Reese WitherspoonEver wonder how celebrities tone up so quickly? Well, PopEater got the inside scoop from celebrity trainers and discovered the workout secrets that keep Hollywood's hottest stars in shape. As one of Tinseltown's most sought-after trainers, Michael George has helped sculpt the physiques of Reese Witherspoon, Toby Maguire, Julianne Moore, Christian Slater and Dennis Quaid. Here are his tips on how you can work your way to an A-list body.

► Diets don't work. They never have and they never will. Choose a way of eating that you can adhere to for life, one that supports weight loss and management -- like the Mediterranean or Zone nutrition plans.

► Eat three light meals and two small snacks daily to support a high-functioning metabolism.