i found this site on my first search..just remember..it's just a site i found..i can't vouch for it.

http://altmed.creighton.edu/pelvic2/toxicity.htm

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<FONT size=4>Zinc is an essential mineral, but too much is not beneficial. Symptoms of zinc toxicity include nausea/vomiting, fever, cough, diarrhea, fatigue, neuropathy and dehydration. Further signs include growth retardation, altered iron function, anemia, copper deficiency, decreased immune function, decreased HDL (high density lipoprotein), increased LDL (low density lipoprotein), and increased HgbA1C.