Excessive amounts of which trace mineral can act as a potent oxidant that damages the membranes of immune cells?

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Excessive amounts of iron can act as a potent oxidant and can damage the membranes of immune cells, leading to impaired immune function. This is known as iron overload, and can occur in individuals with certain genetic conditions or through excessive consumption of iron supplements. Selenium, zinc, and calcium are important trace minerals for immune function and are not known to cause damage to immune cell membranes in excessive amounts.

Excessive Amounts of Which Trace Mineral Can Act as a Potent