Cat food for sensitive stomachs after illness

A nine-year-old cat managing both a sensitive digestive system and a recent respiratory infection is a situation worth thinking through carefully — illness and antibiotics can really knock gut flora around. Digestive sensitivity in cats is usually down to food intolerance rather than a true allergy, and limited-ingredient or novel-protein diets tend to work best for getting things settled. Before I point you in a clear direction: what symptoms are you seeing — vomiting, loose stools, something else? How long has the sensitive stomach been an issue, and what is she currently eating?

That makes a lot of sense. Antibiotics do a number on the gut microbiome, so what was a manageable sensitivity before is often exacerbated afterwards. The bigger picture here is two things happening at once: an underlying intolerance — almost certainly to something in that standard chicken pâté, whether it's the protein source, additives, or thickeners — and a temporarily disrupted gut from the medication. At nine she's also a senior cat, which means her digestive system is naturally a bit less resilient than it once was. Can I ask — has she ever been tried on a different protein, something like duck or venison? And is she eating well in general, or has her appetite been affected too?

Good that her appetite is holding up — that's a positive sign and makes the transition easier. Given everything — months of loose stools, recent antibiotic use, and a lifetime on chicken and fish — I'd go with Royal Canin Sensitivity Control in duck and tapioca. It's a genuine limited-ingredient diet: duck is a novel protein for her, tapioca replaces common grain fillers, and it's formulated specifically to reduce digestive load. It also supports gut barrier function, which matters a lot right now post-antibiotics. It comes as both wet and dry, and I'd suggest starting with the wet pouches to keep her well hydrated while she's still recovering. You should see a meaningful improvement in stool consistency within two to three weeks if food intolerance is the core issue. One thing to note: introduce it gradually over seven days, mixing increasing amounts with her current food, to avoid adding further digestive upset during the switch.

Yes, honestly that's a smart instinct. A feline-specific probiotic for four to six weeks post-antibiotics can genuinely help restore gut flora and may speed up how quickly her stools firm up. Purina Pro Plan Veterinary Diets FortiFlora is the one most often recommended by vets for exactly this scenario — it comes in daily sachets you just sprinkle on food, cats tend to accept it well, and it has good evidence behind it. It pairs naturally with the Royal Canin Sensitivity Control rather than complicating anything. Once her gut has had time to recover — six weeks or so — you may not need to continue it, though some owners of sensitive cats keep it going longer term at a reduced frequency.

Definitely. If you've done a proper gradual transition, been on the new food for three to four weeks, and stools are still loose or she's losing weight or becoming lethargic, that warrants a vet visit — at that point it's worth ruling out something like inflammatory bowel disease or a parasitic cause, both of which are more common in older cats. But given the clear history here — intolerance plus antibiotic disruption — the dietary change plus probiotic is a very reasonable first step, and most cats in this situation do improve. Good luck with her recovery.