I am looking for an expert in copper metabolism for a short email communication.

My personal riddle is this: I have been taken 5mg coppercitrat daily to rise my copper level for longer than a year. But the level still stays close under normal. 5 mg is the 5fold of daily recommendation. Ceruloplasmin stays close over the low limit.

What would you expect is a "normal" impact on copperlevel after such an supplementation?

thank you

Gudrun Lang