Seleno-Iodide by Ortho Molecular Products – Thyroid and Antioxidant Support
Seleno-Iodide by Ortho Molecular Products provides a synergistic blend of iodine and selenium designed to support healthy thyroid support and antioxidant status. Each capsule delivers 3 mg of iodine from potassium iodide alongside 100 mcg of selenium sourced from SelenoExcell®, a highly bioavailable, organically bound selenium yeast. These two trace minerals work as partners in the body, since both are essential building blocks for producing and metabolizing thyroid hormones.
Iodine and selenium concentrate heavily in the thyroid gland and, in the case of iodine, in breast tissue as well. Seleno-Iodide was formulated to help maintain healthy iodine levels while providing selenium's antioxidant contribution, supporting a foundational approach to thyroid and tissue health for adults whose diets may not reliably supply these trace minerals.
Key Seleno-Iodide Benefits
- Supports healthy thyroid support and thyroid hormone synthesis
- Provides 3 mg of iodine from potassium iodide
- Delivers 100 mcg of highly bioavailable selenium (SelenoExcell®)
- Supports antioxidant status and helps reduce oxidative stress
- Supports healthy breast tissue through iodine's role in mammary health
How Seleno-Iodide Works
Iodine is one of the core building blocks of the thyroid hormones thyroxine (T4) and tri-iodothyronine (T3), with T3 acting as the most metabolically active form that binds receptors in the liver and brain to help regulate gene expression. Beyond its role in hormone synthesis, iodine also functions as an antioxidant, acting as an electron donor that helps neutralize free radical damage in tissues including the thyroid, eyes, and gastrointestinal lining. Selenium works alongside iodine as a required cofactor for the iodothyronine deiodinase enzymes, which convert the less active T4 into the more active T3. SelenoExcell® provides selenium in an organically bound, highly bioavailable form close to what is found in nature, supporting the enzymatic machinery that keeps thyroid hormone conversion running smoothly.
Key Functional Ingredients Include:
- Iodine (from Potassium Iodide): An essential trace mineral required for the synthesis of thyroid hormones T3 and T4, and studied for antioxidant activity in thyroid and mammary tissue.
- Selenium (as SelenoExcell®, a High Selenium Yeast): A 2025 randomized controlled trial found selenomethionine-enriched yeast supplementation supported thyroid hormone parameters in hypothyroid patients; selenium is a required cofactor for enzymes that convert T4 to the active T3 hormone.
Seleno-Iodide Is Formulated For
- Adults seeking foundational thyroid support nutrients
- Individuals wanting a bioavailable selenium and iodine combination
- Those interested in supporting antioxidant status alongside thyroid health
Supplements support your health but do not replace a balanced diet. Always check with your healthcare practitioner if you have doubts about a new supplement. Or you may book a FREE product consultation with Holistic Health Partners, led by Carolyn Mulally BS, RN, HN-BC. You may also wish to explore our other Thyroid Support Supplements, Anti-Oxidants Supplements, and Women's Supplement Products collections.
Recommendation: Ortho Molecular Products suggests taking 1 capsule per day or as recommended by your health care professional.
Serving Size: 1 Capsule
Servings Per Container: 90
Iodine (from Potassium Iodide) ... 3 mg
Selenium (as SelenoExcell® (a High Selenium Yeast)) ... 100 mcg
Other Ingredients: Natural Vegetable Capsules, Microcrystalline Cellulose, Magnesium Stearate, and Silicon Dioxide.
Does Not Contain: Gluten, artificial colors and flavors.
Warnings/Cautions: If you are pregnant or nursing, consult your health care professional before taking Seleno-Iodide.
Frequently Asked Questions About Seleno-Iodide
What are the main health benefits of Seleno-Iodide?
Seleno-Iodide supports healthy thyroid support through 3 mg of iodine and 100 mcg of highly bioavailable selenium, both of which contribute to thyroid hormone synthesis and antioxidant status. As with any supplement, individual results vary and this product is not intended to replace medical treatment.
How does Seleno-Iodide work in the body?
Seleno-Iodide provides iodine, a core building block of thyroid hormones T3 and T4, alongside selenium, which acts as a required cofactor for the enzymes that convert T4 into the more metabolically active T3. Together they support the thyroid's hormone production and conversion pathway.
Who should consider taking Seleno-Iodide?
Seleno-Iodide is formulated for adults seeking foundational thyroid support and antioxidant status support. Anyone who is pregnant or nursing, has an underlying thyroid condition, or takes thyroid medication should speak with a healthcare practitioner before starting Seleno-Iodide.
Are there any side effects associated with Seleno-Iodide?
The label for Seleno-Iodide specifically advises that individuals who are pregnant or nursing should consult their health care professional before taking this product. Because iodine and selenium intake should be individualized, especially for those with existing thyroid conditions, discontinue use and consult a healthcare practitioner if you notice any unexpected reaction.
These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease.
