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The crucial role of Selenium in boosting Your defenses

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Selenium is an essential trace element that plays a crucial role in various physiological functions within the human body. It is incorporated into selenoproteins, a group of proteins that have important antioxidant and other protective functions.


Selenium is vital for maintaining overall health, and its importance lies in several key functions:
  1. Antioxidant Defense: Selenium is a component of selenoproteins, such as glutathione peroxidases, which act as antioxidants. These enzymes help protect cells from damage caused by oxidative stress, neutralizing harmful free radicals and reducing oxidative damage to cell membranes and DNA.
  2. Thyroid Function: Selenium is essential for the synthesis and activation of thyroid hormones. It is a component of enzymes involved in the conversion of the inactive thyroid hormone thyroxine (T4) to the active form triiodothyronine (T3). Proper thyroid function is crucial for regulating metabolism, growth, and development.
  3. Immune System Support: Selenium plays a role in the regulation of the immune system. It enhances the function of immune cells, helps modulate inflammation, and contributes to the body's defense against infections.
  4. Reproductive Health: Selenium is important for male and female reproductive health. It is involved in sperm motility and function in males, and it supports the development of the placenta during pregnancy.
  5. Cancer Prevention: Some studies suggest that selenium may have a role in reducing the risk of certain cancers. However, the relationship between selenium and cancer is complex, and excessive selenium intake may have adverse effects. More research is needed to understand the potential benefits and risks.
Dietary sources of selenium include:

  • Nuts and seeds
  • Seafood
  • Meat
  • Poultry
  • Eggs
  • Dairy products
  • Whole grains
While selenium deficiency is rare in regions with a balanced diet, it can occur in areas with selenium-poor soils. Deficiency symptoms may include fatigue, muscle weakness, and potential thyroid dysfunction.

It's important to maintain a balanced intake of selenium from dietary sources and, if necessary, under the guidance of healthcare professionals.

As with any nutrient, maintaining a balance is crucial, and it's advisable to consult with a healthcare professional if there are concerns.
-- Written by Hala, founder of Dietapplements

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