Best Supplements for Thyroid Support
The thyroid controls metabolic rate, energy, temperature, and hormone balance. Optimal function requires specific micronutrients for hormone production and conversion.
Top 5 Recommended Supplements
Selenium
200mcgCofactor for deiodinase enzymes that convert T4 to active T3. Also reduces thyroid antibodies in Hashimoto's
Buy on Amazon →Iodine
150-300mcgBuilding block of thyroid hormones (T3 has 3 iodine atoms, T4 has 4). Deficiency is common globally
Buy on Amazon →Zinc
30mgRequired for TSH production, T4 to T3 conversion, and thyroid hormone receptor function
Buy on Amazon →Vitamin D3
4,000 IUVitamin D deficiency strongly associated with autoimmune thyroid disease. Supports immune regulation
Buy on Amazon →Iron
Test and supplement if deficientRequired for thyroid peroxidase enzyme. Iron deficiency impairs thyroid hormone synthesis
Buy on Amazon →Sample Daily Stack
Morning: Selenium (200mcg) + Zinc (30mg) + Iodine (150mcg) with breakfast
Separate from thyroid medication by 4 hours
With breakfast: Vitamin D3 (4,000 IU)
If deficient: Iron (bisglycinate) with vitamin C, away from thyroid meds
Lifestyle Tips
Take thyroid medication on empty stomach, 60 min before food or supplements
Avoid excessive raw cruciferous vegetables if thyroid is compromised (cooking deactivates goitrogens)
Manage stress — cortisol impairs T4 to T3 conversion
Get full thyroid panel: TSH, Free T4, Free T3, reverse T3, antibodies
Avoid fluoride and bromine which compete with iodine
Recommended
This information is for educational purposes only and does not constitute medical advice. Supplement recommendations are based on published research but individual needs vary. Always consult a qualified healthcare professional before starting any supplement regimen. Amazon links are affiliate links.