#437: Unmasking Thyroid Dysfunction: How Optimizing Your Thyroid Transforms Longevity, Mood, and Metabolism With Dr. Amie Hornaman

Today, I’m joined by the incredible Dr. Amie Hornaman, a leading thyroid expert and author of the brand new book, The Thyroid Fix. In our conversation, Dr. Hornaman opens up about her personal struggle with undiagnosed thyroid disease—a journey marked by frustrating medical gaslighting and the dismissive “you’re normal” diagnoses from doctor after doctor. She reveals how that experience led her to become a passionate advocate for women (and men) suffering from thyroid dysfunction and a pioneer in holistic, root-cause approaches to healing.

Together, we unpack why thyroid issues often hide behind symptoms like stubborn weight gain, low mood, poor sleep, and cold hands—signs that are all too often overlooked by conventional medicine. Dr. Hornaman explains why “thyropause” deserves as much attention as menopause, how optimizing thyroid health can transform everything from brain function to metabolism, and why testing and treatment need to go far beyond the outdated TSH-only standard of care.

If you’re ready to understand just how pivotal the thyroid is for your long-term health and longevity, this episode is packed with practical insights, myth-busting science, and empowering advice for anyone who suspects their thyroid might be the real culprit behind lingering symptoms.

Learn more from Dr. Amie Hornaman below:

Website: https://dramie.com/

Book: https://thyroidfixbook.com/

Podcast: https://dramie.com/podcast/

What We Discuss:

Introduction and show purpose ... 00:00:00

Dr. Hornaman’s personal story and medical gaslighting ... 00:05:05

Journey to functional medicine and importance of symptom-based care ... 00:11:00

Recognizing key thyroid-related symptoms ... 00:14:51

Wearables and tracking thyroid-related trends ... 00:17:18

Understanding thyropause and hormone fluctuations after 40 ... 00:19:31

Impact of thyroid function on overall longevity and health ... 00:23:43

T4-only medication debate and need for personalized treatment ... 00:36:19

Why T4-only persists in conventional practice ... 00:40:40

T2, metabolism, mitochondrial health, and iodine ... 00:45:21

GLP-1 medications, thyroid optimization, and weight loss stories ... 00:50:16

Personalization of thyroid numbers and treatment ... 00:53:46

Functional versus conventional thyroid lab ranges ... 00:54:59

Thyroid’s connection to mood and mental health ... 00:56:42

When lifestyle alone can’t restore thyroid health ... 00:58:39

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Some episodes of the Longevity With Nathalie Niddam podcast are supported by partners whose products or services may be discussed during the show. The host may receive compensation or earn a minor commission if you purchase through affiliate links at no extra cost to you. All opinions shared are those of the host and guests, based on personal experience and research, and do not necessarily represent the views of any sponsor. Sponsorships do not imply medical endorsement or approval by any healthcare provider featured on this podcast.