The fluoride scam is a good one, basically they had to find a way to get rid of the toxic by byproduct of industry so they made up that it helped your teeth and then rather than having to pay for expensive cleanup for fluoride they made everyone consume it instead.

Also Harold Hodge pushed the idea that fluoride was safe, it was later found out he was injecting people without their knowledge with uranium and plutonium as part of his human experiments, so kinda the fauci of his day.

I have always found it amazing how people fell for this, although its consumption does lower your IQ so maybe that helped fool people kek