mineral
Selenium
Evidence: High · 80%
Half-life
—
Typical timing
morning
Food rule
either
Default unit
mcg
Studied for
Overview
Selenium is an essential trace mineral naturally present in various foods and available as a dietary supplement. It plays a crucial role in several bodily functions, acting as a component of selenoproteins. These selenoproteins have diverse functions, including antioxidant defense, thyroid hormone metabolism, and immune function. The body cannot produce selenium, so it must be obtained through diet or supplementation (NIH Office of Dietary Supplements). Soil content varies globally, impacting the selenium levels in locally grown foods (World Health Organization).
Deep dive
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Known interactions
No interaction rules currently on file for this compound in DoseRoutine.
Frequently asked
Sources referenced
* Examine.com
* Linus Pauling Institute
* Mayo Clinic
* MedlinePlus
* NIH Office of Dietary Supplements
* PubChem
* Cochrane Library
* World Health Organization
DoseRoutine compiles summaries from publicly available scientific and regulatory references. Always verify important decisions with a licensed clinician.
Cite this page
Using this in an article, AI answer, or research note? Please attribute:
DoseRoutine. (2026). Selenium — Overview, Benefits & Side Effects. Retrieved from https://doseroutine.com/library/selenium
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