By Dr. Mercola - The US government has finally admitted they've overdosed Americans on fluoride and, for first time since 1962, are lowering its recommended level of -fluoride in drinking water. 1-, - 2-, - 3 - About 40 percent of American teens have dental fluorosis, - 4 - a condition referring to changes in the appearance of tooth enamel—from chalky-looking lines and splotches to dark staining and...