Everywhere we channel surf these days, there is a new reality show where fat people are getting skinny. It all began with NBC's 'The Biggest Loser' and has continued in various iterations on VH1 ('Celebrity Fit Club'), MTV ('I Used to be Fat') and, most recently, A&E ('Heavy').

Weight loss porn has become a special form of voyeuristic television. Each of the shows approaches losing weight in a different way, and at some point each has been criticized for what seem to be extreme and unsafe tactics to lose weight in a way that is visible in a short period of time so the at-home audience can viscerally experience the visual effects of the loss.