@Paul,
I haven't been tested for mineral levels. I might supplement with zinc citrate during the cold and flu season. I plan on sticking close to the RDI of 15mg.
I was just reading this online;
http://www.westonaprice.org/metaboli...zinc-imbalance
Something I was reading months ago about copper/zinc prompted me to order a bottle of zinc citrate. I don't recall the article now.
I love the information you share. Thanks for posting all the interesting details about copper and cancer.