Best Iodine Mineral Supplements for Daily Thyroid Support (2026)
We ranked supplements by iodine form and dose suitability for daily use, ingredient transparency (including added nutrients), quality certifications, user ratings, and overall value
Top Picks
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1
Sea Kelp Enhanced Iodine - 200 mcg iodine, 135 mg algae blend (90 capsules)
Iodine supplement from sea kelp and algae blend with 200 mcg iodine per serving. Supports thyroid health; customers report sustained energy and sleep benefits. Note: some users experience stomach pain and bloating
- iodine 200 mcg per serving
- 135 mg proprietary algae/sea kelp blend
- US GMP certified manufacturing
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2
Organically Bound Minerals for Thyroid & Nervous System
Whole food iodine source with alfalfa and kelp supporting thyroid function and nervous system health. Customers note high quality and energy improvements, though opinions vary on pill swallowability
- iodine from alfalfa and kelp
- whole food-based minerals
- thyroid and hormone health support
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3
Iodoral 12.5 mg: Potassium Iodide Tablets for Thyroid Support
Potassium iodide tablets for thyroid support and iodine balance. Provides thyroid hormone support and may aid energy and well-being; praised for ease of use vs. liquid drops
- potassium iodide thyroid support
- easy-to-use tablets
- high customer rating
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4
Iodine with Selenium - thyroid support, 120 capsules
Designs for Health iodine-selenium supplement with 10 mg iodine and 40 mcg selenium. Supports thyroid function with antioxidant benefits; non-GMO, gluten-free, vegetarian-friendly. Customer notes quality and thyroid support, mixed views on dosage and value
- 10 mg iodine per capsule
- 40 mcg selenium (selenium-methionine)
- synergistic iodine-selenium formula