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Report Links High Fluoride Levels in Water to Lower IQ in Children

US government analysis finds moderate confidence in the connection between elevated fluoride and reduced cognitive scores in kids.

  • The report is the first federal acknowledgment of a potential neurological risk from high fluoride levels.
  • Studies reviewed indicate children exposed to over 1.5 mg/L of fluoride have consistently lower IQs.
  • Approximately 1.9 million Americans are on water systems with naturally high fluoride levels.
  • The American Dental Association is reviewing the findings, which counter previous endorsements of water fluoridation.
  • Further research is needed to understand the impact of lower fluoride levels and effects on adults.
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