Jessica Simpson Thinned Out on New Mag Cover?

Credit: Lucky Magazine; Bryan Bedder/Getty Images

Here's the skinny.

Jessica Simpson looks super slim on the new cover of Lucky magazine -- especially compared to photos of her taken in July.

Despite her dramatically svelter appearance on the mag's cover, Simpson, 30, talks about "coming to terms" with "some serious body issues" in the issue.

PHOTOS: Jessica without retouching, makeup

"We all obsess over looking like the perfect Barbie type, and that's not always what's beautiful. It's about making peace with yourself," says the Price of Beauty star, who even went on a super strict detox diet for her new beau, Eric Johnson. See the top 10 timeless exercises.

PHOTOS: Stars who date athletes

Simpson says her VH1 reality show influenced her fashion sense.

 "Morocco was a huge influence on me when it comes to jewelry and fashion," she says. "You can't help but want to buy caftans when you're there!"