Cat food for sensitive stomachs

So you've already tried a limited-ingredient salmon food and it didn't sort things out — that's actually useful information, not a dead end. Digestive sensitivity in cats is usually food intolerance rather than true allergy, and salmon is common enough in cat food that some cats have already built up a reaction to it. The key now is finding a genuinely novel protein — something your Birman has never eaten before. To help narrow it down: what symptoms are you still seeing, how long has this been going on, and has your cat eaten anything with fish or chicken regularly over the years?

That history explains a lot. If he's had chicken and fish consistently for six years, his digestive system has had plenty of time to develop a sensitivity to either — or both. Twice-weekly vomiting plus loose stools for four months is a clear pattern, not just an upset stomach. Have you had a vet rule out anything like IBD or hyperthyroidism? At six years old those are worth excluding, but assuming he's been checked out and this is dietary, the fix is going a genuinely novel protein — something like rabbit, venison, or duck that he simply hasn't encountered before.

Perfect — that's exactly the right direction, and it gives us a clear path. For a true elimination trial you need a single novel protein with minimal other ingredients, and you need to stick with it exclusively for at least six to eight weeks. My recommendation is Canagan Grain Free Cat Food in the Country Game variety — it's rabbit and game bird based, genuinely grain-free, and has a short, clean ingredient list. No chicken, no fish, no common allergens. It's available in both dry and wet formats, and for a sensitive stomach I'd suggest starting with the wet food to keep things gentle on his digestion. The key is strict — no treats, no toppers, nothing else during the trial period.

Good question, and the answer is still gradual — even though it feels counterintuitive when he's already uncomfortable. A sudden switch can cause its own bout of loose stools that muddles the picture. Do a seven to ten day transition: roughly 25% new food mixed in for the first few days, 50% by day four or five, 75% by day seven, then fully switched. Once he's fully on the Canagan Country Game, that's your day one of the elimination trial. Keep a simple log of vomiting frequency and stool quality — it makes it much easier to see whether things are actually improving.

That's exactly the right approach. Two months of strict elimination with a log will give you a genuine answer. If vomiting drops to once a fortnight or less and stools firm up, you've found your culprit protein group. If there's no improvement at all after eight weeks, it's worth going back to your vet to discuss a hydrolysed protein prescription diet as the next step — but try the Canagan Country Game first. Good luck with him.