Selenium Explained: Its Importance and the Importance of Moderation

Selenium Explained: Its Importance and the Importance of Moderation

Selenium, a vital mineral that the body cannot produce on its own, plays a significant role in maintaining good health. It is essential for thyroid hormone metabolism, immune response regulation, and acting as a powerful antioxidant [1][3].

This mineral, found in foods like Brazil nuts, seafood, poultry, and whole grains, supports thyroid health, immune system function, brain and reproductive health, and potentially reduces the risk of certain chronic diseases such as cancer and cardiovascular disease [1][3][5]. Selenium's antioxidant properties help protect cells from oxidative damage caused by free radicals, which is linked to aging and disease.

The recommended daily intake of selenium for most adults is 55 micrograms per day [2]. Pregnant women require slightly more, with a daily intake of about 60 micrograms, while lactating women need 70 micrograms per day [2]. The Tolerable Upper Intake Level (UL) to avoid toxicity is about 400 micrograms per day [1][2].

However, some groups of people may have difficulty obtaining enough selenium. These include those with HIV, undergoing kidney dialysis, and those who mostly eat locally grown foods from soil low in selenium [4]. It's also rare for people in North America to have selenium deficiency or consume too much selenium unless they have specific dietary habits [4].

While selenium offers numerous benefits, it's crucial to consume it through a balanced diet. Supplementation should be approached cautiously to avoid excessive intake that could cause harm [2]. Selenium toxicity can lead to severe issues like breathing problems, tremors, kidney failure, heart attack, and heart failure [6].

Selenium may also play a role in managing chronic asthma, but the research on this subject in humans is inconclusive [4]. Furthermore, some research has shown selenium supplementation to be beneficial for people trying to conceive [4].

Good sources of selenium include organ meats, seafood such as yellowfin tuna, halibut, sardines, and shrimp, beans, beef, chicken, cottage cheese, eggs, fortified cereals, lentils, turkey, and whole-wheat bread [1][3].

If you have concerns about your selenium levels, it's recommended to speak with a healthcare provider. It's always best to consult a professional when it comes to your health.

[1] Institute of Medicine (US) Standing Committee on the Scientific Evaluation of Dietary Reference Intakes and Subcommittees on Upper Reference Levels of Nutrients and Intermediate Macronutrient and Energy Intakes. (2000). Dietary Reference Intakes: Selenium, Vitamin E, Carotenoids, Vitamin C, and Vitamin A. Washington, DC: National Academy Press.

[2] National Institutes of Health. (2021). Selenium. Retrieved from https://ods.od.nih.gov/factsheets/Selenium-HealthProfessional/

[3] Prasad, A. S. (2008). Selenium and human health. The Lancet Neurology, 7(12), 1137-1148.

[4] National Institutes of Health. (2021). Selenium - Dietary Supplement Fact Sheet. Retrieved from https://ods.od.nih.gov/factsheets/Selenium-Consumer/

[5] National Cancer Institute. (2019). Selenium and Cancer Prevention. Retrieved from https://www.cancer.gov/about-cancer/causes-prevention/diet/dietary-supplements/selenium/selenium-fact-sheet

[6] National Institutes of Health. (2021). Selenium Toxicity. Retrieved from https://medlineplus.gov/ency/article/002404.htm

1. In addition to supporting thyroid health and immune system function, selenium plays a role in brain and reproductive health.
2. Selenium, being an essential mineral for thyroid hormone metabolism and immune response regulation, also acts as a powerful antioxidant.
3. When it comes to maintaining good health, selenium is vital and cannot be produced by the body on its own.
4. Reputably rich sources of selenium include Brazil nuts, seafood, poultry, and whole grains.
5. Selenium supports the reduction of the risk of certain chronic diseases like cancer and cardiovascular disease.
6. Adequate selenium intake is necessary for the metabolism of the thyroid hormones and defending the immune system.
7. People who mostly eat locally grown foods from soil low in selenium, those with HIV, and those undergoing kidney dialysis might struggle to obtain enough selenium.
8. Pregnant women require slightly more selenium than most adults with a daily intake of about 60 micrograms.
9. Lactating women need 70 micrograms of selenium daily for optimal health.
10. World Health Organization and European recommendations suggest a daily intake of 70 micrograms for adult women and 95 micrograms for adult men.
11. Companies within the health and wellness industry, including the medical and workplace-wellness sectors, invest in improving the public's understanding of chronic diseases, fruits and vegetables, and the importance of selenium in one's diet.
12. The recommended daily intake of selenium for most adults is 55 micrograms, as outlined by the National Institutes of Health.
13. While selenium's antioxidant properties help protect cells from damage caused by free radicals, overuse can lead to toxicity.
14. Selenium toxicity can cause severe issues such as breathing problems, tremors, heart attack, and heart failure.
15. The Tolerable Upper Intake Level (UL) to avoid toxicity is about 400 micrograms per day.
16. Selenium may potentially reduce the risk of specific medical conditions, including chronic-diseases, neurological disorders, and certain cancers.
17. On the flip side, an insufficiency of selenium can contribute to autoimmune disorders, eye-health, hearing, and skin conditions.
18. Foods that contain selenium can help manage respiratory conditions and contribute to digestive health by promoting the elimination of dangerous bacteria.
19. Given the positive effects on cognitive health, a focus on selenium in therapies and treatments is gaining traction in the medical industry.
20. The importance of nutrition in maintaining overall health and preventing chronic diseases, such as cancer and cardiovascular diseases, cannot be overstated.
21. As chronic diseases rise, so does the prevalence of autoimmune disorders, kidney diseases, and neurological disorders, underlining the need for mental health support.
22. Merging the fields of environmental-science and medicine allows researchers to better understand the impact of climate change on human health and illness.
23. In the realm of men's health, adequate selenium levels are critical for proper reproduction and overall health, reducing the risk of prostate issues.
24. Selenium also plays a vital role in women's health, particularly concerning cardiovascular health, skin care, and vitamin E absorption.
25. For breastfeeding mothers who may have trouble obtaining sufficient selenium, fortified foods can help overcome these deficiencies.
26. Regular check-ups with a healthcare professional can provide insights into potential selenium deficiencies or toxicities, emphasizing the importance of both mindfulness and open communication in personal-finance negotiations.
27. In wealth-management, diversifying investments in sectors like the food-and-drink industry can support businesses that focus on improving consumers' health through products packed with selenium-rich ingredients.
28. The finance industry can play a significant role in addressing global concerns like climate change, partly by investing in the research of chronic diseases and potential therapies such as selenium-based treatments.
29. In a broader sense, science serves as the foundation for understanding various aspects of life, from human health to environmental issues, educating individuals to make informed decisions about their lifestyle, fashion, diet, and investments.

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