[Hugo]

2-4-6-8 diet.

First day, only eat 200 calories.
Second day - 400 calories
Third day - 600 calories
Fourth day - 800 calories

Then go back to 200 and start it again.
It messes up your body though, your body goes into starvation mode so as stop the diet you body will store all the fat or something. I can't remember.