BARF or raw feeding of dogs and cats is enjoying increasing popularity. This can be explained not least by the fact that many owners want their animals to be fed "naturally", based on the original diet of the dog or cat (BARF = "Bones And Raw Foods"). It is the task of the veterinarian to inform about possible risks and to give adequate hints for a sufficient energy and nutrient supply of the animal.

Part I  covers nutritional differences of dogs and cats, basical facts on digestive physiology and influences on digestive processes.