Everyone is so quick to assume that iodine supplementation is needed as soon as you mention you have an underactive thyroid but if you have Hashimoto’s thyroid disease, please note that iodine can potentially flare up your condition.
Most thyroid supplements on the market contains iodine. This is because iodine stimulates the activity of the thyroid peroxidase (TPO) enzyme, which triggers thyroid hormone production – which is what you want when your thyroid is underactive.
BUT when you have Hashimoto’s, TPO is the target of your autoimmune attack, so when you stimulate TPO production, your immune system perceives it to be a foreign invader and mounts an attack which will flare up your Hashimoto’s.
Dr Datis Kharrazian, author of Why Do I Still Have Thyroid Symptoms When My Lab Tests Are Normal sums this up nicely:
“I simply believe, based on my research and clinical experience, that iodine is an unnecessary risk when managing Hashimoto’s, especially since we have safer and more effective ways to work with a improperly functioning immune system.”
You can read more about this on Dr Kharrazian’s blog here