I've done this once. Only drank water for 3 weeks, and have 1 slice of bread every morning. It's hard at first, after a few days you get used to it. I actually lost 20 pounds in 3 weeks. Then I realized I can't live without my pizza's and hamburgers. Those 20 pounds came back pretty fast. Anyways, it definitely works, i don't know for how long your body could take it. But i lasted 3 weeks.
I did still go to the bar every Friday night, so i did cheat a little.
I did still go to the bar every Friday night, so i did cheat a little.