BioStacksBest Selenium for Hormones
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Clinical dose: 100–200 mcg
Selenium and hormones
When it comes to hormones, Selenium is one of the most supporting nutrients to consider. Essential component of selenoproteins including glutathione peroxidase (antioxidant defense) and deiodinases (thyroid hormone activation). Selenomethionine is the most bioavailable supplemental form, while sodium selenite is inorganic and less efficiently absorbed. Brazil nuts are the richest food source—just 1–2 nuts can meet the daily requirement.
How much selenium do you need
Research points to 100–200 mcg as the effective range for selenium. Common supplement dose; UL is 400 mcg/day. Lower doses may provide some benefit, but most studies showing clear results used this range.
Which form absorbs best
Avoid sodium selenite — inorganic, lower retention. The most bioavailable options are selenomethionine.
What the research says
The clinical evidence for selenium in hormones is strong. SELECT trial (35,000+ men) found no cancer prevention benefit; essential for thyroid via selenoproteins Learn more
