10/30/2010 09:35 am ET | Updated May 25, 2011

Portia de Rossi: I Once Ate 300 Calories A Day, Weighed 82 Pounds (VIDEO)

Portia de Rossi sat down with Oprah for an emotional interview about her anorexic past to air Monday.

"It wasn't that I was proud of it," she said. "But it was certainly a recognition for my self control. I definitely had some pretty amazing willpower to get down to 82 pounds. And that's what I was holding on to. I didn't think about anything else."

Portia reveals that she ate only 300 calories a day at the height of her disorder, and E! reports that she attributes her food issues to anxiety over being gay.