Jerry Hall thinks cosmetic surgery is "dangerous."
The 58-year-old model claims she has never gone under the knife because she thinks it makes people "look silly" and she is "proud" to be aging naturally.
She said: "Aging gracefully is something I'm proud of, so I don't do anything invasive. I think plastic surgery is dangerous and makes people look a bit silly. There's nothing wrong with a handsome woman with a few lines on her face."
Jerry - who has four children with ex-husband Sir Mick Jagger - hasn't eaten sugar in almost 20 years and thinks sweet treats are "the worst thing in the world."
She said: "I quit eating processed sugar in my 40s to lose the baby weight from my fourth pregnancy. I haven't had it since. I think sugar is the worst thing in the world.
"I cook a lot, and I eat mostly protein and leafy vegetables. I like everything in moderation - beef, lamb, chicken, fish - but I try to avoid carbohydrates. "I don't drink that often, but I enjoy a glass of red wine with dinner."
Jerry also credits her model daughter Georgia May Jagger, 23, for inspiring her to stay fit and healthy.
She told Harper's Bazaar magazine: "I've been juicing quite a bit lately. My daughter Georgia has influenced me, and we've been trying different types of juices."