A tall glass of soy milk for me, please, and an ice water with a pinch of salt on the side for my friend. I couldn't keep up with TNG's fast, but 48 hours without eating was a new and interesting experience for me. The big surprise was how much time passed before I really felt it. I felt hungry a few times, with borborygmi, but nothing more intense than I occasionally feel anyway. Walking home from the metro station last night I hit the wall. This was the feeling, familiar from long runs, that I thought would arrive sooner. I felt lethargic and out of sorts. I made it home and stretched out on the bed to rest, but didn't feel better and my heart was still laboring. I had decided in advance to quit if there were any symptoms besides hunger, so I quit after 48 hours, finally indulging the fantasy of eating warm bread that had been frequently on my mind. _refugee_ gave the wise advice to get medical advice before experimenting with an unusual and unproven nutritional habit, which I didn't do. I rationalized that I was starting out in good health, would not be driving, and would never be far from medical services if needed. I also reasoned that we should get a doctor's advice before eating half a pizza, but nobody does because we know what the advice would be. If we accept doing things we know are harmful sometimes, we should be willing to try things that might be harmful, or might be beneficial. I didn't notice any big difference, besides the loss of 4-5 pounds which I expect to return soon. I did some reading and learned a lot, mostly from two articles on a site that promotes what I would describe as a fad diet, though it was much more informative, objective and less ad-ridden than WebMD.