The Fluoride-IQ Studies Are Real. They're at Twice the Level America Puts in Water.

The claim that fluoride in U.S. drinking water lowers children's IQ is misleading. The IQ associations come from studies at fluoride levels above 1.5 mg/L, more than double the 0.7 mg/L the U.S. recommends, and the NTP researchers say their findings do not pertain to U.S. fluoridation; a large study found no cognitive effect at recommended levels, and the ADA, CDC, and AAP still endorse it. Elena rates it Misleading.