Fluoride
Also: sodium fluoride · stannous fluoride · sodium monofluorophosphate · amine fluoride
Probably fine at toothpaste and water concentrations — chronic high-dose exposure is a concern worth tracking, but typical dental use is not.
Testosterone & hormonal load
At levels found in fluoridated drinking water and toothpaste, fluoride is not established as an endocrine disruptor for testosterone in most adult humans. Some ecological studies and the NTP 2024 systematic review found associations between high fluoride exposure and lower IQ in children at concentrations above 1.5 mg/L (higher than US community water at 0.7 mg/L). Thyroid effects at higher doses are observed in animal studies. The debate continues and tracking the evidence is worthwhile.
Found in.
Two jurisdictions, two different verdicts.
Permitted in toothpaste at up to 1,500 ppm (0.15%) fluoride. Fluoride supplements regulated as medicines. Water fluoridation not practiced in most EU countries.
Approved as OTC drug ingredient for dental cavity prevention. Fluoride in drinking water regulated by EPA at max 4 mg/L; recommended level is 0.7 mg/L.
The receipts.
- [01]NTP Fluoride Monograph 2024 — Systematic review of neurotoxicityntp.niehs.nih.gov/whatwestudy/assessments/noncancer/completed/fluoride
- [02]Bashash et al. 2017 — Prenatal fluoride and child cognition (PubMed)pubmed.ncbi.nlm.nih.gov/28937959/
- [03]WHO — Drinking-water quality guidelines (fluoride)www.who.int/docs/default-source/wash-documents/wash-chemicals/fluoride-background-document.pdf
Find Fluoride before it finds you.
Point the camera at any barcode. Mangood reads the ingredient list and tells you, in one tap, whether Fluoride is hiding in the bottle in your hand.