One of the reasons why maturing dogs often lose their appetite, is the fact that they lose their sense of smell. Royal Canin Mature + 8 Canine Health Nutrition Canned Senior Dog Food is a wet food designed to wet your ageing dog’s failing appetite. This tasty food for dogs weighing less than 10kg and older than 8 years will appeal to your friend’s ailing olfactory sense. It will also support healthy kidneys, because it contains less phosphorus than other formulations. The x-small wet food formula complements a Royal Canin Mini dry food diet.