Home / Blood Tests / Selenium

Selenium

Importance of Selenium in Human Health

Selenium is an essential trace mineral that supports several critical functions in the human body. It plays a key role in the antioxidant defence system, contributes to maintaining a strong immune response, and supports the metabolism of thyroid hormones.

Dietary Sources of Selenium

Selenium is naturally present in a wide range of foods, including seafood, poultry, meat, eggs, dairy products, nuts, and seeds. The selenium content in plant-based foods depends on the selenium concentration in the soil where the crops are cultivated, which can vary by region.

Symptoms and Risks of Selenium Deficiency

A deficiency in selenium can lead to various health concerns, such as muscle weakness, fatigue, and a heightened susceptibility to viral infections. In severe cases, prolonged selenium deficiency can result in Keshan disease—a type of heart condition linked to low selenium levels.

Dangers of Excessive Selenium Intake

While selenium is essential for health, excessive intake can have toxic effects. High levels may cause hair loss, digestive disturbances, and neurological issues. It is important to maintain selenium within an optimal range to avoid both deficiency and toxicity.

Private Selenium Testing in Slough and Surrounding Areas

Residents in Slough, Maidenhead, Windsor, Langley, and Burnham can access private selenium blood testing for nutritional assessment and early detection of imbalances. Regular monitoring helps ensure optimal immune function, thyroid support, and overall wellbeing, while reducing the risk of both deficiency and toxicity.

There is an additional £20 phlebotomy fee for every donation.