Selenium is a trace mineral that is important for thyroid function and immune health. Low levels of selenium can cause thyroid disorders and impaired immune function.

iollo markers that associate with Selenium*


Cysteine is an amino acid that contains a sulfur group. The selenium analog of cysteine, selenocysteine, is directly incorporated into selenoproteins. Cysteine and selenocysteine are structurally related.


Methionine is an amino acid that contains a selenium atom. Selenium is incorporated into selenoproteins in the body, many of which have antioxidant functions. Methionine levels may reflect selenium status.


Taurine is an organic compound that contains a sulfur group and has antioxidant properties. Selenium has a similar electronic structure to sulfur. Taurine and selenium may have overlapping roles in redox biochemistry.