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A Deep Dive on Iodine, Thyroid Nodules, and Goiters with Dr. Angela Mazza

EPISODE 256

A Deep Dive on Iodine, Thyroid Nodules, and Goiters with Dr. Angela Mazza

In this episode, Dr. Eric Osansky welcomes back Dr. Angela Mazza, a triple board-certified endocrinologist specializing in thyroid health, metabolic medicine, and integrative endocrine care. The discussion centers around two topics Dr. Mazza has recently published journal articles on: iodine and thyroid nodules. Together, they explore why iodine remains one of the most controversial nutrients in thyroid medicine and why individualized care is critical when determining whether supplementation is appropriate.

Dr. Mazza explains the delicate balance of iodine intake, discussing why both deficiency and excess can create thyroid problems. She also shares her approach to iodine testing, addresses common misconceptions about iodine supplementation, and discusses special considerations for Hashimoto’s thyroiditis, Graves’ disease, pregnancy, and breastfeeding. The conversation then shifts into thyroid nodules, where Dr. Mazza explains the most common causes of nodule formation, the role of inflammation, estrogen, insulin resistance, environmental toxins, and genetics, along with how toxic nodules differ from non-functioning nodules.

The episode wraps up with an in-depth discussion on goiters, radiofrequency ablation (RFA), thyroid cancer, and modern alternatives to surgery. Dr. Mazza also explains how she evaluates thyroid nodules using ultrasound and shares her perspective on personalized treatment approaches. If you want a clearer, more balanced understanding of iodine, thyroid nodules, and goiters, you’ll get a lot out of this episode.

Episode Timeline:

00:00 – Introduction to iodine, nodules, and goiters
01:55 – Meet Dr. Angela Mazza
03:01 – Radiofrequency ablation vs. radioactive iodine
04:33 – Why Dr. Mazza researched iodine
06:28 – Common myths about iodine supplementation
08:15 – Why iodine is essential for thyroid hormone production
09:58 – Natural iodine sources and supplementation concerns
10:20 – Too much iodine: hyperthyroidism and hypothyroidism risks
11:08 – The challenge of iodine testing
13:18 – Iodine loading tests explained
15:37 – Can iodine trigger thyroid disease?
17:05 – High-dose iodine and thyroid nodules
18:59 – Goiters and iodine deficiency
20:21 – Correcting iodine deficiency safely
22:31 – Should everyone be tested for iodine?
23:23 – Multivitamins with iodine: safe or risky?
24:33 – Iodine considerations during pregnancy and breastfeeding
26:33 – Why thyroid nodules develop
27:20 – Inflammation, estrogen, and environmental toxins
28:58 – Insulin resistance and thyroid nodules
30:02 – What are toxic thyroid nodules?
31:19 – Treating toxic nodules with RFA
32:33 – RFA for thyroid cancer
35:27 – Diagnosing toxic nodules without radioactive iodine
38:01 – Cold nodules vs. hot nodules
41:18 – Castor oil packs for thyroid nodules
43:00 – Common causes of goiters
44:13 – Can goiters shrink naturally?
45:45 – Graves’ disease, Hashimoto’s, and fluctuating thyroid levels
47:22 – Block-and-replace therapy discussed
51:08 – RFA as a treatment option for large goiters
54:01 – Why Dr. Mazza performs thyroid ultrasounds routinely
55:43 – Key takeaways on personalized thyroid care
56:19 – Where to find Dr. Angela Mazza

Post-Episode Chat

57:27 – Amiodarone and iodine-induced thyroid dysfunction
58:14 – Iodine contrast agents and thyroid health
59:20 – Iodine during pregnancy
59:46 – The best ways to test for iodine deficiency
01:00:35 – Should everyone test iodine levels?
01:01:31 – Addressing iodine deficiency naturally
01:02:19 – Root causes of thyroid nodules
01:02:54 – Managing toxic thyroid nodules
01:03:33 – Block-and-replace therapy revisited
01:04:29 – Final thoughts on iodine and thyroid health

About Dr. Angela Mazza

Dr. Angela Mazza is a triple board-certified endocrinologist specializing in thyroid health, metabolic medicine, obesity medicine, and anti-aging care. She is certified in thyroid ultrasound and biopsy procedures and is one of the few physicians in Central Florida performing radiofrequency ablation (RFA) for thyroid nodules. Dr. Mazza is the founder of the Metabolic Center for Wellness, host of the Thyroid Talk podcast, author of Thyroid Talk: An Integrative Guide to Optimal Thyroid Health, and has contributed extensively to thyroid-related research, publications, and international presentations.

Connect with Dr. Angela Mazza

 

Related Links:

Click Here for Dr. Mazza’s journal article on iodine and thyroid health

Click Here for Dr. Mazza’s journal article on thyroid nodules

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