There is a myth that cats are obligate carnivores- in other words they can only eat protein. This is not true of our domestic felines. According to Dr. Verbrugghe cats are adapted to have a moderate carbohydrate diet. Contrary to what a lot of people think, it has been shown that replacing fat with a carbohydrate actually reduces the caloric density of foods helping reduce the risk of obesity and associated problems like diabetes. Good high quality fiber and carbohydrates are important for cat health including that of their guts and they should be feed a well balanced diet. Cats are not meat eaters only and healthy diets contain carbohydrates which improve cat health and longevity.
Canadian Vet Magazine May/June 2013 Vol 8 No 3