Iodine & Selenium

Info Synergy
Iodine → Selenium →
Info Synergy

Selenium is essential for thyroid hormone metabolism and works synergistically with iodine.

Mechanism

Selenium-dependent deiodinases convert T4 to active T3. Selenium also protects the thyroid from oxidative damage during hormone synthesis.

Recommendation

Both are important for thyroid health. Ensure adequate selenium when supplementing iodine.

Sources

Tolerable upper intake limits

Reference values for safe daily intake of these supplements.

Selenium
400.000 mcg
adults NIH ODS / IOM

Selenosis risk: hair loss, GI upset, fatigue, mild nerve damage.

Iodine
1100.000 mcg
adults NIH ODS / IOM

Excess can cause thyroid dysfunction.

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Medical Disclaimer: Noyemi provides information from published research for educational purposes only. This content is not medical advice and does not replace consultation with a qualified healthcare provider. Always consult your doctor before starting, stopping, or changing any supplement regimen, especially if you take medications or have existing health conditions.