How much does someone normally loose in a 9 day fast with excersise?

This board is called Eating Disorder *Recovery*. We don't give out tips. This topic is completely inappropriate.

Yes, this is NOT the place to post a question like that:

BUT, What COULD a person lose on a nine day fast with exercise?? Possibly their life, due to dehyration and electrolyte imbalance!!

I'm sorry....this question wasn't for myself. I've had an eating disorder for a while and have not not eat or binge and purge in about a few months now which I am really happy about. I have a friend who told me they are doing a fast and of course I told them not to and told them the dangers...but they said they were going to do the fast no matter what cuz they needed to loose weight for some event thing...i think she said a wedding....and she was giong to eat normal after it well I asked that cuz I know i can't stop her...she is going to do what she wants no matter what anyone says. but I want to make sure she isn't going to loose too much weight in one week...well I'm sorry if I was brief in my post...I should of explained more...thank u ; )