I know I'm not an expert but have been following the progress of some on this program for over a year. That is what brought me to finally try it. A lot of people seem to be improving on the FB group from what I've read. I've also seen other's blog posts about it and it's taken some several slow years of getting well enough to work. I've noticed some have had to switch practitioners a few different times including programs before they made all of their progress. So, I think it works, some need different practitioners, more time, or to address infections or parasites, from what I've read. Maybe it doesn't work for everyone, though, not sure.