We are living in a time where supplements are often marketed as essential for “optimal health” especially when it comes to thyroid function.

And iodine is one of the most commonly recommended. It sounds simple. It sounds preventative. But for most women in the U.S., it’s unnecessary — and in some cases, harmful.

In this episode of Endocrine Matters, Dr. Arti Thangudu breaks down what iodine actually does, why most women don’t need supplementation, and how taking too much can lead to real thyroid disease.

This episode explores:

🧠 What iodine actually does in the body and thyroid function

📊 Why the United States is considered iodine sufficient

⚠ How iodine supplementation can cause both hypothyroidism and hyperthyroidism

🔍 Why iodine testing is often misleading and not clinically useful

💊 The risks of high-dose iodine and kelp-based supplements

📈 How excess iodine can trigger or worsen autoimmune thyroid disease

🩺 What to look for on supplement labels and when to avoid them

Dr. Thangudu also shares real patient cases where unnecessary iodine supplementation led to serious thyroid dysfunction — including situations where patients were told they needed surgery for a problem caused entirely by a supplement.

This episode is about understanding risk in a space that is often oversimplified. Because more is not always better — and when it comes to your thyroid, too much iodine can be just as harmful as too little.

About the Host

Dr. Arti Thangudu is a board-certified endocrinologist specializing in endocrinology, diabetes, and metabolism, with additional certification in Lifestyle Medicine and menopause care. She focuses on evidence-based care, metabolic health, hormone health, and improving transparency in healthcare.

In This Episode You’ll Learn

• Why most women in the U.S. do not need iodine supplements

• The difference between iodine deficiency and iodine excess

• How excess iodine can cause thyroid dysfunction

• Why iodine testing is not reliable for individuals

• What to look for in thyroid and supplement labels

• When iodine supplementation is actually appropriate (pregnancy)

Resources Mentioned

If you’re concerned about your thyroid or iodine intake, consider discussing:

• Thyroid function testing (TSH, Free T4, etc.)

• Evaluation for autoimmune thyroid disease (Hashimoto’s, Graves’)

• Review of supplement use and ingredient labels

• Prenatal vitamins with iodine if pregnant or breastfeeding

Learn More / Connect

✨ See Dr. Thangudu in clinic:

Complete Medicine → https://www.sacomplete.com/💌 Stay connected:

Sign up for the newsletter → https://www.sacomplete.com/complete-medicine-blog

📲 Follow Dr. Arti Thangudu

Instagram → https://www.instagram.com/drartithangudu

About Endocrine Matters

Endocrine Matters is a podcast dedicated to hormone health, metabolic health, thyroid disease,

menopause, obesity medicine, and evidence-based healthcare education.

Each episode breaks down complex medical topics so patients can make informed, empowered

decisions about their health.