Older cats often lose their appetites as they get older but owners can try to boost their desire for cat food by warming it up.
Vet Joe Inglis, writing for the Metro, explained to a reader whose 23-year-old cat's appetite had become erratic that this behaviour is quite normal.
He said that elderly cats often have issues with their appetites because they lose their sense of smell with old age.
Because of this, the cat often finds food less appetising. He wrote: "You can help by offering really smelly food, such as fresh pilchards. Also try warming her food up a little as this releases more aromas and should tempt her to eat."
However, the vet also warned that loss of appetite can be a sign of more serious problem, so Dr Inglis advised that if smelly or warm food does not help, you should take the cat to the vet to check for other problems.