[hoppity]

I don't know... I went on a 30 day fast once, medically supervised, several years ago, and lost 37 pounds. Of course, I gained it all back and then some, so I would never recommend it, but I think the starvation mode thing is really overstated.

It isn't healthy to eat too little, and your metabolism does slow down, but it won't make you gain weight. You may be retaining water.