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Selenium plays a crucial role in thyroid hormone metabolism and function by helping convert inactive thyroid hormone (T4) into its active form (T3). Selenium deficiency can impair thyroid hormone synthesis and contribute to thyroid disorders such as hypothyroidism. Adequate selenium intake supports optimal thyroid function and may help reduce the risk of thyroid-related complications.

Selenium is a powerful antioxidant that helps protect cells from oxidative damage caused by free radicals and reactive oxygen species. As a component of selenoproteins like glutathione peroxidase, selenium helps neutralize harmful compounds and maintain cellular integrity. Adequate selenium levels are associated with reduced inflammation, improved immune function, and lower risk of chronic diseases such as cardiovascular disease and age-related cognitive decline.

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