Selenium is an essential mineral that plays an important role in various functions within the body. It acts as an antioxidant, helps in thyroid function, and supports the immune system.

However, not getting enough selenium in your diet can lead to selenium deficiency, which can cause several health issues. Here are the signs of selenium deficiency:.

1. Weak Immune System

Selenium plays a role in the immune system by activating enzymes that participate in the process. When the body is deficient in selenium, it can weaken the immune system, cause infections, and leave the body more vulnerable to viruses and diseases.

2. Hair Loss and Brittle Nails

One of the most common signs of selenium deficiency is hair loss and brittle nails. Selenium is essential for healthy hair growth and strong nails. A lack of selenium can lead to selenium deficiency-related hair loss and weak, brittle nails.

3. Thyroid Problems

Selenium plays a major role in the thyroid gland’s function. A lack of selenium can lead to thyroid problems, including autoimmune thyroiditis or Hashimoto’s thyroiditis, hypothyroidism, and goiter.

Selenium is necessary to convert the thyroid hormone T4 to T3, which helps maintain a healthy metabolism.

4. Cognitive Decline

Selenium deficiency can also lead to cognitive decline or brain fog. Studies show that low selenium levels can contribute to a decline in cognitive function and mental health disorders like depression and anxiety.

5. Reproductive and Fertility Issues

Selenium is important for reproductive health in both men and women. In men, a lack of selenium can lead to poor sperm quality, infertility, and an increased risk of prostate cancer.

In women, selenium deficiency can reduce fertility and increase the risk of complications during pregnancy.

6. Muscle Weakness

The muscular system also relies on selenium to function properly. Selenium helps with muscle growth and repair, and a lack of selenium can lead to muscle weakness and fatigue.

This can also impact physical performance, making even simple movements feel more difficult.

7. Low Energy Levels

Selenium is essential for energy production in the body. A deficiency can lead to reduced energy levels and fatigue, making it difficult to perform daily activities and exercises.

8. Poor Wound Healing

Studies suggest that selenium plays a significant role in wound healing by supporting the immune system and reducing inflammation. A deficiency in selenium can lead to poor wound healing and an increased risk of infections.

9. Mood Swings or Depression

Low selenium levels are associated with mood swings and depression. Selenium acts as an antioxidant and helps regulate the levels of neurotransmitters in the brain, which affect mood and cognitive function.

10. Cardiovascular Problems

Selenium deficiency can increase the risk of cardiovascular disease, including heart attack, stroke, and high blood pressure. Selenium helps maintain healthy blood vessels and reduces inflammation levels, which contribute to cardiovascular problems.