Shocking, indeed! Some celebs seek out extreme methods to shed pounds, while others transform with the aid of healthier methods. From Rosie O'Donnell's and Jordin Sparks' respective 50 pound weight losses to Biggest Loser winner Rachel Frederickson's whopping 155 lighter frame, see before and after pictures of celebrities' weight loss transformations.
Khloe Kardashian 25 pounds and more
The youngest of the Kardashian sister trio opened up her impressive weight loss on a Watch What Happens Live episode in May 2013, attributing her slimmer physique to "consistency." She added, "I have been working out at least four days a week. I eat better in moderation. I still have to eat, I love food. It's just eating in moderation, it's lifestyle changes."