

At 10 months your Domestic Shorthair is in that interesting window — still technically a kitten, but close enough to adulthood that the switch is worth planning now. Cats are obligate carnivores with precise nutritional needs, and kitten food is calorie-dense by design; keeping a cat on it too long can tip them toward unnecessary weight gain as their growth rate slows. Wet food is also genuinely important here — cats have a low thirst drive, and long-term hydration is one of the biggest factors in kidney health. Before I point you toward something specific: is your cat male or female, have they been neutered, and are they currently on wet food, dry, or a mix of both?

Good setup, and neutered females are actually the ones most at risk of weight creep once growth slows — so timing this switch well matters. At 10 months she's about two months away from the standard 12-month transition point for Domestic Shorthairs. I'd suggest starting to move her across now, gradually, rather than waiting. One thing I'd gently push back on: the free-feeding of dry biscuits. It makes it hard to track intake, and dry food does very little for hydration. If you can move toward two or three measured wet meals a day, that's genuinely better for her long-term kidney health. Is she currently on any particular brand, and is she a picky eater?

Felix is fine as a starting point but it's not a food I'd stay on long-term — the meat content is low and the ingredient quality reflects the price. The good news is that a non-fussy cat gives you real options. My recommendation for making the switch to adult food is Animonda Carny Adult — it's a German brand, genuinely high meat content (often 70–80%), no cereals, and it comes in a good variety of single-protein options like beef, chicken, and turkey. It's well-suited to adult cats from around 12 months, but at 10 months you can start mixing it in now. I'd do about 25% new food to 75% kitten food for the first week, then shift the ratio gradually over two to three weeks. She should take to it without issue given she's not fussy.

You don't have to cut it out completely, but I'd reduce it significantly. A small amount of good-quality dry food as a top-up is fine, but I'd stop leaving it down all day — portion it instead, maybe a small amount at one meal alongside the wet. The bigger shift is moving her primary nutrition to wet. For a neutered female who's done growing, keeping the bulk of her diet as wet food is one of the most effective things you can do to protect her kidneys over the next decade. Animonda Carny comes in multipacks so you can try a few proteins before committing to a bulk order — worth doing with any new food even if she's not picky.

Perfect. Start the mix now rather than waiting until exactly 12 months — the gradual transition is more important than the precise date. Keep an eye on her weight over the next couple of months as her growth levels off, and if she starts looking a little rounder, trim the portions before you assume there's an underlying issue. She sounds like a straightforward, healthy cat — you're just at the right moment to set her up well for adulthood.