Why Aging Is Not a Fat Problem — A Muscle-Centric Approach to Longevity
Tue Jan 20 2026
What if obesity and metabolic dysfunction start in the muscle, not the fat tissue we usually measure? In this episode of New Frontiers in Functional Medicine, Dr. Kara Fitzgerald and Dr. Gabrielle Lyon unpack this emerging science, from intramuscular adipose tissue to protein needs, anabolic resistance, fatty liver disease, and the role of muscle in healthy aging. A compelling episode with immediate takeaways for clinical practice.
Check out the show notes at https://www.drkarafitzgerald.com/fxmed-podcast/ for the full list of links and resources.
GUEST DETAILS
Dr. Gabrielle Lyon is the physician behind Muscle-Centric Medicine®, a groundbreaking approach that reframes muscle as the key driver of metabolic health, aging, and resilience. She is the bestselling author of FOREVER STRONG and the forthcoming Forever Strong Playbook, which translates her science-backed principles into practical strategies for building lifelong strength and capacity.
Website: https://drgabriellelyon.com/
Instagram: https://www.instagram.com/drgabriellelyon/
YouTube: https://www.youtube.com/@DrGabrielleLyon
THANKS TO OUR DIAMOND SPONSORS
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Time—Line Nutrition: https://tinyurl.com/bdzx2xms
EXCLUSIVE OFFERS FROM OUR SPONSORS
Find out why MitoQ’s mitochondria-targeting is a critical step for your healthspan and longevity strategy. http://mitoq.com/drkara
*CONNECT with DrKF*
Want more? Join our newsletter here: https://www.drkarafitzgerald.com/newsletter/ Or take our pop quiz and test your BioAge! https://www.drkarafitzgerald.com/bioagequiz
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Younger You book: https://tinyurl.com/mr4d9tym
Better Broths and Healing Tonics book: https://tinyurl.com/3644mrfw
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What if obesity and metabolic dysfunction start in the muscle, not the fat tissue we usually measure? In this episode of New Frontiers in Functional Medicine, Dr. Kara Fitzgerald and Dr. Gabrielle Lyon unpack this emerging science, from intramuscular adipose tissue to protein needs, anabolic resistance, fatty liver disease, and the role of muscle in healthy aging. A compelling episode with immediate takeaways for clinical practice. Check out the show notes at https://www.drkarafitzgerald.com/fxmed-podcast/ for the full list of links and resources. GUEST DETAILS Dr. Gabrielle Lyon is the physician behind Muscle-Centric Medicine®, a groundbreaking approach that reframes muscle as the key driver of metabolic health, aging, and resilience. She is the bestselling author of FOREVER STRONG and the forthcoming Forever Strong Playbook, which translates her science-backed principles into practical strategies for building lifelong strength and capacity. Website: https://drgabriellelyon.com/ Instagram: https://www.instagram.com/drgabriellelyon/ YouTube: https://www.youtube.com/@DrGabrielleLyon THANKS TO OUR DIAMOND SPONSORS Biotics Research: https://bit.ly/2IHK6Xd DUTCH: https://dutchtest.com/for-providers Time—Line Nutrition: https://tinyurl.com/bdzx2xms EXCLUSIVE OFFERS FROM OUR SPONSORS Find out why MitoQ’s mitochondria-targeting is a critical step for your healthspan and longevity strategy. http://mitoq.com/drkara *CONNECT with DrKF* Want more? Join our newsletter here: https://www.drkarafitzgerald.com/newsletter/ Or take our pop quiz and test your BioAge! https://www.drkarafitzgerald.com/bioagequiz YouTube: https://tinyurl.com/hjpc8daz Instagram: https://www.instagram.com/drkarafitzgerald/ Facebook: https://www.facebook.com/DrKaraFitzgerald/ DrKF Clinic: Patient consults with DrKF physicians including Younger You Concierge: https://tinyurl.com/yx4fjhkb Younger You Practitioner Training Program: www.drkarafitzgerald.com/trainingyyi/ Younger You book: https://tinyurl.com/mr4d9tym Better Broths and Healing Tonics book: https://tinyurl.com/3644mrfw