I've also heard that mainsteam doctors dissuade their clients from fasting. It is completely up to you though what you want to do. I'm just sharing what I've learned and I plan on doing. Actually, I'm not going to tell my physician that I am fasting, and just ask to have the order written for the tests, for general maintenace reasons. If something comes up that suggests malnutrition or other problems, I may then become more expressive about my current activities. Otherwise, I personally feel there is no need to subject myself to his potential scrutiny or disapproval. I will also be seeking out the advice of a naturopath in the near future, if there is one to be found in Chicago. I understand they are more abundant in California though.