If you have stalled and need to reboot your system - FAST. For 48 hours....so 2 days, you wont die or anything lol it is actually quite easy.

It is not dangerous either, very healthy in fact. You can drink water only, nothing else.
You will find your body feels so much better, you will eat smaller portions and your body will have kick started its own metabolism.

The only thing that would stop you doing would be if you are BF...?