Dosage · Supplement
Selenium: dosage and how to take it
Modest dose or 1–2 Brazil nuts; avoid high-dose standalone.
- Overall grade
- Grade C
- Last revised
- 0
- graded outcomes
- 0
- references listed
Assembled by the app from other entries in this library. It adds no evidence of its own — follow the links to the entries it draws on.
The evidence in words
How much to take
A couple of Brazil nuts or a modest multivitamin dose covers requirements. Therapeutic use in thyroid disease belongs under a clinician; avoid standalone high-dose selenium.
Timing & separation
There are no strict timing conflicts on record for Selenium; consistency matters more than the exact hour for most goals.
Why the dose is what it is
Selenoproteins recycle antioxidants and convert thyroxine (T4) to active T3, tying selenium to both oxidative defense and thyroid function.
Bottom line
Get enough (a Brazil nut or two), avoid megadosing. The 'antioxidant prevents cancer' pitch failed in trials and high intakes carry real downsides.
How it is used
As the entry records it, from the studies it summarises. Not a recommendation for you — doses that suit a trial population may not suit you.
- Adequacy
- Modest dose or 1–2 Brazil nuts; avoid high-dose standalone.
Goes with
- SeleniumFull Selenium monographEvidence grade C
Related reading
Entries that share this one's tags or conditions.
- Astaxanthin: dosage and how to take it4–12 mg/day with fat.Evidence grade C
- Chaga: dosage and how to take itAvoid high doses (oxalates).Evidence grade D
- Glutathione: dosage and how to take it250–1,000 mg/day liposomal, or NAC+glycine.Evidence grade C
- Iodine: dosage and how to take itIodized salt / seafood; ~150 µg in pregnancy prenatals.Evidence grade B
Sources
This entry lists no references of its own — it is assembled from the entries it links to, whose sources are on their pages.
Last revised . A grade is this entry's reading of the evidence, not medical advice.