Why is copper in the body bad for you? Like with Wilsons disease...
Wilsons disease is a genetic storage disease. The copper accumulates into many organs and it can't be eliminated by natural means. It will eventually kill the liver (you need that to live), cause permanent brain damage like any other metal poison disease and it can affect the eyes and blood. It has to be treated with drugs that glue themselves to the copper, but it only works when the disease is in earlier stages.
I thought it just causes trouble for your stomach, regarding digestive abilities