If you think there's nothing "real" about reality TV, well, you're right for the most part. But when you see someone lose 20, 100, even 200 pounds before your eyes, you can be sure that it's not a product of producer-manufactured drama or computer-generated imagery.
Our friends at Fitbe.com found eight amazing TV transformations that are incredible, indisputable, and inspiring, to boot.
Credit: CBS/istockphoto/NBC