Heidi Klum and dermatologists agree that you can indeed be too thin when it comes to a wrinkle-free face.

Klum recently offered advice on keeping a youthful appearance: keep a little weight on to prevent the face from becoming drawn, the New York Daily News said Saturday.

Klum said in an interview in Self: "It is always better to have a little meat on your bones. When you are just muscle, you end up being gaunt in the face, and that makes you look older by five or 10 years."

New York dermatologist Macrene Alexiades agreed, telling the newspaper that people with a little body fat do have a more youthful appearance because it fills in the line on the face.

Other dermatologists said that didn't mean people should pack on the pounds, and advised that yo-yo dieting was particularly hard on the face.