Sensitive stomach cat food in a multi-pet home

Digestive sensitivity in cats is often down to food intolerance rather than a true allergy, and limited-ingredient or novel-protein diets tend to work best — they reduce the number of potential triggers your cat's gut has to deal with. Before I suggest anything specific, it would help to know: what symptoms is your Chartreux showing (vomiting, loose stools, or something else), how long has this been going on, and what are you currently feeding them?

That's a really common and genuinely frustrating combination — a sensitive cat who grazes, and a dog who treats the cat bowl as a bonus snack station. The grazing itself can actually make sensitive-stomach issues worse, because intermittent eating keeps the gut in a low-grade state of flux. Royal Canin Sensitive Digestion isn't a bad food, but it's not a limited-ingredient diet — it still contains multiple protein sources that could be contributing. Before I recommend something, can you tell me a bit about the dog? Breed or rough size, and does she have any dietary restrictions of her own? I'm asking because the most practical solution here usually involves a feeding setup that works for both animals.

A healthy Lab with no restrictions actually makes this easier to solve. The go-to fix for this situation is a microchip-activated cat feeder — it only opens for your cat's chip and stays locked when the dog approaches. That means you can move to scheduled meals instead of grazing, which alone often improves a sensitive cat's digestion significantly. Paired with that, I'd switch his food to Purizon Single Meat Adult Cat — it uses a single animal protein source (you can choose duck, chicken, or fish), no added sugars, and no grains, so it's genuinely limited-ingredient in a way Royal Canin Sensitive isn't. The combination of controlled meal times and a cleaner diet is usually enough to calm things down within four to six weeks.

For the feeder, the SureFlap SureFeed Microchip Pet Feeder is the one I'd point you to — it's reliable, easy to programme, and specifically designed so that larger snouts can't lever it open. It works off your cat's existing microchip so no collar tag needed. On Purizon Single Meat: the ingredient list is clean — the main thing to know is that it does contain some plant-based fibre from things like chicory and apple, which is fine for most cats and actually supports gut motility. The only caveat is to transition slowly, about ten days mixing old and new food, because a sudden switch on a sensitive stomach will cause exactly the kind of flare-up you're trying to avoid.

Exactly right — and you'd be surprised how often that's the case. Slow the transition, stick to scheduled meals once the feeder arrives, and give it six weeks before judging the new food. If the loose stools haven't improved by then, it's worth a vet visit to rule out anything like IBD or a parasite, but most cats in this situation come good once the grazing stops and the diet simplifies. Good luck with him.