@jeffcliff @BowsacNoodle @Thusnelda @agaperealm @pepsi_man Exposure is wildly variable depending on how much a person consumes from fluoride-containing sources. Many people won't get the supposed benefit of consuming it, but others will, or they'll get more than they should. Especially children and infants, as they can easily get harmful levels even from "safe" concentrations in tap water.

People aren't getting appropriate doses for their body weight or respective needs, so it's not controlled. Simple as.

Using tap water as a delivery mechanism for any other medication or supplement would be terrible for many obvious reasons. I haven't even touched on the potential for harm to the environment or plants or other animals, but it's bad enough when you only consider the human side of the equation. Just have dentists and doctors administer it like we do for literally everything not over-the-counter.