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There are no current guidelines to prevent hyperthyroidism.

Taking too much thyroid hormone replacement can also result in hyperthyroidism. Follow your treatment plan and get blood tests done regularly. In some cases, excess iodine intake, such as kelp supplements, may cause hyperthyroidism.


Hyperthyroidism and thyrotoxicosis. EBSCO DynaMed Plus website. Available at: Updated March 21, 2016. Accessed October 4, 2016.

Kasper DL, Harrison TR. Harrison's Principles of Internal Medicine. 16th ed. New York, NY: McGraw-Hill; 2005.

Vaidya B, Pearce SH. Diagnosis and management of thyrotoxicosis. Brit Med J. 2014;349:g5128.

Last reviewed December 2015 by Kim A. Carmichael, MD

Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition.

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