Wits & Weights | Strength & Fat Loss Over 40

The Forgotten Thyroid Hormone That Supercharges Fat Loss and Metabolism (Dr. Amie Hornaman) | Ep 424

• Dr. Amie Hornaman • Episode 424

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0:00 | 55:57

Are you lifting weights, tracking macros, and still stuck with stubborn fat? What if your labs look “normal” but your metabolism feels broken?

Body recomp is supposed to feel simpler when you train hard and eat well, yet many people chasing weight loss and muscle building feel stuck. I brought on Dr. Amie Hornaman, known as the Thyroid Fixer, to challenge the way we think about metabolism, hormone health, and strength training. We explored T2, a lesser-known thyroid hormone that acts directly at the mitochondria to help burn fat, boost energy, and protect lean mass.

This conversation matters if you care about nutrition and fitness, longevity, and strength training over 40, especially for women’s fitness and anyone frustrated by slow progress despite doing “everything right.” We connected evidence-based fitness, evidence-based nutrition, and smart supplementation, without hype or shortcuts.

Today, you’ll learn all about:

0:00 – Why metabolism feels broken
4:20 – The forgotten thyroid hormone
9:45 – T2 vs T3 and T4
15:30 – Fat loss without muscle loss
22:10 – Mitochondria and metabolism
28:40 – Appetite vs energy expenditure
35:55 – Strength training and thyroid health
44:30 – Hashimoto’s and lab myths
52:20 – Practical next steps

Episode resources:


💪 Join Eat More Lift Heavy, the 26-week coached program to build muscle and lose fat after 40

📱 Get Fitness Lab, the AI coaching app for strength training and nutrition over 40

 📊 Track your nutrition with MacroFactor and use code WITSANDWEIGHTS for a 2-week free trial 

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❓ Ask a question for the show

Educational content only, not medical advice.

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