Just a follow-up question to my previous thread about Cortisol tests .. Someone suggested that the best results would be obtained if all supplements etc. were stopped for 2 weeks prior to doing the test. However, that isn't a realistic option for me unfortunately because of severity of my symptoms and the urgency with which I'm trying to get help -- I have an appointment booked for 12 day's time at an integrative medicine clinic and wanted my results ready before then. I feel so awful that hopefully something will be captured, even if it isn't under ideal conditions. I've ordered the test, which should be here tomorrow. What I was wondering is: if I use caffeine daily (1-2 cups) and therefore presumably have some tolerance to its cortisol-raising effects (I believe it lowers cortisol with daily use), should I consume coffee as normal on the day of testing, or stop it? I wasn't sure if sudden cessation might cause more problems, or if it would just be better to be caffeine/supplement free on the day of the test. (FWIW the only other supplement I use is magnesium).