Selenium is an essential trace element. It is known to be an important cofactor in a variety of biological processes including: thyroid hormone production, antioxidants, glutathione pathway, immune response and mitochondrial function.
Deficiency manifests as both Keshan syndrome, a cardiomyopathy prevalent amongst children and women, and Kashin-Beck disease, which causes osteoarthropathy primarily afflicting children. These conditions typically arise in selenium-restricted diets, such as secondary to long-term parenteral nutrition, or deficiency due to the presence of an inborn error of metabolism.
Selenium has a low threshold of toxicity, commencing at approximately 10 times the dietary requirement.
|<1 month||:|| 0.2-0.6 μmol/L
|1 month-16 years||:|| 0.4-1.4 μmol/L
|>16 years||:||0.8-1.75 μmol/L|
Trace element free (royal blue top)