I sometimes get an F scan done by a practitioner a couple of hours away from me. It's useful to know what frequencies resonate, but it doesn't help you with the determining which supplements to take. The price tag is a little high for something that just determines frequencies. Then again, that is an important part of the treatment so may be I'm looking at this the wrong way. I think the range of the F scan is limited too.
All the F scan sessions I had never picked up Lyme. The practitioner told me that she always picks up lyme with it when it is there and declared that I don't have Lyme. Not sure if I do or don't, but obviously I have some problems that could come from Lyme.