In 2012 more than 67 percent of Americans received fluoridated water, and of those, more than 11 million people were getting fluoride at or above the “optimal” level of 0.7-1.2 milligrams per liter (mg/L), according to the US Centers for Disease Control and Prevention (CDC).
Then, in April this year, the US Department of Health and Human Services (HHS) announced that this “optimal” level of fluoride, recommended since 1962, had in fact been set too high, resulting in 40 percent of American teens showing signs of overexposure[2]-a condition known as dental fluorosis.
So, for the first time in nearly 55 years, the US government lowered its recommended level of fluoride in drinking water to a maximum of 0.7 mg/L.
The question is, will this new level protect everyone from overexposure?
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