In order to keep a cat healthy royal canin maintain that a cats diet should take into account all parameters of life such as age breed life style physiology and individual circumstances royal canin ageing 12 for cats is based on royal canins commitment to the highest quality and includes the macro nutrient profile instinctively preferred by older cats from 12 years royal canin ageing 12 cat food provides a diet specifically formulated for senior cats over the age of 12 the specific