The mother of one said she instead eats the food in "moderation", reported E!Online.
"I think eating anything you want as long as it's in moderation is good," she said.
The 41-year-old star - who has a nine-month-old daughter Esmeralda with her long term partner Ryan Gosling - also has a fairly relaxed approach to exercise and refuses to go to the gym every day.
"I do cardio and light weights at least three times a week," she said.
The brunette beauty said she keeps her skin healthy by washing it with witch hazel and uses coconut oil as makeup remover.
"Drinking warm water and lemon every morning before my coffee and staying hydrated all day long really helps me stay healthy and helps my skin look its best," she added.