Yep—I like week-long fasts. Jason Fung is really great and motivating. You can find his podcasts with Jimmy Moore online (google for them) where he explains how to do it. He recommends using chicken broth. You may need the salt to keep from getting light headed.

I like to use a few cheese sticks as a crutch to ease into a fast so it isn’t a drastic drop, but that is just me. I get yelled at by purists that say I’m doing ketogenic those first few days. Whatever.

Low carb friends has a good forum for this