Element of caution: a case of reversible cytopenias associated with excessive zinc supplementation.

CMAJ · 2003

case_report · Level V

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Abstract

Zinc is a common supplement and is widely available as a standard component of many over-the-counter products. A number of reports have identified an association between excessive zinc intake and severe cytopenia. We report a case of zinc-induced copper deficiency in a young adult to illustrate this under-recognized cause of anemia and neutropenia.