Selenium is a trace mineral that requires a small amount, but still plays a role in many important processes in our body, including metabolism and thyroid function.
Selenium, which is nutritionally essential for humans, is a component of more than two dozen selenoproteins that play a key role in reproduction, thyroid hormone metabolism, DNA synthesis and protection against oxidative damage and infection. Selenium deficiency can cause many changes in the immune system, the most important of which is the suppression of the immune response to a bacterial or viral infection.
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