Well, in case you didn't know it, fluoride is highly toxic. In fact, before fluoride was deemed a "cavity fighter," it was used as insecticide and rat poison. It's true. Even more surprising is that when it comes to dental hygiene, fluoride actually does more harm than good.fluoride has been shown to enhance the brain's absorption of aluminum - the substance that's found in the brains of most Alzheimer's patients. Three different osteoporosis studies have associated hip fractures with fluoridation. And excessive fluoride has been shown to damage the musculoskeletal and nervous systems, leading to limited joint mobility, ligament calcification, muscular degeneration and neurological deficits. a number of different studies have linked fluoride to as many as 10,000 cancer deaths per year



