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4 benefits of selenium proven by science


Selenium is one of the thirteen essential minerals – a class of nutrients that are essential for maintaining a healthy body. Minerals are divided into two groups, macro minerals and trace minerals. Selenium is a trace mineral found naturally in protein-rich foods, seafood, and organ meats. Selenium is a vital mineral involved in the reproduction and metabolism of thyroid hormones, as well as many biological functions. We will talk about the health benefits of selenium and how it works.

What is selenium

Selenium is an essential mineral, which means that it is essential and must be obtained through your diet and nutrition, because your body does not produce it naturally. Although it is only required in small amounts, selenium benefits many important biological processes that include metabolism and thyroid function, as well as immune system function and cognition. Although only needed in small amounts, selenium plays a key role in many important biological processes that include metabolism and thyroid function as well as immune system function and cognition. Selenium is an essential component of several enzymes and proteins, called selenium proteins, that help form DNA and protect against cell damage and infections.

Selenium benefits

Supports thyroid function

One of the most well-known benefits of selenium is its role in thyroid function. Thyroid tissue contains more selenium than any other human organ. Selenium acts as an antioxidant and protects the thyroid gland from oxidative stress. Selenium plays a role in the development of hormones that regulate metabolism and cell growth. Research indicates a direct, positive relationship between selenium deficiency and thyroid function [R].

The thyroid gland controls a number of important body functions, such as sleep, appetite, weight, energy, and normal body temperature. Low levels of selenium, and lead to thyroid dysfunction, which leads to negative symptoms, such as muscle weakness, irritability, fatigue, lack of sleep, and weight gain.

It works as an antioxidant

Selenium acts as an antioxidant that helps prevent oxidative damage to cells. Oxidative stress is an imbalance between free radicals and antioxidants in your body. Antioxidants get rid of reactive oxygen species (ROS), which maintains the proper balance of oxygenated cells in the body. Antioxidants can help protect your body from free radical damage, which is closely linked to chronic disease conditions, as well as age-related ailments.

May improve cognition

Research indicates that diets that contain healthy vitamins and minerals, as well as bioactive compounds, can contribute to alleviating oxidative stress in the brain. [R]. The ability of selenoproteins to protect against oxidative stress has been documented, demonstrating that selenium is one of several factors that may influence the risk of cognitive decline and proper neurological function as we age. [R].

Helps reduce asthma symptoms

Observational studies have shown that patients with chronic asthma may have lower levels of selenium and that selenium supplementation may show positive benefits for patients with asthma. A randomized controlled trial with a total of 24 patients with chronic asthma reported significant clinical improvement in the selenium-supplemented group, compared to the placebo group. However, the study cannot be validated by improving lung function and airway hyperresponsiveness, so more research and evidence is needed to determine whether selenium could lead to a positive therapeutic use for patients with asthma. [R].

May protect against heart disease

The researchers suggest that low selenium levels may be associated with an increased risk of cardiovascular disease. The meta-analysis has been published in American Journal of Clinical Nutrition Investigating the association of selenium with coronary artery disease and the efficacy of selenium supplementation in heart disease. 25 observational studies and 6 randomized controlled trials were evaluated and found that in observational studies, a 50% increase in selenium concentrations was associated with a 24% (7%, 38%) decrease in the risk of coronary heart disease. In randomized trials, the pooled relative risk comparing selenium-containing supplements with placebo was 0.89 (0.68, 1.17). [R].

Selenium benefits:

Selenium plays a pivotal role in overall health and wellness. Research shows that selenium acts as a powerful antioxidant and can benefit thyroid function, cognitive health, as well as immune system function. Adding foods rich in protein and vitamins selenium to your diet benefits your overall health and function by providing you with essential micronutrients.


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