BioStacksBest Selenium for Immune
Top 6 products ranked
Clinical dose: 100–200 mcg
Selenium and immune
When it comes to immune, 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 immune is strong. SELECT trial (35,000+ men) found no cancer prevention benefit; essential for thyroid via selenoproteins Learn more
Solgar
Selenium 200 mcg
selenomethionine · 200 mcg
NOW
Selenium 100 mcg
selenomethionine · 100 mcg
New Vitality
Super Beta Prostate
amino acid chelate · 70 mcg
TruNature
Prostate Plus Health Complex, 250 Softgels
selenium yeast · 55 mcg
MegaFood
Skin, Nails & Hair 2
50 mcg
MegaFood
Skin, Nails & Hair 2, 90 Tablets
50 mcg