updated 01/27/2011 AT 5:00 PM ET
•originally published 01/28/2011 AT 12:35 PM ET
Kim Cattrall is famous for her svelte figure, but the Sex and the City star admits it’s not easy staying slim – especially as she ages.
“I’ve been dieting my whole life because I have a tremendous appetite,” she said recently at a brunch at Butter in New York to announce her new role as the spokeswoman for I Can’t Believe It’s Not Butter.
Luckily Cattrall, 54, says that she grew up with a healthy attitude about food and exercise. “This generation of women that I’m in, we have been brought up with Jane Fonda workout tapes and fresh air is good for you and exercise every day and drink eight cups of water…. and it’s paid off at this time of my life,” says the actress. “It gets harder because parts of my body don’t want to be on a diet, but at the same time it gets me up in the morning to work out.”