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← Compounds

Selenium

supplement · adjunctOTC

Selenoprotein cofactor; lowers thyroid autoantibodies

Summary

Trace mineral; selenium supplementation can reduce TPO antibodies in autoimmune thyroiditis.

How it works

  • Selenoprotein/glutathione-peroxidase cofactor
  • ↓ thyroid autoantibodies

Dosing

  • unit: mcg
    frequency: daily
    standard dose: 200
    administration route: Oral

Cycling

  • Continuous

Side effects

common: ["Well tolerated at 200 mcg"]
warnings: ["Selenosis at high chronic doses"]

Verified citations

2 · PubMed-checked
  • Is selenium supplementation in autoimmune thyroid diseases justified?reviewPMID 28639965 ↗
  • Selenium, Iodine and Iron-Essential Trace Elements for Thyroid Hormone Synthesis.mechanismPMID 36834802 ↗

Used for

No condition evidence rows yet.

Legal / compounding

OTC

Legal status is a hard gate: non-compoundable or delisted agents cannot be filled and are blocked from protocol export. Keep 503A status current.