Published on 2 October 2023 at 13:45


—Jill Fandrich, PharmD, CRPh


Selenium is a trace mineral that plays a crucial role in maintaining overall health and well-being. Here are some of the key benefits of selenium:


1. Antioxidant properties - Selenium is known for its strong antioxidant properties, which help protect the body's cells from damage caused by free radicals. This can reduce the risk of chronic diseases such as heart disease, cancer, and neurodegenerative disorders.


2. Thyroid health - Selenium is essential for the proper functioning of the thyroid gland, which plays a crucial role in metabolism, growth, and development. It helps in the synthesis and activation of thyroid hormones, which regulate various bodily functions, including energy production and mood.


3. Immune system support - Selenium is vital for a healthy immune system. It enhances the activity of immune cells, promotes the production of antibodies, and helps defend against infections and diseases. A selenium deficiency can weaken the immune response and increase the susceptibility to infections.


4. Cancer prevention - Selenium has been found to have a protective effect against certain types of cancer, such as prostate, lung, colorectal, and breast cancer. It helps inhibit the growth of cancer cells and promotes DNA repair, reducing the risk of tumor formation.


5. Heart health - Selenium plays a role in maintaining heart health by reducing inflammation, improving blood flow, and preventing the formation of blood clots. It may also help lower blood pressure and cholesterol levels, reducing the risk of heart disease.


6. Cognitive function - Selenium has been linked to improved cognitive function and a reduced risk of cognitive decline and neurodegenerative disorders such as Alzheimer's and Parkinson's disease. It supports brain health by reducing oxidative stress and inflammation.


7. Male fertility - Selenium is essential for male fertility as it supports the production of healthy sperm. It helps protect sperm from oxidative damage and promotes their movement and viability.


8. Healthy hair and nails - Selenium contributes to the health and appearance of hair and nails by promoting their growth and strength. It helps in the production of keratin, a protein that forms the structural component of hair and nails.


It is important to note that while selenium is essential for health, excessive intake can be harmful. It is recommended to obtain selenium from natural food sources such as Brazil nuts, fish, eggs, and whole grains or through supplementation under the guidance of a healthcare professional.


Just as selenium acts as a vital trace mineral in our bodies, it serves as nature's protector, aiding in various essential functions such as boosting the immune system, supporting thyroid function, and acting as a powerful antioxidant.

—Dr. Jill

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