When I ask what is the fast for, It is because most people go off half cocked as we say down south...  I understand Master Clean; and your desire to regain your normal body functions....   But there are fast and there are fast, if you understand....  Some are for religious purpose which I have done at times...  Others are for so called weight control,{these usually do not work} and some are for general health purposes...  Which is what I hope you are doing....  

 The only guidance is be careful that you follow and maintain good control of your diet....   Fact the body can do with out food / substance for maybe 30 days, {depending on the age, physical condition, and sex of the individule....} but can not do with out fluids for more than a couple of days at most....    So I say again keep tabs on your diet, {Natural and raw is the best} and remember; it is the end result you seek, not another emergency health delimia....  

You are quite right in that if you can repeat something for at least 60 Days you can set a different life pattern...  That is why the military sends people to Boot Camps, this way they learn the desired methods, and it becomes more of a hibet...  Let hope that you have your diet under control, so that you will not just emerge from a full fast and go back to previous eating habits...  It would be better for you to get you diet corrected and work your self onto it so that in a couple of months you will have a healthy food habit....

 This is for you edification my dear....   Thanks for your blog and feed back... 

See Ya  Kerminator...

P.S. you can fast on the trail it all depends on what you take with you to eat...