Yes, if textbooks and guidelines reflected available data, there might not be any need for a LCHF community.
Because: words do things. And one of the things words do is make things.
Most recently, this discourse community has shaped itself around an approach to diet
- protest lack of science behind dietary guidelines
- eat only meat
- sell supplements & radiation spray
Some in the community try to steer folks in one direction (away from hyperbole & towards data) while others want to expand claims to include "cures" for things that seem (otherwise) incurable.
--a massive dose of opportunism (who would be the "next" Bob Atkins?)
--& the logistical inability to "gather" forces.
Technology has been a powerful player here.
While science will (in the end) trump hyperbole & "snake oil," the politics of nutrition policy/science have slowed that process down considerably.
When that happens they begin to get traction, build momentum & change things.
However, rest assured:
1) "Snake oil" salesmen will always find some "snake oil" to sell, and