Royal canin x small ageing 12 is a specialised dry dog food for dogs of very small breeds weighing under 4 kg aged 12 years or more at 12 small breed dogs have reached a respectable age and will be suffering from some symptoms of ageing reduced appetite digestion issues and problems with heart kidneys and teeth are some very common problems for small ageing dogs to keep your dog in shape for as long as possible feeding the right diet is of crucial importance royal canin x small ageing 1