When High Protein Backfires in the Gut Dr. Tom Fabian

When High Protein Backfires in the Gut Dr. Tom Fabian

Author: Dr. Kara Fitzgerald April 9, 2026 Duration: 1:00:02
Dr. Kara Fitzgerald | New Frontiers in Functional Medicine, Longevity, Epigenetics
HealthHealth & FitnessFitness
In this episode of New Frontiers in Functional Medicine, Dr. Kara Fitzgerald speaks with Tom Fabian, PhD, Senior Educator and Research Specialist at Diagnostic Solutions Laboratory, about why higher protein intake doesn’t always lead to better muscle outcomes. Emerging research shows that digestion, microbiome balance, and immune signaling all influence how effectively the body utilizes dietary protein.

Dr. Fabian explores the gut–muscle axis and explains how microbiome-derived metabolites and regulatory T cells support tissue repair and recovery. The conversation also highlights why variability in protein digestion matters and how evaluating gut function can help practitioners determine whether patients are positioned to benefit from higher protein intake.

Full show notes + references: https://www.drkarafitzgerald.com/fxmed-podcast/

GUEST DETAILS

Tom Fabian, PhD, translates microbiome research into clinical insights for functional medicine. He is a science advisor with Diagnostic Solutions Laboratory and a Science Advisory Board member with Designs for Health.

Email: tom.fabian@diagnosticsolutionslab.com

THANKS TO OUR SPONSOR

Diagnostic Solutions Laboratory Phone: 877-485-5336

Explore DSL’s advanced clinical testing and create your practitioner account at http://diagnosticsolutionslab.com/fxmedpodcast

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In each episode of Dr. Kara Fitzgerald | New Frontiers in Functional Medicine, Longevity, Epigenetics, host Dr. Kara Fitzgerald sits down with leading researchers and clinicians to explore the intricate science that is reshaping our approach to health. These conversations move beyond surface-level advice, digging into the mechanisms of epigenetics and the practical strategies for extending healthspan. You’ll hear detailed discussions on emerging research, with a focus on how our environment and choices influence genetic expression over a lifetime. This podcast is designed for anyone curious about the actionable science behind longevity, from healthcare practitioners seeking clinical insights to informed patients ready to engage deeply with their own wellness. The dialogue is grounded in functional medicine principles, translating complex studies into meaningful information that can be applied both in clinical settings and daily life. Dr. Fitzgerald guides these explorations with a clear and thoughtful perspective, ensuring each episode builds a comprehensive understanding of how modern science is personalizing the path to lasting health. Tune in for a nuanced and evidence-based journey to the forefront of medicine.
Author: Language: English Episodes: 100

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