how much weight can you lose fasting for 30 days?

Answer 1

all i know is you will gain back much more than lost as soon as start eating normal again, since all you will lose is water weight and muscle not fat.

Answer 2

Your entire life. If you live through it, it would depend on your activity level during that time, heat, stress, fluid intake and the amount of body mass you had to burn before the fast. After this long much of your muscle would be digested as well.

Answer 3

That depends on how much you originally weigh, you'll lose fat from all over your body, as well as your internal organs, primarily your stomach, of course.