Most Shocking Celebrity Weight Loss

Whether they’re slimming down to play a perfectionist ballerina or bulking up to a gladiator-esque stature, celebrities often need to change their shape drastically—and on short notice—to ace roles (or meet the expectations of a critical public). he problem? This type of dieting can be bad for your health.
Crash diets can weaken your immune system, leaving you more vulnerable to getting sick and may even hurt your heart.

“I took more hell for being fat than I did for being an absolute raging drug addict,” Osbourne, who checked into rehab for addiction three times prior, told Us Weekly in February 2010.