I read an interesting cleansing/detox 'report' from a curezone subscriber recently which talked about the various stages of cleansing you go through with an extended fast. Mine have not been consecutively longer than two weeks but ive experienced some of this. The first three days is withdrawl, then you get the gross coated tongue as the toxins come out, not until after at least a week of this (which takes you in total to at least 10 days) do you begin to have highly positive results. 30 days was quoted feeling wonderful, superb mental clarity super being stuff, ive never made it 30 days straight but have experienced the toxin shed symptoms for sure. WE're all diferent, if you're struggling and do not want to continue maybe your body's telling you to have more substancial input, 10 days is a good cleanse anyway. I find i lose my appetite after 4 days anyway and cave in due to social pressures, it's hard to go your own way sometimes. All the best Emma.