A JAMA Pediatrics study of 601 Canadian mother-child pairs found prenatal fluoride exposure associated with lower IQ scores in children ages 3-4.
Boys showed a 4.49-point IQ reduction per 1-mg/L increase in maternal urinary fluoride; girls showed no significant association.
A separate NIH-funded study of 2,514 U.S. children found lower fluid cognition scores when prenatal fluoride exposure exceeded 675 ?g/L.
USC researchers found prenatal fluoride exposure linked to nearly double the risk of clinically significant neurobehavioral problems in 3-year-olds.
Current U.S. guidance recommends 700 ?g/L in drinking water; EPA’s regulatory limit is 4,000 ?g/L.
A decades-old practice faces new scrutiny: The fluoride question reopens
Read Full Article: https://www.naturalnews.com/2026-08-21-prenatal-fluoride-exposure-linked-to-lower-iq.html
