The Microbiome and Metabolic Health | Dr. Brian and Dr. Tro - E429
Release Date: 02/09/2026
Low Carb MD Podcast
Peter Cummings is a preventive health practitioner and endurance sports coach with more than 30 years of experience helping people improve metabolic health through exercise, nutrition, and lifestyle change. A Metabolic Health Practitioner (MHP) and Nutrition Network Practitioner (NNP), he specializes in therapeutic carbohydrate reduction, cardiorespiratory fitness, and personalized exercise prescription. Cummings has authored peer-reviewed research in the American Journal of Preventive Medicine – FOCUS and has helped train health professionals to integrate fitness and lifestyle interventions...
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Dr. Alan Schaffer is a board-certified physician specializing in pulmonary, critical care, and sleep medicine. With decades of clinical experience, he focuses on the intersection of respiratory health, sleep disorders, and metabolic health, including the role of nutrition and carbohydrate restriction in improving chronic disease. Dr. Schaffer practices with St. Peter’s Health Partners in New York and is a frequent educator and media guest discussing conditions such as sleep apnea, insomnia, and the broader drivers of cardiometabolic health. In this episode, Drs. Tro and Alan talk...
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Dr. Marion Mass is a pediatrician, educator, and fierce advocate for restoring integrity to American medicine. A co-founder of the nonprofit Practicing Physicians of America, she has been a leading voice calling out the corporate forces reshaping health care and their impact on doctors and patients alike. In this episode, Dr. Brian, Dr. Tro, and Dr. Marion talk about… (00:00) Intro (02:29) Systemic problems in medicine over the last few decades and how we can solve them (05:27) Perverse incentives in health insurance and how health care can be made cheaper (14:40) Conflicts of...
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Cynthia Thurlow is a nurse practitioner, bestselling author, and leading voice in women’s metabolic health. With over two decades of clinical experience, she’s known for translating complex science into practical strategies—helping women navigate perimenopause, optimize fasting, and reclaim energy, resilience, and long-term wellness. In this episode, Dr. Brian, Dr. Tro, and Cynthia talk about… (00:00) Intro (02:28) Hormonal shifts, the microbiome, and metabolic health (07:50) How modern developments in food production and the advent of mass-produced plastics have impacted our...
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Dr. Frank Dumont is Executive Medical Director at Virta Health, where he leads medical strategy to advance safe, scalable metabolic care. A longtime internal medicine physician at Estes Park Medical Center, he previously directed its Wellness Service Line. A Fellow of the American College of Physicians, Dr. Dumont has also served in leadership roles with the Colorado Medical Society and the American Medical Association. In this episode, Drs. Brian and Frank talk about… (00:00) Intro (04:03) How Dr. Frank’s personal health issues and professional experiences as a doctor led him to adopt...
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Michael Prager is a journalist and writer focused on food addiction and the science of ultra-processed foods. Drawing on personal experience and deep reporting, he explores how modern food environments hijack appetite—and what it takes to reclaim health, agency, and freedom around food. He is also the chairman of the Food Addiction Institute and the author of two books: Fat Boy Thin Man and Sustainable You. In this episode, Dr. Tro, Dr. Brian, and Michael talk about… (00:00) Intro (03:15) Michael’s personal health journey dealing with food addiction and how he first became interested...
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When there is no guest to interview, Dr. Brian and Dr. Tro get to talk about whatever they want! Today, that’s the microbiome and metabolic health. The conversation ranges from fasting to microplastics to inulin and beyond. You are not likely to walk away without hearing something about gut health that you’ve never heard before. In this episode, Drs. Tro and Brian talk about… (00:00) Intro (03:24) How the peer review process works for scientific publications (10:50) How the SMHP is tackling the barriers to good science caused by the standard peer review process (17:04) Fasting,...
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Dr. Matt Bernstein is a clinical psychiatrist and leading voice in metabolic psychiatry, with 25 years of experience helping people achieve lasting mental health and functional recovery. A Columbia graduate (summa cum laude) and Penn-trained physician, he completed residency at MGH/McLean, where he served as chief resident and later held senior leadership roles. Now Chief Medical Officer at Ellenhorn, he develops innovative, community-based models for mental health care and serves on advisory boards advancing the metabolic psychiatry movement. In this episode, Drs. Tro and Matthew talk...
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Dr. Jason Fung is a Canadian nephrologist and leading voice in metabolic health, best known for making the science of fasting and insulin resistance simple, practical, and empowering. Through his books, lectures, and clinical work, he’s helped thousands rethink weight loss, type 2 diabetes, and long-term health by focusing on hormones, not just calories. Dr. Fung is the co-founder of The Fasting Method and a sought-after educator on metabolic health. In this episode, Drs. Brian, Tro, and Jason talk about… (00:00) Intro (05:46) The new dietary guidelines and food pyramid (08:02) The...
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The new Dietary Guidelines for Americans have finally arrived! When this podcast first started approximately 8 years ago, a paradigm shift of this magnitude seemed like a nice but impossible dream. In this episode we discuss the content, creation, and future impacts of our new national guidelines. In this episode, Drs. Brian and Tro talk about… (00:00) Intro (01:25) The top people involved in bringing about the recent changes to our dietary guidelines (05:39) The content of the new dietary guidelines (09:27) How the big food companies have been reacting to these guidelines (12:20)...
info_outlineWhen there is no guest to interview, Dr. Brian and Dr. Tro get to talk about whatever they want! Today, that’s the microbiome and metabolic health. The conversation ranges from fasting to microplastics to inulin and beyond. You are not likely to walk away without hearing something about gut health that you’ve never heard before.
In this episode, Drs. Tro and Brian talk about…
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(00:00) Intro
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(03:24) How the peer review process works for scientific publications
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(10:50) How the SMHP is tackling the barriers to good science caused by the standard peer review process
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(17:04) Fasting, the microbiome, and metabolic health
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(33:47) Mold, food allergies, and gut health
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(40:36) IMP issues, low carb diets, and inulin
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(43:15) Microplastics
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(46:06) Stress and physical health
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(49:20) The recent SMHP Symposium for Metabolic Health (link below for CME)
For more information, please see the links below. Thank you for listening!
Links:
Please consider supporting us on Patreon: https://www.lowcarbmd.com/
Resources Mentioned in this Episode:
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Dr. Jessica Rose interview on the Life’s Best Medicine Podcast: https://lifesbestmedicine.com/podcast/episode-282-dr-jessica-rose/
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The SMHP Symposium for Metabolic Health CME: https://thesmhp.org/accreditation-process/#providers
Dr. Brian Lenzkes:
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Website: https://arizonametabolichealth.com/
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Twitter: https://twitter.com/BrianLenzkes?ref_src=twsrc^google|twcamp^serp|twgr^author
Dr. Tro Kalayjian:
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Website: https://toward.health
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Twitter: https://twitter.com/DoctorTro
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