"I don't really know about weight or age. Weight was never something that was part of my time and I worked everyday. I have never struggled with weight and I think food is pleasurable," Campbell told people.com.
She is 42, and considers herself blessed to be still working in such a competitive industry.
Campbell believes models need to be prepared to stand out and get noticed as they have a lot of competition from actresses, when it comes to landing campaigns and magazine covers.
"You are up against a lot of girls going for the same job, and they only want a selected few, so you really do have to have something outstanding to catch their eye."
"In general, the world is more competitive these days and there is no real preparation, so it's definitely harder to book the cover of a magazine. It's definitely harder to book in advertising, because they don't just use models anymore," she said.