[PepeGomez]

Getting too much copper is virtually impossible unless you have a rare genetic disorder. The excess copper is excreted in bile. The defficiency on the other hand is widespread, it doesn't show in the blood tests and the symptoms are both vague and insidious. (Chiefly a constant lack of energy, brain fog and incurable anemia)

[mathgeek]

Do you have any sources for those claims? I'm sure many of us are, like me, trying to figure out which of all these conflicting claims are backed by science.

[PepeGomez]

https://www.ncbi.nlm.nih.gov/books/NBK222312/#ddd00333

http://www.who.int/water_sanitation_health/dwq/chemicals/cop...