I've wanted to try this.
Were you still training during the fast? Do you work a job that is either physically or mentally demanding, and if so, were you able to sustain it?
Lastly, how did you look in the mirror when it was done? Were you noticably thinner? Did you lose fat or muscle or both?
I started on Friday so by Monday at work I would be used to it and also know the effects on my stomach.
I took a week off training. It recomends to limit physical work. It was nice being lazy for five days. After you get over the mental fucking that happens with food cravings you move on. I had presentations to do on Monday, Tuesday and Wednesday that went perfect. So it didn't mess with my mental abilities. I actually felt real energetic as well. Only felt tired on day one and had a bit of a headache that went away.
Funny thing is my body looked flat. No muscle pumps, but I was thinner. My belt had to be tightened a lot more than usual. I probably didn't lose any muscle in 5 days since the body will burn fat for energy first then swtich to muscle. I'll know when I go back to the gym on Monday how my strength was affected.
I never had any killer craps until after I ate my first meal. You have to be mentally strong to get through 5 straight days with no foods. On day four I didn't even want to take the fiber supps anymore. I just wasn't hungry.
This was done not for fat loss but to kick start my digestive system as I am starting a cleaner diet now and needed to clean up my system.
Funny thing is I sweat a lot and this time I never sweat. I actually got cold where I normally would be hot and sweaty with 80 degree weather.