Divergent star Shailene Woodley recently revealed that one of her favorite things to eat, surprisingly, is clay.
While on The Late Show Monday, Woodley revealed to David Letterman that she likes to eat clay and that it actually provides health benefits, according to Cambio.
“I do eat clay, yeah. Do you?” she asked Letterman. “Clay is one of my favorites because if you look at indigenous cultures around the world, they eat clay almost daily.”
Woodley went on to explain that clay binds to and helps dispose of other materials in the body, such as those that aren’t so good for you, such as toxins and hard metals.
“Have you heard of Metamucil?” Letterman joked, unable to hide the astonished look on his face, reports PEOPLE.
Woodley revealed that she orders her clay from a company called Mountain Rose Herbs and eats one teaspoon a day, in addition to using it to make her own toothpaste.
“I’m not joking, look it up, it’s really interesting,” she said.
Watch the entire clip below.