In an interview with ABCs Robin Roberts, the 18-year-old singer-actress said childhood bullying contributed to her eating disorder.

“I literally didnt know why they were being so mean to me,” she said of her childhood tormentors. “And when I would ask them why, they would just say, Well, youre fat. I was bullied because I was fat. And then a few months later I developed an eating disorder, and thats kind of what Ive been dealing with every since.”

Demi Lovato: “I Was Bullied Because I Was Fat” – Celebrity News – UsMagazine.com