The Bile Acid Imbalance Accelerating Aging: How to Detect & Fix It

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Dr. Kara Fitzgerald | New Frontiers in Functional Medicine, Longevity, Epigenetics

Dr. Kara Fitzgerald

203 episodes

1 week ago

Dr. Kara Fitzgerald sits down with Dr. Brooke Stubbs, an internal and lifestyle medicine physician who transitioned from hospital medicine to a concierge model focused on prevention and personalization. Together, they discuss how to design a practice that supports both patients and practitioners, from efficient systems and appropriate pricing to functional lab integration. Dr. Stubbs explains how Vibrant Wellness helps streamline diagnostics and ensure consistent, high-quality care, offering real-world insights for clinicians ready to evolve their model.

Check out the show notes at https://www.drkarafitzgerald.com/fxmed-podcast/ for the full list of links and resources.

GUEST DETAILS

Dr. Brooke Stubbs is a double board-certified physician in Internal and Lifestyle Medicine with a master’s in nutrition from Columbia University. As founder of Rooted Femme, a concierge practice in Austin, she helps women achieve better health through lifestyle-based care. She’s a national speaker, retreat creator, and advocate for integrating science, art, and compassion into modern medicine.

Website: https://www.rootedfemme.com/

LinkedIn Profile: https://www.linkedin.com/in/brookestubbsmd/

THANKS TO OUR SPONSOR

SPONSOR: Vibrant Wellness http://vibrant-wellness.com/drfitzgerald

Vibrant Wellness’ innovative testing panels identify key imbalances in areas like nutrition, hormones, toxins, and the gut microbiome—so you can take targeted steps toward optimal wellness. Discover the possibilities and become a provider or connect with one near you at http://vibrant-wellness.com/drfitzgerald

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

Health & Fitness

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Check out the show notes at https://www.drkarafitzgerald.com/fxmed-podcast/ for the full list of links and resources.

GUEST DETAILS

Website: https://www.rootedfemme.com/

LinkedIn Profile: https://www.linkedin.com/in/brookestubbsmd/

THANKS TO OUR SPONSOR

SPONSOR: Vibrant Wellness http://vibrant-wellness.com/drfitzgerald

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

Health & Fitness

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The Bile Acid Imbalance Accelerating Aging: How to Detect & Fix It

Dr. Kara Fitzgerald | New Frontiers in Functional Medicine, Longevity, Epigenetics

56 minutes 18 seconds

1 month ago

The Bile Acid Imbalance Accelerating Aging: How to Detect & Fix It

Have you ever struggled to understand why some patients just don’t respond as expected, even when you’re following all the usual gut protocols? In this episode, I sat down with Dr. Tom Fabian, who breaks down the latest insights from StoolOMX and GI-MAP testing and shows us how to put them into practice for our most complex cases. We dive into how identifying specific types of inflammation, bile acid patterns, and microbial imbalances can guide more precise interventions, whether it’s introducing fiber, addressing biofilms, or supporting secondary bile acid production. Dr. Fabian makes the science practical, helping us see not just what’s happening in the gut, but what to do about it in real-world clinical settings. ~DrKF

FOLLOW ALONG WITH THE CONVERSATION!

Curious about the StoolOMX Add-On to GI-MAP? Head to http://tinyurl.com/StoolOMX to download the StoolOMX Reference Guide to better understand results and create effective, actionable protocols

Listeners, join me and Dr. Tom Fabian for a free webinar on October 23rd 2025 and get your questions answered on all things on all things bile acids, pattern recognition on functional stool testing and precision-based interventions for optimal gut health and longevity. Register here: https://tinyurl.com/ydzsh6y6

Check out the show notes at www.drkarafitzgerald.com/fxmed-podcast/ for all the relevant links and resources.

GUEST DETAILS Thomas Fabian, PhD, CNTP

Email: tom.fabian@diagnosticsolutionslab.com

Dr. Tom Fabian, PhD, is a translational scientist focused on applying microbiome research in functional and integrative medicine. He serves as a consultant and science advisor with Diagnostic Solutions Laboratory, sits on the Science Advisory Board at Designs for Health, and is a certified Nutrition Therapy Practitioner.

THANKS TO OUR SPONSOR

Diagnostic Solutions Laboratory: https://tinyurl.com/2shv9jth Phone: 877-485-5336

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 book: https://tinyurl.com/mr4d9tym

Better Broths and Healing Tonics book: https://tinyurl.com/3644mrfw

Dr. Kara Fitzgerald | New Frontiers in Functional Medicine, Longevity, Epigenetics

Check out the show notes at https://www.drkarafitzgerald.com/fxmed-podcast/ for the full list of links and resources.

GUEST DETAILS

Website: https://www.rootedfemme.com/

LinkedIn Profile: https://www.linkedin.com/in/brookestubbsmd/

THANKS TO OUR SPONSOR

SPONSOR: Vibrant Wellness http://vibrant-wellness.com/drfitzgerald

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