Cat food for sensitive stomachs

A Tonkinese with chronic gas who's scrapping for food with two younger cats — that's a combination worth unpicking, because the stress of competitive feeding can actually make digestive symptoms worse on top of any underlying food sensitivity. Digestive sensitivity in cats is often driven by food intolerance rather than a true allergy, and limited-ingredient or novel-protein diets tend to work best. To point you in the right direction: is the gas the main symptom, or are you also seeing loose stools or vomiting? And what is he currently eating?

That makes a lot of sense. Mixed poultry formulas often combine several protein sources — chicken, turkey, duck — and for a cat with a sensitive gut, that variety is exactly the problem. When you add in the fact that he's likely eating too fast under social pressure, you get fermentation in the gut and persistent gas. How long has the gas been an issue, and has anything changed recently — new food, new feeding routine, or any vet visits?

The timing lines up almost perfectly with the switch, which strongly suggests the multi-protein formula is the culprit. At eight years old he's also past the point where his digestive system handles novel combinations as easily as a younger cat might. One more question before I recommend something specific: do the younger cats have any dietary restrictions, or are you free to move everyone onto the same food if it suits them?

Perfect — that actually simplifies things considerably. My recommendation is Royal Canin Sensitivity Control wet food in duck and rice. It uses a single novel protein source (duck) that most cats haven't been sensitised to, paired with easily digestible rice rather than wheat or mixed grains. It's formulated specifically for cats with food-triggered digestive issues, and the consistency of a single-protein diet tends to reduce gas significantly within two to three weeks. Because all three cats can eat it safely, you also remove the incentive for your Tonkinese to raid the others' bowls — everyone gets the same thing. Feed him in a separate room or use a microchip feeder to slow him down and reduce the competitive eating, which will help the gut further. Transition over seven to ten days by mixing increasing amounts with his current food to avoid a flare from switching too fast.

Honestly, if separating rooms at mealtimes works for your household, that's sufficient and costs nothing. A microchip feeder is worth it if you can't supervise every meal or if the younger cats get into his bowl while you're not watching — it also slows down fast eaters on its own, which is a genuine bonus for gas. But the diet change is the engine here. Get the food right first and see how much settles on its own. Most owners find the gas improves dramatically within three weeks on a single-protein food, and a calmer cat at the bowl usually follows.