We can't find evidence that holds up here. Proponents are reasoning from mechanism or analogy rather than direct human data, and the most credible skeptics raise objections we can't dismiss.
shows is that fluoride negatively impacts thyroid stimulating hormone and so-called T3 levels. So you have thyroid hormone, T3, and T4 even in the standard concentrations that are present of, and here's an important number, 0.5 milligrams per liter.
Every Sunday: the week’s new conflicts and verdict changes — and nothing else.
Native comments, Twitter mentions, and Reddit threads about this claim — surfaced together so the conversation isn't fragmented across platforms.
Bookmarking — the dossier-vs-overview split is the right call. Most of the time I want overview; sometimes I want receipts.
Would love a "what would change this verdict" RSS feed. Sign me up if it exists.
That the fluoride is causing disruptions to thyroid hormone output or on the receptor end, in other words disruptions to thyroid hormone metabolism and usage in the body.
Well, there is some evidence that if levels of fluoride in drinking water exceed a certain threshold, it can cause problems with thyroid hormone function and perhaps even certain aspects of brain function.