Frequently Asked Questions

Will eating soy foods decrease my thyroid function and energy level?

There is some concern about the consumption of soy foods potentially decreasing thyroid function but not an overly large concern. One way to check this would be to ask your doctor to evaluate your thyroid function level by some routine blood tests. I had this done one year after changing my diet to include soy foods on a daily basis and my doctor did increase my synthroid medication level up a tiny bit. I have not needed a change in dosage since 1996. I have more energy than I know what to do with.

Hope this info is helpful. It is not medical advise, of course. Please discuss these concerns with your personal health care professionals.

FAQ posted 1/01, updated 5/05

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These questions and answers are intended to be of a general informative nature. Please consult with the Registered Dietitian in your cancer center or your health care provider for nutritional advice that can be individualized to your specific medical condition.