The Effects of Selenium on One’s Health:

Selenium is a trace mineral that plays a critical role in various physiological functions of the body. Like many elements, it operates on a balance — too little or too much can lead to health problems. Understanding the effects of selenium on one’s health requires looking at both its beneficial roles and the potential risks associated with excessive intake.

1. Essential Role of Selenium in Human Health:

1.1 Antioxidant Properties:

Selenium is a crucial component of the enzyme glutathione peroxidase, which acts as a potent antioxidant in the body. Antioxidants help neutralize free radicals — molecules that can damage cells, proteins, and DNA. By reducing oxidative stress, selenium helps protect cells from damage and supports the body’s natural defense system against various diseases, including cancer.

1.2 Thyroid Function:

The thyroid gland contains the highest concentration of selenium per gram of tissue compared to any other organ. Selenium is essential for the conversion of the thyroid hormone thyroxine (T4) into its active form, triiodothyronine (T3). A deficiency can lead to thyroid dysfunction, manifesting as conditions like hypothyroidism or autoimmune thyroid diseases.

1.3 Immune System Function:

Selenium aids in the proper functioning of the immune system. It plays a role in the proliferation of white blood cells and supports the body’s response to infections.

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