I couldn't find anything on that site that wasn't marketing material. I didn't dig deep into that organization but it appears to be run by the type of fanatics that I am talking about. It is dedicated to advocating for a certain type of treatment, not dedicated to gathering what we do and don't know about the topic.
I'm not sure why you keep using the term fanatics in what should be a civil cpnversation - it makes me think that either you have an agenda you're trying to hide your simply put you're an extremely rude person.
I'm using the word "fanatic" becuse I think it's meaning is the closest to what I am trying to describe: "a person marked or motivated by an extreme, unreasoning enthusiasm, as for a cause." It isn't intended as an insult or perjorative, but a descriptor.
I am coming from the perspective of being genuinely interested and wanting to try such a diet but unable to find any good information in the sea of fanatical marketing.