Medical conspiracy theories tend to involve “someone” hiding something from the public. I like to refer to this as the fallacy of “secret knowledge.” That “someone” hiding the “secret knowledge” is usually the government, big pharma, or other ill-defined nefarious forces. The “secret knowledge” being hidden comes invariably in one of two flavors. Either “they” are hiding cures for all sorts of diseases that conventional medicine can’t cure, or “they” are hiding evidence of harm due to something in medicine.