Product Reviews
Potassium Iodide (KI) and Potassium Iodate (KIO3) Review Article: Radioprotective Agents

Reviewed and edited by Tod Cooperman, M.D. Tod Cooperman, M.D.
 Initial Posting: 6/25/02   Updated 3/18/11

Choose the Best Supplement to Protect the Thyroid From Radiation

Find Out Now Which Potassium Iodide or Iodate Supplements Passed Our Tests!

Alphabetical list of magnesium supplement brands in report
Make sure the potassium iodide or potassium iodate you take passed our test and is right for you!
Isn't your health worth it?
Potassium iodide and potassium iodate can protect the thyroid gland from the effects of radioactive iodine in the event of a nuclear accident, drastically reducing the risk of thyroid cancer. However, they are only effective if taken before or very shortly after exposure to radiation. These products, which are sold as both supplements and over-the-counter drugs, are typically sought by people living close to nuclear reactors and by others who may be exposed to radiation during nuclear accidents. purchased and tested six products to determine if they contained the labeled amounts of active ingredient. Tablets were further tested to determine if they disintegrated properly in solution — necessary for absorption by the body.

You must join to get the full test results for potassium iodide and potassium iodate supplements and over-the-counter products along with recommendations and quality ratings. You will get results for six products selected by 

In this comprehensive report, you'll discover:
    • Which potassium iodide and potassium iodate supplements passed testing
    • Direct comparisons and quality ratings of potassium iodide and iodate supplements 
    • Differences between potassium iodide (KI) and potassium iodate (KIO3)
    • Dosage recommendations for potassium iodide and potassium iodate by age -- including when and how often they should be taken 
    • Concerns, cautions, and potential side effects of potassium iodide and potassium iodate 

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March 2011:
Due to concerns over potential radiation exposure arising from damaged Japanese nuclear reactors, many people have recently sought potassium iodide and potassium iodate products and information about them. To assist, we have updated the list of products originally provided in this report. Some are no longer sold or have been replaced with newer products. See the  Update and the revised table in the report to find out where products may be purchased and their availability as of 3/18/11.

Learn More About Potassium Iodide Answers -- for Potassium Iodide (KI) and Potassium Iodate (KIO3) Review Article: Radioprotective Agents
I have heard that nascent iodine may be better than regular iodine or potassium iodide for thyroid support. Is this true, and what exactly is nascent iodine? Get the answer >>

Do any supplements help prevent or reduce eye floaters? Get the answer >>
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