Here is how fucked English law is with this stuff:
Noted Science Author of "Trick or Treatment? Alternative Medicine on Trial" Simon Singh writes in a column for the Guardian -
"

ou might think that modern chiropractors restrict themselves to treating back problems, but in fact they still possess some quite wacky ideas. The fundamentalists argue that they can cure anything. And even the more moderate chiropractors have ideas above their station. The British Chiropractic Association claims that their members can help treat children with colic, sleeping and feeding problems, frequent ear infections, asthma and prolonged crying, even though there is not a jot of evidence. This organisation is the respectable face of the chiropractic profession and yet it happily promotes bogus treatments."
For this he was charged and found guilty of Libel of the BCA - potentially leaving him impoverished.
(Gratefully he did win his appeal after some of the worlds most notable scientists voiced their outrage)
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Who cares...