Selenium version
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Summary
4 papers analyzed
These studies suggest that selenium is an essential micronutrient with potential health benefits, but excessive intake may be harmful, and its relationship with type 2 diabetes is unclear, while also being a tool for software quality assurance.
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Selenium: Essential Microelement and Its Role in Health
Importance of Selenium in Biological Functions
Selenium is a crucial microelement necessary for various biological functions. It is a component of at least 25 human selenoproteins, which are involved in essential processes such as regulating reactive oxygen species (ROS) and hormone biosynthesis. These functions are vital for maintaining health and preventing diseases. Selenium's role in these processes underscores its importance in human health.
Selenium and Disease Prevention
Cancer, Diabetes, and Neurodegenerative Diseases
Adequate selenium levels are associated with a reduced risk of several diseases, including cancer, diabetes, and neurodegenerative disorders like Alzheimer's disease. Selenium's antioxidant properties help in mitigating oxidative stress, which is a common factor in these diseases . However, the relationship between selenium and type 2 diabetes (T2D) is complex. Observational studies have shown a positive association between high selenium levels and increased odds of T2D, while randomized clinical trials did not find a significant risk increase. This discrepancy suggests that more research is needed to understand selenium's role in glucose metabolism and diabetes risk.
Cardiovascular and Mental Health
Selenium also plays a role in cardiovascular health and mental well-being. Its involvement in reducing inflammation and oxidative stress contributes to its protective effects against cardiovascular diseases and mental disorders. Ensuring adequate selenium intake could therefore be beneficial in managing these conditions.
Selenium in Diet and Supplementation
Sources and Absorption
Selenium is found in both organic and inorganic forms in food. Organic forms, such as selenomethionine and selenocysteine, are more easily absorbed by the human body compared to inorganic forms like selenite and selenate. Foods rich in selenium include Brazil nuts, seafood, and organ meats. For individuals with selenium deficiencies, selenium-enriched foods or supplements can help meet their nutritional needs.
Risks of Over-Supplementation
While adequate selenium intake is beneficial, excessive selenium levels can have adverse effects. Supra-nutritional selenium levels may lead to toxicity and other health issues. Therefore, it is important to balance selenium intake to avoid both deficiency and excess.
Conclusion
Selenium is an essential microelement with significant roles in various biological functions and disease prevention. Adequate selenium intake is crucial for maintaining health, but it is important to avoid over-supplementation. Further research is needed to fully understand the complex relationship between selenium and diseases like type 2 diabetes. Ensuring a balanced selenium intake through diet or supplements can help harness its health benefits while minimizing risks.
Sources and full results
Most relevant research papers on this topic
4
Selenium – A Trending Automation Testing Tool
4
1 Citations
2020