I don't know about hyperthyroidism but I would think it would help for that too. It is a universal remedy. You don't need a diagnostic to benefit from it. There are certain rules to follow for its effectiveness though (go to http://naturinologie.info/english.html for all sorts of info) but I know for myself it worked on all my problems. I started the therapy in august 2004 mostly for sleep problems and ended up clearing all sorts of problems. I passed a kidney stone two years ago before starting the therapy and did not have that problem since. I could not sleep on my right side because of a sore hip, that problem desapeared also. I was very stiff comming out of my seat after sitting for two hours at the movie, joints were very sore, but now I can raise from my seat in a dignified way. Most of all I feel better and better physically and mentally. I don't have those lows anymore. I though they were normal and supposed to be (what goes up must come down...) I don't believe in it anymore. Most of all I sleep very well now about 8 hours per night. I feel calm and in control. I was always pale and a bit anemic all my life (had to take iron pills to get my hemoglobin up) but now I have pinky cheeks and more energy. I have comments saying I look better as I grow older. That in itself is uplifting! You surely have nothing to lose to try it but start very slowly to avoid strong detox reactions. Authors recommend Ufasting for acute conditons. I know a lot of people personnally who benefited form the therapy. My problems were not that serious except for sleep problems. Depending how severe your condition, your eating habits, lifetyle, it may take more or less time. Most of all its simple and free!