Hayden Panettiere revealed some new private details of her youth in Women's Health magazine.

The Nashville star said she struggled with body dysmorphia as a teen and that a tabloid publishing a photo of her backside bothered her.

"I was mortified, it gave me such body dysmorphia for so long. But I remember reminding myself that beauty is an opinion, not a fact. And it has always made me feel better."

Hayden said she is very particular about her diet telling the mag,

"Eating healthy is a constant battle. I love chips, I find when I'm overly concerned about what I eat, I stress out my body and put on weight."

But stressing she's clearly not -- if you've seen any of the promos for Nashville.