Selenium is essential for deiodinase enzymes that convert T4 to active T3. Adequate selenium may improve thyroid medication effectiveness, especially in autoimmune thyroiditis (Hashimoto's).
Recommendation
200 mcg selenium may support thyroid function. Don't exceed this dose.
Timing
Can take separately from thyroid medication
Sources
— Journal of Clinical Endocrinology & Metabolism
— PMID: 12213876
Frequently Asked Questions
Can I take selenium and thyroid medication together?
Selenium supports thyroid hormone conversion. 200 mcg selenium may support thyroid function. Don't exceed this dose.
How should I time selenium and thyroid medication?
Can take separately from thyroid medication
Is this interaction dangerous?
This interaction is rated “Info” by Formulate. Selenium is essential for deiodinase enzymes that convert T4 to active T3. Adequate selenium may improve thyroid medication effectiveness, especially in autoimmune thyroiditis (Hashimoto's).
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