Eating for your microbiome doesn't have to be complicated — but it does require rethinking how we approach food, carbohydrates, and flavor.

In this episode of The Mind–Gut Conversation, Dr. Mayer is joined by Anu Simh, a board-certified functional health coach, microbiome educator, and author of Flourish from Within: New Gut for Lifelong Health. Anu's work bridges the gap between microbiome science and real-world application, offering a framework for eating that supports microbial diversity without rigid meal plans or overwhelming recipes.

They explore why diversity matters more than any single superfood, how to distinguish beneficial complex carbohydrates from refined ones, and why traditional cuisines — like Anu's South Indian roots — have been quietly aligned with microbiome science all along. The conversation also covers the role of herbs and spices as important sources of polyphenols, how to retrain your palate to accept bitter flavors, and how to build simple, repeatable eating patterns that actually stick in people's lives.

This episode offers a grounded, science-based look at what it means to feed your microbiome, and how to translate research into sustainable habits that support gut health and long-term well-being.

Topics discussed include:

• Why microbial diversity is more important than any single superfood

• How traditional cuisines align with microbiome science

• The difference between refined and complex carbohydrates

• Herbs and spices as polyphenol-rich additions to everyday meals

• Retraining your palate to accept bitter and diverse flavors

• Building simple, repeatable eating patterns for gut health

This is a practical, science-driven discussion for anyone interested in the gut microbiome, plant-forward eating, and the brain–gut connection.

Chapters:

0:00 - Introduction

2:36 - Anu's Origin Story and Journey to Microbiome Science

8:46 - Has Plant-Forward Eating Reached the General Public?

25:08 - The Flourish Diet

34:54 - Herbs, Spices, and Retraining Your Plate

45:07 - Closing Remarks and Practical Recipes

Fiber has been talked about for decades — but emerging research suggests most of us still don't understand what it actually does, how much we need, or why the modern diet has left us so dramatically short of it.

In this episode of The Mind–Gut Conversation, Dr. Mayer is joined by Dr. Matt Amicucci, food scientist and co-founder of OneBio, to discuss the cutting-edge science of dietary fiber and its far-reaching role in gut health, metabolism, and disease prevention.

Dr. Amicucci explains how different fiber structures interact with specific microbial communities in the gut to produce short-chain fatty acids like butyrate — and how those molecules influence everything from blood glucose regulation to GLP-1 secretion to long-term mortality risk. He also shares the story behind Glycopedia, the largest dietary fiber database ever built, and how it is being used to develop a new generation of personalized, microbiome-targeted nutrition.

They also discuss why 95% of Americans fall short of even the minimum recommended fiber intake, how decades of food processing have systematically stripped fiber from the diet, and what it will take to close that gap.

This is a practical, science-driven discussion for anyone interested in nutrition, the gut microbiome, and the future of food.

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Connect with Dr. Mayer:

Website: https://www.emeranmayer.com

Instagram: https://www.instagram.com/emeranmayer/

X (Twitter): https://www.twitter.com/emeranmayermd

Facebook: https://www.facebook.com/EmeranMayerMD/

LinkedIn: https://www.linkedin.com/in/emeranmayer/

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Chapters:

0:00 - Introduction

2:38 - Matt's Origin Story: From Chef to Food Scientist

6:43 - Why Fiber Is Having a Moment

8:58 - The Fiber Deficit Crisis

11:36 - What Decades of Low Fiber Intake Has Done to the Microbiome

13:47 - Building Glycopedia: Mapping the World's Fibers

19:33 - Why Whole Foods Alone Aren't Enough

21:42 - Not All Fiber Is Created Equal

25:47 - Introducing GoodVice

27:34 - The Health Case for 10 More Grams a Day

33:49 - Rethinking Sugar and Fiber Together

36:34 - Fiber, Butyrate, and GLP-1

38:42 - The Future of Personalized Fiber Nutrition

40:17 - What's Next for OneBio

Chronic pain is often treated as a problem to suppress with medication or surgery, but what if it’s actually a signal from a complex system that needs to be addressed holistically?

In this episode of The Mind–Gut Conversation, Dr. Mayer is joined by Jared E. Katz, author of Retrain the Brain: Self-Help for Traumatic Brain Injury and creator of the pain management app Painless. Jared’s story begins more than twenty years ago, when a traumatic brain injury left him with cognitive impairment and two rare, painful conditions: Chiari malformation and syringomyelia.

Rather than accepting a life defined by pain, Jared spent years quietly experimenting with how he eats,sleeps, moves, and thinks. He developed what he calls a “brain health algorithm” — a set of daily practices spanning nutrition, cognitive activity, movement, sleep, and social engagement. The result is not just a book, but a blueprint for anyone living with chronic pain or seeking to understand whatbrain health truly looks like in practice.

This episode is slightly different from our usual focus on the gut microbiome, but the principles align closely with the holistic, systems-based thinking Dr. Mayer teaches. Jared’s experience demonstrates that the brain is not a machine with one broken part — it’s a dynamic, interconnected system capable of adaptation and healing when given the right conditions.

Topics discussed include:

• What a “brain health lifestyle” actually involves

• How anti-inflammatory nutrition and eating patterns affectpain and cognition

• Why chronic pain requires addressing multiple systems, notjust one symptom

• How cognitive exercises like writing can help rewire thebrain

• The future of personalized pain management

This is a practical, deeply human conversation for anyoneinterested in chronic pain, brain health, and the power of self-directed healing.

Chapters:

0:00 - Introduction

6:04 - Jared's Story: The Injury & Living With Chronic Pain

11:30 - Nutrition, Diet & the WAH Principle

16:57 - The Painless App & the Future of Pain Management

22:30 - The Five Pillars of a Brain Health Lifestyle

27:48 - Resilience, Recovery & the Gut-Brain Connection

35:11 - Psychedelics, Neuroplasticity & Closing Thoughts

Menopause is often described as a simple decline in estrogen production, but emerging microbiome research suggests the story is far more complex.

In this episode of The Mind–Gut Conversation, Dr. Mayer is joined by Dr. David Meriwether, a scientist at UCLA’s Goodman Luskin Microbiome Center, to discuss the estrobolome — a specialized group of gut microbes that recycle and reactivate estrogen after it has been excreted by the body.

They explore how gut microbes may contribute to circulating estrogen levels even after menopause, why menopausal symptoms vary so widely among women, and how changes in the microbiome may create feedback loops that influence symptom severity. The discussion also places this research in the broader context of recent findings published in Nature linking the gut microbiome to health, aging, and disease.

This episode offers an in-depth, evidence-based look at a new biological framework for understanding menopause, and the potential for future non-hormonal strategies rooted in the brain–gut–microbiome system.

Topics discussed include:

• What the estrobolome is and why it matters

• How gut microbes recycle estrogen after menopause

• Why some women experience fewer menopausal symptoms than others

• The interaction between the gut, hormones, and aging

• Where microbiome-based therapies for menopause may be headed

This is a practical, science-driven discussion for anyone interested in women’s health, menopause, and the evolving role of the gut microbiome.

You can support & learn more about Dr. Meriwether's work here: https://themeriwetherlab.com/

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Connect with Dr. Mayer:

Website: https://www.emeranmayer.com

Instagram: https://www.instagram.com/emeranmayer/

X (Twitter): https://www.twitter.com/emeranmayermd

Facebook: https://www.facebook.com/EmeranMayerMD/

LinkedIn: https://www.linkedin.com/in/emeranmayer/

In this episode of The Mind–Gut Conversation, Dr. Emeran Mayer sits down with Tim Spector, MD, to discuss the implications of a landmark gut microbiome study involving more than 34,000 participants — one of the largest and most comprehensive efforts to date to understand what a “healthy” gut microbiome actually looks like.

Drawing from the study’s novel design and findings, they explore why defining gut health is far more complex than identifying a short list of “good” or “bad” microbes. The conversation unpacks what large-scale microbiome data can, and cannot tell us about health, disease prevention, and the growing interest in microbiome testing as a tool for personalized nutrition and healthcare.

Together, they examine the deep connections between diet and the microbiome, highlighting why dietary patterns, particularly fiber- and prebiotic-rich foods, may play a more meaningful role than many commonly marketed probiotic products. They also discuss the challenges of translating microbiome research into actionable guidance for consumers and clinicians, and why education and context are essential as microbiome testing becomes more widely available.

This wide-ranging discussion blends cutting-edge microbiome science with practical insight, offering a grounded perspective on where the field is headed and how emerging research may eventually shape everyday health decisions.

Topics discussed include:

• What a large-scale microbiome study reveals about gut health

• Why defining a “healthy” microbiome is more complex than expected

• The limitations of labeling microbes as simply good or bad

• The role of diet, fiber, and prebiotics in shaping the microbiome

• The promises and pitfalls of microbiome testing

• How microbiome research may influence future healthcare practices

This is a practical, evidence-based discussion for anyone interested in gut health, whether navigating dietary choices personally, exploring microbiome testing, or working in a clinical or research setting.

Please leave any comments or feedback on the episode — we’d love to hear your thoughts.

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Chapters:

00:00 Introduction

02:05 The Landmark Study Overview

05:29 Defining Healthy Gut Microbiomes

10:02 The Good vs. Bad Microbes

13:59 Implications for Diet and Health

18:37 The Role of Prebiotics and Probiotics

23:27 Future Directions in Microbiome Research

27:49 Challenges in Proving Causality

31:51 The Future of Gut Health Testing

36:36 Future Outlook in Traditional Medicine

40:10 Microbiome Testing in Clinical Practice

43:20 Regulation, Wellness, and Medical Use

46:10 Personalizing Diet Through the Microbiome

48:50 Final Reflections

In this episode of The Mind–Gut Conversation, Dr. Emeran Mayer sits down with Will Bulsiewicz, board-certified gastroenterologist, New York Times bestselling author, and one of today’s leading voices in microbiome science.

Drawing from his newest book, Plant-Powered Plus, Dr. Bulsiewicz explores why chronic, low-grade immune activation has become so widespread—and how modern lifestyles are keeping our immune system permanently switched on.

Together, they examine the deep connections between diet, the microbiome, the immune system, and inflammation, unpacking how evolutionary mismatches, ultra-processed foods, low fiber intake, chronic stress, and social disconnection are reshaping human health. The conversation moves beyond symptoms to address root causes, highlighting why restoring health requires rethinking how we eat, live, and connect.

This wide-ranging discussion blends cutting-edge science with clinical insight, offering a grounded, practical perspective on how small, sustainable changes can meaningfully reduce inflammation and support long-term well-being.

Topics discussed include:

• What inflammation really is—and why it’s no longer just an acute response

• How the gut microbiome and immune system interact

• The role of fiber, polyphenols, and microbial metabolites in regulating inflammation

• Why modern environments clash with human biology

• How lifestyle factors like stress, loneliness, and purpose influence immune health

This is a practical, evidence-based discussion for anyone seeking to understand how modern lifestyle factors shape immune health, inflammation, and long-term well-being.

Please leave any comments or feedback on the episode — we’d love to hear your thoughts.

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This episode is brought to you by Mayer Nutrition. If you are interested in trying Synaptic Bloom, our high-potency Quercetin + supporting polyphenols blend, you can visit mayernutrition.com, and use our exclusive podcast discount code: MINDGUT for 10% off your first order!

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Connect with Dr. Mayer:

Website: https://www.emeranmayer.com

Instagram: https://www.instagram.com/emeranmayer/

X (Twitter): https://www.twitter.com/emeranmayermd

Facebook: https://www.facebook.com/EmeranMayerMD/

LinkedIn: https://www.linkedin.com/in/emeranmayer/

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Chapters:

0:00 – Introduction

3:00 – Purpose, Medicine, and the Evolution of Gut Health

7:00 – What Inflammation Really Is

12:30 – Modern Life and the Immune System

18:00 – The Gut Microbiome and Immune Activation

26:00 – Diet, Fiber, and Microbial Health

38:21 – Mayer Nutrition

40:15 – Lifestyle, Stress, and Social Connection

49:00 – Technology, Medicine, and the Future of Health

1:05:00 – Practical Takeaways and Closing Reflections

In this episode of The Mind-Gut Conversation, Dr. Emeran Mayer sits down with Dr. Lauren DeDecker, a board-certified internal medicine physician with training in nutrition and integrative medicine, to explain how gut health is approached in real-world primary care.

They discuss why fiber and plant diversity remain foundational for digestive and metabolic health, how microbiome research reshaped modern medicine, and why popular diet trends often miss the bigger picture. The conversation also covers SIBO, common gut-related diagnoses, and how GLP-1 medications are changing what we understand about appetite, inflammation, and metabolism.

Key Topics Covered:

• Gut health and the brain-gut-microbiome system

• Fiber, fermented foods, and microbiome diversity

• SIBO, overdiagnosis, and gut symptoms

• Popular diets: carnivore, keto, Mediterranean

• GLP-1 medications, appetite regulation, and inflammation

This is a practical, evidence-based discussion for anyone interested in supporting gut health — whether navigating digestive concerns personally or working with patients in a clinical setting.

Please leave any comments or feedback on the episode — we’d love to hear your thoughts.

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Connect with Dr. Mayer:

Website: https://www.emeranmayer.comInstagram: https://www.instagram.com/emeranmayer/X (Twitter): https://www.twitter.com/emeranmayermdFacebook: https://www.facebook.com/EmeranMayerMD/LinkedIn: https://www.linkedin.com/in/emeranmayer/

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Chapters:

0:00 – Introduction to Gut Health & Integrative Medicine

1:30 – From Conventional Medicine to Integrative Care

6:30 – Why Gut Health Became Mainstream (Microbiome Science)

12:30 – Fiber, Plant Diversity & Foundational Gut Health

18:45 – Diet Trends Explained: Carnivore, Keto & Mediterranean

22:30 – SIBO, Gut Symptoms & Overdiagnosis

31:45 – GLP-1 Medications, Appetite & Metabolism

41:15 – The Future of Gut Health & Lifestyle Medicine

In this episode of The Mind-Gut Conversation, Dr. Emeran Mayer sits down with Wolfgang Puck, one of the most iconic chefs of our time, for an intimate conversation about the life experiences, creative influences, and personal philosophy that shaped his extraordinary career.

Puck reflects on his difficult childhood in Austria and how the kitchen became both refuge and calling. He shares the pivotal moments — working under a visionary French chef, discovering the power of simple dishes made from exceptional ingredients, and redefining California cuisine — that built the foundation of his global culinary empire.

Together, they explore:

• How early adversity shaped Puck’s resilience and drive

• The pivotal mentor who transformed his relationship to flavor and hospitality

• Why simplicity, curiosity, and world-class ingredients remain his guiding principles

• The evolution of American dining and why taste is central to healthier eating

• How passion, purpose, and creativity fuel energy and longevity well into his 70s

This conversation reveals the mindset behind a cultural icon — one who continues to innovate, inspire, and live fully through his craft.

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Connect with Dr. Mayer:

Website: https://www.emeranmayer.com

Instagram: https://www.instagram.com/emeranmayer/

X (Twitter): https://www.twitter.com/emeranmayermd

Facebook: https://www.facebook.com/EmeranMayerMD/

LinkedIn: https://www.linkedin.com/in/emeranmayer/

Chapters:

00:00 – Early Hardship & Discovering the Kitchen

08:40 – Mentorship in France & Shaping a Culinary Philosophy

14:00 – Coming to America: Reinvention in New York & LA

23:20 – Creating California Cuisine & Building Spago

31:30 – Flavor, Health, and the Future of Eating

49:50 – Passion, Curiosity & Longevity

In this episode of The Mind-Gut Conversation, Dr. Emeran Mayer sits down with Kate Scarlata, RDN, an internationally recognized dietitian, bestselling author, and leading authority on dietary therapies for IBS and chronic digestive disorders.

Drawing from her personal medical journey and decades of clinical experience, Kate offers a deeply insightful and refreshingly nuanced look at some of the most debated topics in gut health today.

Together, they explore the real therapeutic value of the Low FODMAP diet, who it helps, who it doesn’t, and why its success hinges on personalization rather than restriction.

The conversation moves through major controversies in the field, including SIBO over-diagnosis, the confusion around non-celiac gluten sensitivity, the true causes of bloating, and the myth of detox diets.

Throughout, Kate emphasizes a balanced, science-guided, and compassionate approach that prioritizes patient well-being, food enjoyment, and quality of life over dogma.

Key Topics Covered:

• The Low FODMAP diet: benefits, misconceptions, and why personalization matters

• SIBO: over-diagnosis, breath test pitfalls, and when treatment does make sense

• Non-celiac gluten sensitivity: separating nocebo effects from true reactions

• Bloating: dietary vs. physiological vs. stress-related causes

• Why detox culture misses the point—and what the body’s built-in detox systems already do

This is an honest, evidence-informed, and highly practical discussion for anyone navigating digestive symptoms, or for clinicians seeking a more grounded way to help their patients thrive.

Please leave any comments or feedback on our Podcast in the comments, we'd love to hear what you think about it.

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This episode is brought to you by Mayer Nutrition.

Synaptic Bloom, our high-potency Quercetin + supporting polyphenols blend, supports your brain, heart, and immune system through your gut microbiome.

Learn more at ⁠mayernutrition.com⁠, and use our exclusive podcast discount code: MINDGUT for 10% off your first order!

------------------------------------

Connect with Dr. Mayer:

Website: https://www.emeranmayer.com

Instagram: https://www.instagram.com/emeranmayer/

X (Twitter): https://www.twitter.com/emeranmayermd

Facebook: https://www.facebook.com/EmeranMayerMD/

LinkedIn: https://www.linkedin.com/in/emeranmayer/

Chapters:

00:00 – Welcome & Kate Scarlata’s Story

04:40 – How Personal Experience Shaped Her Career

06:05 – The Low FODMAP Diet: What People Get Wrong

10:16 – How to Personalize Dietary Therapy

15:16 – SIBO: Why It’s Overdiagnosed

18:22 – When SIBO Is Real (and When It Isn’t)

24:50 – Understanding Bloating & Symptom Patterns

29:32 – Gluten Sensitivity: Myth, Nocebo, or Something More?

36:45 – Beyond Diet: Stress, Motility & the Gut–Brain–Microbiome System

44:50 – The Truth About Detox Culture

47:23 – Supporting Gut Health Through Daily Habits

50:14 – How Kate Eats & Lives Today

52:31 – Final Thoughts

Dr. Emeran Mayer sits down with Taylor Bell, an Ivy League–educated former management consultant turned full-time YouTuber, for a candid conversation on authenticity, ambition, and the health consequences of living out of alignment with your true values.

Through her story of leaving a high-pressure corporate career to pursue creative entrepreneurship, Taylor shares what it means to redefine success, listen to your inner voice, and create a life rooted in purpose and well-being.

Together, they explore the psychological effects of cognitive dissonance, how chronic stress shows up in the body, especially through the brain-gut-microbiome system, and why self-trust and intentional living are essential for both mental and physical health.

Dr. Mayer also discusses the physiological impact of chronic stress, the concept of allostatic load, and practical tools such as diaphragmatic breathing that can help restore balance and resilience in a world of constant pressure and comparison.

Key Topics Covered:

• The link between cognitive dissonance, stress, and physical health

• How authenticity and purpose shape mental well-being

• The hidden costs of over-optimization and burnout

• Simple ways to live and work with greater intention

• Why listening to your body is more powerful than tracking every metric

• Breathing techniques to reset the nervous system and calm the mind

This episode is both inspiring and deeply practical — a reminder that true success isn’t about constant achievement, but about alignment, fulfillment, and trusting the wisdom of your own body.

As always, we invite you to share your thoughts in the comments and subscribe for more episodes exploring the science of brain–body health.

This episode is brought to you by Mayer Nutrition. If you are interested in trying Synaptic Bloom, our high-potency Quercetin + supporting polyphenols blend, you can visit mayernutrition.com, and use our exclusive podcast discount code: MINDGUT for 10% off your first order!

Connect with Dr. Mayer:

Website: https://www.emeranmayer.com

Instagram: https://www.instagram.com/emeranmayer/

X (Twitter): https://www.twitter.com/emeranmayermd

Facebook: https://www.facebook.com/EmeranMayerMD/

LinkedIn: https://www.linkedin.com/in/emeranmayer/

Chapters:

0:00 - 2:30 Introduction

2:30 - 4:59 Career Shift from Consulting to YouTuber

4:59 - 7:25 Synchronicity & Self-Trust

7:25 - 17:38 Cognitive Dissonance, Gut Feelings & Finding Your True Passion

17:38 - 19:16 Passion & Happiness

19:16 - 23:53 Career Stress & Stress Response System

23:53 - 25:33 Sponsor: Mayer Nutrition

25:33 - 31:05 We've Taken Health Optimization Too Far

31:05 - 32:30 Keys to Health & Longevity

32:30 - 36:38 Chronic Stress, Brain-Gut-Microbiome System, Allostatic Load

36:38 - 41:47 Practical Tips to Better Adapt to Stress

41:47 - 46:27 Breathing Techniques Dr. Mayer Teaches His Patients

46:27 - 49:01 Closing Remarks, Advice to People Dealing with Career Changes