Selenium deficiency
Selenium Deficiency
Selenium deficiency (/sɪˈliːniəm dɪˈfɪʃənsi/) is a medical condition characterized by a lack of the essential trace mineral selenium in the body.
Etymology
The term "selenium" is derived from the Greek word "selene" (/sɪˈliːni/), which means moon. The term "deficiency" comes from the Latin word "deficientia", meaning a lack or shortage.
Definition
Selenium deficiency is a health disorder that occurs when the body does not receive or is unable to absorb the necessary amount of selenium. Selenium is a crucial nutrient that plays a vital role in human health. It is necessary for the proper functioning of the immune system and thyroid gland, and it also acts as an antioxidant, protecting the body from damage caused by free radicals.
Symptoms
The symptoms of selenium deficiency can vary depending on the severity of the deficiency. They may include fatigue, mental fog, weakened immune system, and fertility issues. In severe cases, it can lead to Keshan disease, a potentially fatal form of heart disease, and Kashin-Beck disease, a type of osteoarthritis.
Causes
Selenium deficiency can be caused by a diet low in selenium-rich foods, such as Brazil nuts, fish, and meats. It can also occur in individuals with malabsorption issues, such as those with Crohn's disease or celiac disease. Certain regions of the world, such as parts of China and Russia, have soils that are naturally low in selenium, which can lead to a deficiency in the populations living there.
Treatment
Treatment for selenium deficiency typically involves increasing the intake of selenium-rich foods or taking selenium supplements. However, it is important to consult with a healthcare provider before starting any new supplement regimen, as excessive selenium can lead to selenium toxicity.
Related Terms
- Selenium
- Keshan disease
- Kashin-Beck disease
- Antioxidant
- Immune system
- Thyroid gland
- Crohn's disease
- Celiac disease
- Selenium toxicity
External links
- Medical encyclopedia article on Selenium deficiency
- Wikipedia's article - Selenium deficiency
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