Selenium and health: how this mineral helps prevent diseases

Selenium is an essential mineral for the body, recognized primarily for its role in cellular protection and maintaining physiological balance. With antioxidant and anti-inflammatory properties, selenium has gained prominence in the prevention of various chronic diseases, in addition to contributing to thyroid health, strengthening the immune system, and reducing cardiovascular and metabolic risks. Understanding how this mineral acts in the body can help you appreciate its importance in your diet and daily health care.

Selenium is a fundamental component of selenoproteins, which perform an antioxidant function by neutralizing free radicals generated by metabolism and exposure to external agents. These radicals are unstable molecules that can cause cell damage, contributing to premature aging and the development of chronic diseases such as cancer, diabetes, and neurodegenerative diseases.

By reducing oxidative stress, selenium helps protect DNA, proteins, and cell membranes, providing stimulation and promoting a healthier organic environment.

The thyroid is one of the organs most dependent on adequate selenium, as the enzymes that regulate thyroid hormone production are selenoproteins. This mineral also plays a role in modulating the immune system, which is essential for preventing autoimmune thyroid diseases such as Hashimoto's thyroiditis and Graves' disease. Studies indicate that selenium supplementation can improve immune balance, reduce local inflammation and damage to the gland, helping maintain thyroid health and proper function.

An efficient immune system depends on a number of nutrients, including selenium, which plays an important role in activating defense cells and regulating the immune response. The mineral influences the production of cytokines, proteins that coordinate the body's response to infectious and inflammatory agents, promoting a balanced immune system that prevents both immunosuppression and overactivation. Thus, selenium contributes to the prevention and improved recovery from viral and bacterial infections.

Cardiovascular and metabolic diseases are often associated with oxidative stress and chronic inflammation, two processes that selenium helps combat. Adequate levels of this mineral in the body are linked to improved endothelial function, which ensures healthy blood vessels, and the regulation of cholesterol and blood glucose levels. Thus, selenium acts as an ally in the prevention of diseases such as hypertension, atherosclerosis, type 2 diabetes, and metabolic syndrome, promoting a better quality of life and a lower risk of complications.

Selenium is a vital mineral for several essential functions of the human body, especially in preventing chronic diseases, supporting thyroid health, strengthening the immune system, and protecting the cardiovascular and metabolic system. Incorporating natural sources of selenium into your diet, such as Brazil nuts, fish, meat, and whole grains, and maintaining professional monitoring to assess the need for supplementation are important steps to ensure its benefits and promote a healthier, more balanced life.