[zkms]

>(More surprisingly, there is evidence that lead is an essential micronutrient in trace quantities but its biological function is not currently known.)

Do you have some links about this? I found some papers re arsenic but I can't find anything re lead.

[jandrewrogers]

The amount of slop on Google has ruined everything, it is hard even for me to find papers and I know about it. But I do have a starting point for you:

https://pmc.ncbi.nlm.nih.gov/articles/PMC2246629/

It is genuinely surprising but there is evidence for it.