yeah its unresonable, they can eat protein and loose the weight just as easy without loosing the muscle mass. Also starving so much will make a person binge eat.
You don't seem to understand how fasting works.
For one, eating a little bit of protein during a fast isn't going to conserve your muscle mass, it's gonna be burned up and used as energy first before the body depletes it's fat stores. It's also going to have a psychological effect of making you more hungry because your head is going to tell you that "I am not full yet, I need to eat more" since you're body will be looking for glucose (from foods) instead of glycogen (from your fat reserves) and you won't make it past the first 24 hours. That's a good way to fail.
By the end of the 3rd day you're body will have adapted and switched over to using your fat reserves 100% as energy and you will no longer experience the intense hunger seen during day one. So no, you're not "starving" at all, at this point if you've never fasted before you'll realize that hunger is a 90% mental thing, you don't need nearly as much food as you think to function (overweight people). It takes real discipline, because even though you won't be hungry, you will "miss what food was like". Hard to explain, but they are two different things.
As far as binge eating afterwards, again it comes down to self discipline. If you know you don't have enough to slowly transition out of a fast then you shouldn't try it. Because when you take that first bite after 1 week you are going to be more in love with food in a way you never experienced before, you'll appreciate the flavor in even the blandest of food and you will want more of it. All comes down to self-discipline.
Losing a tiny bit of muscle mass is a small price to pay to avoid losing your career and only source of income for 16 years. Muscle mass, especially in someone breaking from a sedentary comfortable lifestyle (ie: fasting w/o excercise), can be put back on rather quickly, you're not permanently damaged for life. Just get off your *** after the fast and don't go back to your old ways, adapt to your new weight.
Don't take my word for it; do some research; talk to people who have done it before; a water fast is hardly unreasonable given the original poster's situation.
That got me really excited. At least this is working. I am not reallly hungry, just at night after dinner I still crave a snack, but I am telling myself that being hungry at night is your body working on losing weight! 
