Ever wonder how celebrities stay so thin and gorgeous all the time? Of course they diet and exercise, but what are their specific secrets!? Luckily, these 11 beautiful starlets have shared their tips on how to stick to diets and exercise regimens.
Kristen Bell

Drew Barrymore

Heidi Klum

Reese Witherspoon

Jessica Alba

Kim Cattrall

Tina Fey

Jennifer Lopez

Diane Sawyer

Mariska Hargitay

Jennifer Garner
