Check the dictionary: Sodium fluoride is rat poison. It is the waste from aluminum companies. A book, "Fluoridization, The Crime of the Century" by J.A. Campbell written in 1963, tells of his fight to do away with fluoride.
Sodium, an element, is a very unstable metal, and fluorine, an element, is one of the halogens. It is a gas and the mad dog of all elements. When the two are combined to form sodium fluoride, it is one of the most deadly poisons known to man. The natural element is calcium fluoride. We are buying the waste from aluminum companies as they cannot dump it anywhere for it will poison water, eat through metal and so on.
It is found to cause cancer, Alzheimer's, attention deficit disorder and much more. Go to http://www.nofluoride.com for more.
June Walker
St. George