Pete Evans goes on Instagram rant slamming the 'mass fluoridation of public water' with a poison symbol and encourages fans to 'educate yourself

He's no stranger to using social media as a platform to air his oft-controversial views about health.
And celebrity chef Pete Evans, 42, has once again taken to his keyboard with claims that fluoride is poisonous.
On Saturday, the reality TV star posted to Instagram a photo of a tap water and the poison symbol, writing that he was concerned about the 'mass fluoridation of public water'.

Claims? It is poisonous. And why "rant" (to complain in a way that is unreasonable)