Fluoride is added to many towns' drinking water and said to help with tooth decay, however many studies show that ingesting fluoride does not reduce cavity production. In fact, the CDC reports an increase in the number of cavities in children 2-5 years old. http://www.cdc.gov/Features/dsUntreatedCavitiesKids/a
Studies show fluoride is harmful to humans, especially when ingested. Dr. Dean Burk stated, "Fluoride causes more human cancer death, and causes it faster than any other chemical.". http://lybio.net/dr-dean-burk-fluoride-causes-cancer/people/
Fluoride should be made illegal under the Delaney Amendment, which says that anything found to induce cancer in man or animals cannot be legally put into the food or drink of man or animals.
For more information: www.fluoridealert.org