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by bigbillheck 851 days ago
Just like lead? https://news.ycombinator.com/item?id=39087999
1 comments

Yes, and a few others.

Copper is the weirdest one, as its essentiality is widely accepted, autopsies show its reduced concentrations in dementia, yet it's regulated as a toxic metal anyway.

The cause of this deception is a mystery to me.