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What was a fact taught to you in school that has been proven false during your lifetime? (lemmy.ca)

submitted 4 days ago by Kurtagag@lemmy.ca to c/asklemmy@lemmy.ml

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[–] Rainbowblite@lemmy.ca 6 points 3 days ago

Fluoride can be bad for you, just at much higher doses than they put in water supply. It can cause issues with bones and neurological development. Again, only in very high doses over a long time. It happens a lot in poorer countries where they can't treat well water.

https://en.m.wikipedia.org/wiki/Skeletal_fluorosis