Bryan Johnson· Author
Recent report from the National Toxicology Program associated fluoride levels as low as 1.5 mg/L to lower IQ in children Ref (2)
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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.
Recent report from the National Toxicology Program associated fluoride levels as low as 1.5 mg/L to lower IQ in children Ref (2)
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.
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So getting a bunch of fluoride in your drinking water or in your toothpaste is probably not good for human IQ in general. Especially not good for your child's IQ.