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Potassium Iodide (KI) Fact Sheet: What You Should Know
March 28, 2011 04:53 PM
Facts About Potassium Iodide (KI)
1. Potassium iodide, or KI is an over-the-counter drug and an additive to food, including dietary supplements.
2. Potassium iodide can be found naturally in many types of seaweed - particularly those grown in iodine rich environments, such as brown algae, kelp and bladderwrack - as well as in some salt water fish.
3. Commercial table salt, specifically iodized salt, and dairy products such as low fat yogurt, milk, and some cheeses also can be significant sources of the recommended allowance (RDA) of iodine.
4. Additionally, dietary supplements can contain seaweed or other potassium iodide sources, and should be calculated in ones daily intake.
5. The amount of potassium iodide in dietary supplements for nutritional and thyroid support is more likely to be measured in micrograms (a microgram is 1/1000 of a milligram).
Radiation and Potassium Iodide (KL)
1. The recommended adult dosage of KI in cases of radiation exposure is 130 milligrams, far higher than the normal nutritional need of 0.15 milligrams, or 150 micrograms, per day for an adult (RDA recommendation).
2. The consequences of iodine poisoning from overdosing can be extremely serious, and include nausea, seizures, vomiting, and shock.
3. KI protects only the thyroid gland against radiation exposure for approximately 24 hours per dose. KI should be taken within three hours of exposure.
For More Information:
1. U.S. Food and Drug Administration (FDA), Radiation Safety: www.fda.gov
2. Centers for Disease Control and Prevention (CDC), Radiation: www.cdc.gov
**Please note: you should only take KI on the advice of emergency management officials, public health officials, or your doctor – but never as a preventative measure in the doses recommended for radiation treatment.