Even when she’s on the road with Sugarland, Kellie Pickler maintains her figure despite being offered all that great Southern food.

“I’ve become more self-conscious about what I eat now,” the American Idol alum tells me. “I still eat some sweets. I exercise sometimes, not regularly, but I think 80% of the whole weight thing is based on what you eat. If you eat healthy, that’s the main thing because it all comes out at the end. I don’t really have any routine. I watch what I eat sometimes, but I don’t have a daily thing that I do yet. I need to start one. I don’t know. I guess I’m 22, so I’m still young. I’ll rely off of that until the metabolism … I start losing it.”

Her self-titled sophomore album is in stores now.