Recurrent loose stool or vomiting is not automatically sensitive stomach. Parasites, food intolerance and inflammatory bowel disease all need veterinary investigation.

When choosing food, a single animal protein, a clear meat source and digestible carbohydrates reduce the number of variables.

Fibre structure affects stool quality: soluble fibre can help firmness, but too much may increase gas, so watch the individual response.

Transition over one to two weeks, logging stool score and appetite. Persistent abnormality means returning to the vet.