Jan. 7, 2011 --The recommended level of fluoride in U.S. drinking water supplies should be lowered to prevent dental problems, according to a joint announcement today by officials from the Department of Health and Human Services (HHS) and the Environmental Protection Agency (EPA).
The HHS is recommending that water supplies contain 0.7 milligrams of fluoride per liter of water, replacing the current recommended range of 0.7 to 1.2 milligrams.
That recommendation won't go into effect immediately. It will be published in the Federal Register, followed by a period of comment from the public and others for 30 days.