Shadar, thank you for your input. The fluorides that are introduced naturally are calcium fluorides, which have significantly different effects on the body and health than the silicofluorides that are added by municipalities. Silicofluorides are a hazardous waste and are used as poisons in other applications. I am sure there will still be latent affects of these artificially added substances found in the soils and in the drinking water, but it is an important first step to stop the intentional inclusion of them into the ecological system.