Soy: Does it worsen hypothyroidism?

content provided by mayoclinic.com

Soy: Does it worsen hypothyroidism?

Question

Is it true that people who have hypothyroidism should avoid soy?

Mary
No state given

Answer

Whether people who have hypothyroidism should avoid soy is a topic of considerable debate.

Hypothyroidism is generally treated with synthetic thyroid hormone — and soy has long been thought to interfere with the body's ability to absorb the medication. However, there's no evidence that people who have hypothyroidism should avoid soy completely.

If you have hypothyroidism, take thyroid hormone replacement as directed by your doctor — typically on an empty stomach. Generally, it's best to wait four hours after taking thyroid medication to consume any products that contain soy. The same guidelines apply to other products that may impair the body's ability to absorb thyroid medication, including high-fiber foods, iron and calcium supplements, and antacids that contain aluminum or magnesium.

Last Updated: 2010-12-18
© 1998-2014 Mayo Foundation for Medical Education and Research (MFMER). All rights reserved. A single copy of these materials may be reprinted for noncommercial personal use only. "Mayo," "Mayo Clinic," "MayoClinic.com," "Mayo Clinic Health Information," "Reliable information for a healthier life" and the triple-shield Mayo logo are trademarks of Mayo Foundation for Medical Education and Research.

Terms and conditions of use

 

Bookmark and Share   E-Mail Page   Printer Friendly Version