Portland, Ore., is the country’s largest city that does not add fluoride to the water supply to fight tooth decay. On Friday, Mayor Sam Adams announced he will vote in favor of fluoridation.

Fluoride has long been the focus of conspiracy theories involving government mind control, the Illuminati and the New World Order.

The mayor’s support of the fluoride initiative didn’t go over too well with some Portland residents.

https://twitter.com/ecocentric/status/236630294155915264

https://twitter.com/LivingGreenOR/status/236672576045334528

Most major metropolitan areas in the United States have fluoridated water.