Yes, fluoride is a neurotoxin. Of all the ways in which fluoride toxicity affects the body, its effects on the brain are particularly nasty. Fluoride’s side effects on the brain are highlighted particularly well in a study conducted by the National Toxicology Program (NTP) in America, which found that children exposed to fluoride in drinking water at levels that are currently considered safe (0.7 mg/L) had lower IQ scores than children not exposed to fluoride.

Let that sink in; such are the neurotoxic effects of fluoride that it lowers IQ, alters brain chemistry and impairs cognitive function. The report ultimately concluded that because of this, there is no safe level of fluoride in drinking water.