Dogs have a very sensitive digestive system which can be put under strain in a number of different ways gastro intestinal complaints are common in dogs and can manifest themselves as chronic and acute diarrhoea and vomiting this can make long term use of dietetic dog food unavoidable royal canin gastro intesinal low fat is a complete dry kibble with a recipe that has been designed to help dogs that have a tendency to be overweight or that need a lower fat diet the lower fat content can help