The actress has opened up about working hard to keep her figure and playing a sex siren in her fifties, reported Daily Mirrror.
The actress, who played Samantha Jones in 'Sex And The City', said, "I joke that I have been on a diet since 1974, which is basically true. I like to eat, and my body type is not naturally this thin, especially at this age. I have a big appetite."
But she hopes that working out every other day and minimising stress will allow her to keep playing sexy characters as a sexagenarian.
Kim, who will star at London's Old Vic in Sweet Birth Of Youth from June, split from Canadian chef Alan Wyse in 2009.