There are hundreds of essential processes in our bodies, but many people are unaware of the vital substances behind them. One of these substances is selenium (actually, the selenium element). Selenium deficiency weakens the immune system, causes fatigue, and leads to hormonal imbalances. Scientific research shows that the benefits of selenium are not limited to supporting the immune system. It also plays a crucial role in maintaining heart, brain, and reproductive health. For this reason, selenium is not just a “supplement” - it is a natural shield for your health. In this article, we will clarify the benefits of selenium, signs of deficiency, and the effects of excess selenium (selenosis). We will also provide useful information about tests to check your selenium levels.
What are the symptoms of selenium deficiency?
Selenium deficiency often develops silently in the body. However, after some time, the body starts sending warning signals. The most common symptoms include:
- Chronic fatigue
- Hair loss and brittle nails
- Thyroid gland problems
- Weak immunity and frequent illness
- Attention deficit
Experts indicate that the benefits of selenium primarily emerge by preventing these symptoms. Individuals who maintain adequate selenium levels tend to have a more active metabolism and balanced energy levels.
Note: Natural sources rich in selenium include fish, eggs, and Brazil nuts.
Can an excess of selenium be harmful? What is hyperselenosis?
Yes. Excess selenium can also be harmful to the body. This condition is called hyperselenosis. Prolonged intake of high doses of selenium may cause the following symptoms:
- Brittle nails and hair
- Metallic taste in the mouth
- Neurological disorders
- Nausea and dizziness
So, balance is important when taking selenium vitamins. It is recommended to choose the daily dose as prescribed by a doctor and check the level with selenium tests.
The effect of selenium on immunity
Selenium has a direct impact on immunity. This element enhances the activity of immune cells and strengthens the body’s defense against viruses. Therefore, the benefits of selenium are especially noticeable during the winter months and periods of stress. Research shows that people with selenium deficiency experience more severe infections. Additionally, selenium acts as an antioxidant, protecting cells from free radical damage.
Which tests are used to check selenium levels?
Selenium levels are measured by blood or urine tests. These tests are prescribed by an endocrinologist or therapist.If you experience any of the following, selenium tests are highly recommended:
- Persistent fatigue
- Hormonal imbalances
- Weakened immunity
- Hair and nail problems
Based on your results, your doctor can determine the appropriate dose of selenium for you. Note: Taking selenium supplements on your own can be risky, as each body’s needs are different. Although the body requires only a small amount of selenium vitamin, its effects are significant. It supports the immune system, regulates thyroid function, and acts as an antioxidant. However, it’s important to remember: just as selenium deficiency is harmful, excessive selenium (hiperselenosis) can also be dangerous. To maintain the right balance, it is essential to have regular general vitamin tests.