Inside Matters

In this episode of Inside Matters, Dr. James McIlroy sits down with Cory Greenberg, a professional cyclist and founder of Ride4IBD.

Cory shares his inspiring journey from his initial diagnosis of inflammatory bowel disease (IBD) while training as a professional cyclist, to overcoming the challenges posed by the disease. The conversation covers his approach to gut health in the context of athletic performance, insights into training and lifestyle adjustments, and his efforts to raise awareness through Ride for IBD. Listeners will gain valuable insights into how Cory manages his condition, optimises his performance, and aims to inspire others facing similar challenges.

Through his story, Cory emphasises the importance of creating a sustainable lifestyle and offers practical advice for those living with IBD or looking to improve their gut health.

In this episode of Inside Matters, Dr James McIlroy explores the remarkable evolution of Faecal Microbiota Transplantation (FMT), from its unlikely beginnings to its promising future—and shares exciting new data from his company, EnteroBiotix.

We begin with the pioneering efforts of Mr Ben Eisman in 1958, whose early use of FMT saved lives in cases of severe diarrhoea. From there, Dr McIlroy takes us through decades of progress, culminating in today's pharmaceutical-grade approaches that are changing the face of gut health treatment.

The conversation spotlights the dramatic effectiveness of FMT in tackling recurrent Clostridioides difficile (C. diff) infections and dives into the expanding potential of microbiome therapies for a range of conditions.

James also shares exclusive insights from EnteroBiotix’s recent phase 2 trial, which delivered encouraging results for a next-generation, FMT-based therapy targeting Irritable Bowel Syndrome (IBS). Designed to be scalable, consistent, and patient-friendly, this new approach marks a significant step forward in microbiome medicine.

This episode is a deep dive into one of the most fascinating areas of modern healthcare—and a look at where we're headed next.

Timestamps:

00:00 – The pioneering work of Mr Ben Eisman

In a fascinating conversation with Professor Max Nieuwdorp of the Amsterdam Medical Centre, Dr James McIlroy explores groundbreaking ideas and research surrounding the microbiome, hormones, and their profound impact on metabolic diseases. This insightful dialogue uncovers the remarkable potential of faecal microbiota transplant (FMT) and emerging pharmaceutical strategies in tackling obesity, diabetes, and even cancer.

Timestamps:

The Journey into Microbiome Research

Professor Nieuwdorp's interest in the microbiome began serendipitously during his postdoctoral studies at UCSD. There, he encountered revolutionary ideas, particularly through the work of Jeffrey Gordon, which highlighted the significance of the microbiome long before it became widely acknowledged. An unforgettable early success with FMT on a patient with Clostridium difficile infection set the foundation for his enduring commitment to this field. Over the years, Nieuwdorp has been involved in pivotal studies, evolving his understanding of how microbiome therapies could be used in metabolic diseases and beyond.

Understanding FMT and Its Role

FMT has shown remarkable efficacy, especially in treating infections like Clostridium difficile. The discussion highlights an astounding 90% cure rate demonstrated in early trials, a feat Nieuwdorp describes as "seminal". Nonetheless, expanding this success to metabolic conditions such as obesity and autoimmune diseases remains a promising, yet ongoing, challenge.

The Nexus Between Microbiome and Obesity

While the connection between the microbiome and obesity remains a complex issue, Nieuwdorp emphasises how the microbiome's role in weight control is likely more significant over the long term—akin to directing an oil tanker—than as a quick fix. The conversation delves into why the body finds it easier to gain weight than to lose it, considering genetic predispositions and evolutionary pressures. This adaptability of the microbiome, combined with dietary habits, may significantly influence how our bodies metabolise and store energy.

Revolutionary Treatments on the Horizon

Emerging pharmacological treatments such as GLP-1 agonists are causing waves in medicine. These drugs, alongside the potential of next-generation probiotics, promise to reshape how obesity and associated conditions are treated. Intriguingly, research continues to suggest the microbiome might itself produce GLP-1, hinting at a future where therapies target these microbial mechanisms directly.

The Path Forward: Microbiome as a Predictive Tool

Professor Nieuwdorp envisions a future where microbiome profiling becomes a standard diagnostic and preventative tool. It has the potential to predict disease susceptibility, allowing for earlier and more personalised interventions. In parallel, the continued development of FMT and its derivatives may revolutionise treatments for a range of conditions, from cancer to metabolic disorders.

The Educational Perspective: "The Power of Hormones"

In addition to his pioneering research, Nieuwdorp shares insights in his book, The Power of Hormones, presenting a layperson’s guide to understanding hormones across a lifespan. This book interweaves historical narratives with scientific discussion to elucidate how hormones and the microbiome intersect in influencing daily life.

This extensive dialogue with Professor Nieuwdorp is a testament to the potential of microbiome science and the exciting horizon that awaits both researchers and patients. As innovations continue, integrating microbiome knowledge with traditional medical interventions could profoundly change how we understand and treat human health.

Exploring the Human Microbiome with Dr. Joël Doré: The Future of Gut Health Science

In this episode of Inside Matters, Dr James McIlroy engages in an enlightening conversation with Dr. Joël Doré, Research Director at the French National Research Institute for Agriculture, Food and Environment (NRAE). With over 40 years of experience in microbiome research, Dr. Doré shares his extensive knowledge on probiotics, gut health protocols, at-home microbiome testing, and the gut-brain axis. The discussion delves into the intricacies of the human microbiome symbiosis, the evolutionary development of gut microbiota, and its impact on health conditions such as obesity and chronic diseases. Dr. Doré also sheds light on innovative treatments like faecal microbiota transfer and the significance of microbial diversity for a healthy gut. Tune in to discover how the future of medicine and nutrition hinges on understanding and leveraging the microbial human.

Takeaways

Timestamps

00:00 Introduction to Dr. Joël Doré and Microbiome Research

Timestamps:

00:00 Welcome and Introduction

00:19 Overview of EnteroBiotix

01:13 Reflecting on 2024 Achievements

02:00 Clinical Trials and Milestones

04:16 Liver Cirrhosis Trial Insights

08:07 IBS Clinical Trial Success

11:52 Future Prospects and Goals

14:45 Conclusion and Gut Health Tips

In a conversation with Dr. James Kinross, a senior lecturer and consultant surgeon at Imperial College London, various aspects of the human microbiome are explored. He is also the author of "Dark Matter: The New Science of the Microbiome".

Dr. Kinross discusses what constitutes a healthy microbiome and the challenges in analyzing it. The conversation also covers new research linking microbiomes to the effectiveness of cancer drugs, the concept of an 'internal climate crisis' within our guts, and the importance of the early life microbiome. Furthermore, Dr. Kinross shares practical advice on diet, probiotics, and the impact of social interactions on gut health.

The dialogue concludes with insights into microbiome testing and its crucial role in both clinical settings and personal health management.

Key Takeaways:

Microbiome Complexity: The microbiome is like a newly discovered organ, vital for health but complex to define and influence. Understanding it is crucial for advancing medical science.

Diet and Diversity: A diverse diet rich in plant fibres supports a flourishing microbiome, which can protect against chronic diseases.

Targeted Therapies: Probiotics and microbial therapies hold promise but require more precise application and understanding to be truly effective.

Prevention Focus: The most significant potential of microbiome science lies in disease prevention, particularly through early-life interventions.

00:00 Introduction to Dr. James Kinross and His Work

00:27 Exploring the Microbiome: Definitions and Challenges

00:46 Microbiome and Cancer Research

00:54 Analogies and Concepts in Microbiome Science

01:56 The Dog Microbiome: Insights and Comparisons

07:17 Microbiome Bubble: Hype or Reality?

12:09 The Importance of Microbial Conservationism

20:52 Antibiotics and Microbiome Scarring

28:00 Co-Evolution of Microbes and Humans

37:33 Practical Advice for Improving Your Microbiome

41:07 Understanding Biodiversity and Microbiome Health

41:48 Defining a Healthy Microbiome

42:28 Challenges in Microbiome Diagnostics

46:03 The Role of Diet and Antibiotics

51:51 The Controversy of Probiotics

58:08 Microbiome Testing in Clinical Practice

01:06:31 Microbiome's Impact on Drug Efficacy

01:11:14 Future of Microbiome Therapeutics

01:15:04 Practical Advice and Final Thoughts

In this episode of Inside Matters, Dr. James McIlroy is joined by Professor Anthony Hobson, founder and CEO of the Functional Gut Clinic.

They discuss gut health diagnostics and treatments, focusing on the evolution of gut health understanding and therapies. Key topics include microbiome diagnostic testing, the importance of understanding gut functions, the impact of lifestyle on gut health, and the efficacy of various treatments for conditions like IBS and SIBO. The conversation also covers the development of non-invasive testing methods, the role of the second brain in gut health, and future directions for the Functional Gut Clinic and the field of digestive health.

Takeaways

• Gut health is the interface between the body and the outside world.

00:00 Introduction to Professor Anthony Hobson and the Functional Gut Clinic

00:54 The Importance of Gut Health and Functional Testing

01:23 Building the Functional Gut Clinic and TummyMOT Initiative

02:03 Listener Engagement and Podcast Support

02:40 Defining Gut Health and Its Importance

04:05 Challenges in Gut Health Diagnosis and Treatment

09:32 The Brain-Gut Connection and Sensitisation Studies

13:06 The Role of Breathing Techniques and Hypnotherapy

17:57 Debunking Myths and Raising Standards in Gut Health

27:23 Fundamentals of Maintaining Good Gut Health

35:34 Understanding the Migrating Motor Complex

36:36 Spacing Out Meals for Gut Health

37:27 The Role of Coffee in Digestion

37:58 Exploring Leaky Gut Syndrome

44:18 Alcohol and Gut Health

48:41 The Fascinating Proximal Colon

01:04:29 Small Intestinal Bacterial Overgrowth (SIBO)

01:13:24 Future of Digestive Health and Functional Gut Clinic

In this conversation, Dr James McIlroy and Emma Storey-Gordon discuss common myths and misconceptions surrounding health, fitness, and nutrition.

They explore the law of diminishing returns in exercise, the latest science in nutrition including fasting and protein consumption, and the importance of meal timing and insulin sensitivity.

Emma shares practical advice on setting nutrition targets, the gradual increase of fibre intake for gut health, and the role of supplements. They also touch on the individualized approach needed for training during menopause and the importance of community in building a successful health and fitness business.

Takeaways

Just do something, just move.

Chapters

00:00 Introduction to Health Myths and Misconceptions

Welcome Back to Inside Matters: Boost Your Gut Health with These Three Essential Tips

Hello to all our Inside Matters listeners! After a brief hiatus, I'm excited to return and dive into one of our favorite topics: gut health. Today, I'm sharing three essential gut health tips, rooted in personal experience and backed by science, to help you enhance your overall wellness.

#### Tip 1: Incorporate Polyphenol-Rich Foods

Polyphenols have been a recurring topic on our podcast, and for good reason. As one of the three Ps—prebiotics, probiotics, and polyphenols—they play a critical role in promoting gut health. Polyphenols are powerful antioxidants found in many plant-based foods. They encourage the growth of beneficial gut bacteria while suppressing harmful varieties.

**The Science Behind Polyphenols**

Animal studies and human observational evidence demonstrate that polyphenols can significantly impact the microbiome. Notably, blue zones—regions of the world with high concentrations of centenarians—feature diets rich in polyphenols. When polyphenols reach the colon, gut bacteria metabolize them into bioactive compounds, fostering a symbiotic relationship that leads to numerous health benefits.

**Key Polyphenol-Rich Foods**

1. **Dark Chocolate**: High-cacao, low-sugar dark chocolate is not only delicious but also loaded with flavonoids, a type of polyphenol that supports gut bacteria diversity.

For optimal health, integrate these foods into your daily routine. For instance, enjoy a piece of dark chocolate post-exercise or start your day with a punnet of blueberries and raspberries.

4. **Olive Oil**: Rich in various polyphenols, including oleuropein, olive oil nourishes gut bacteria and protects against oxidative stress. Use it as your primary cooking fat and for salad dressings, ensuring you choose high-quality, extra virgin olive oil from reputable sources.

Tip 2: Consider Spacing Out Your Meals

Frequent eating and constant snacking can disrupt the migrating motor complex (MMC)—a recurring pattern that occurs in the stomach and small intestine during fasting periods. This "cleansing wave" moves undigested food and bacteria through the digestive tract, preventing the buildup of harmful substances.

**Why Spacing Meals Matters**

Allowing time between meals helps avoid issues like bloating, gas, and digestive discomfort. The classic advice is to wait three to four hours between meals. Personally, I have a large breakfast or brunch post-exercise, a healthy snack like a high-quality protein bar, and a substantial dinner. This eating pattern supports my nutritional needs and ensures I'm not feeling hungry before bed.

Tip 3: Engage in Belly Breathing

Diaphragmatic breathing, or belly breathing, is a simple yet powerful technique that stimulates the vagus nerve, connecting the gut to the brain. This type of breathing promotes deep relaxation and has significant benefits for gut health.

**How to Practice Belly Breathing**

1. Sit or lie in a comfortable position.

Aim to practice this for five to ten minutes daily. Belly breathing can reduce stress—a major trigger for gut issues like IBS—and improve symptoms such as bloating, constipation, and abdominal pain.

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In summary, incorporating polyphenol-rich foods, spacing out your meals, and engaging in diaphragmatic breathing can profoundly benefit your gut health. I hope you've enjoyed this return episode of Inside Matters. Recording this podcast is intellectually stimulating, and the positive feedback from you, our listeners, makes it all worthwhile.

Remember, gut health is health. Feel free to reach out with suggestions for future content. Thank you for listening!

Stay healthy,

In this Biome Bite, Dr James McIlroy 3 myths and misconceptions about the gut microbiome.

00:00:00 Intro

00:00:56 Weight of the microbiome

00:04:39 We’re more microbial than human

00:07:00 Microbiota is inherited from our mothers

 What we're talking about today on this Biome Bite is microbiome myths and misconceptions. We're going to cover 3.

There's this lovely article written by Professor Alan Walker, who's been on the podcast, highly recommend you watch and listen to that episode, and Professor Leslie Hoyles and it's in Nature Microbiology, so really nice high-impact scientific journal, and they go through a lot of the things which you hear within this space, be it in social media, be it in when you're speaking to someone who's just generally taking an interest in the microbiome, even in scientific papers, this still comes up, even though it's been refuted and proven to be untrue.

So we're going to arm you as the listeners to Inside Matters with this knowledge so that you can truly start to become an expert and you've got your finger on the pulse of the field. And if you hear it, you go, I heard on inside matters. That's not true.  So the first one is the human microbiota weighs one to two kg.

The size, shape, mass, and composition of stool can vary within an individual and also differ among various people. According to the paper, an average human stool typically weighs less than 200 grams when wet. However, in our experience, we have observed significant variations, which makes it a likely accurate statement.

The human microbiota, particularly the gut microbiota, plays a crucial role in maintaining our health. The weight of these microorganisms has been the subject of many studies, and recent findings suggest that the total weight is likely to be less than previously thought. In sudden death cases, post-mortem assessments of the total colonic contents have shown a range between 83 to 421 grams. This data challenges earlier estimates that placed the weight of the human microbiota in the range of one to two kilograms.

Researchers concluded that barring unusual instances of severe constipation, where an individual's colon is compacted with a large amount of faecal matter, the total weight of the gut microbiota is more likely to be under 500 grams. This new understanding shifts the narrative about the microbiota's mass and provides a more accurate picture of human physiology. It also emphasizes the importance of considering bodily variations and conditions when making generalizations about biological metrics.

These findings have significant implications for medical science and nutrition. A more precise understanding of the microbiota's weight can impact how we approach digestive health, the development of probiotics, and the treatment of gastrointestinal diseases. It underscores the importance of continual research and reassessment in the scientific field to ensure our knowledge remains as accurate and useful as possible.

The human microbiota, particularly the gut microbiota, plays a crucial role in maintaining our health. The weight of these microorganisms has been the subject of many studies, and recent findings suggest that the total weight is likely to be less than previously thought. In sudden death cases, post-mortem assessments of the total colonic contents have shown a range between 83 to 421 grams. This data challenges earlier estimates that placed the weight of the human microbiota in the range of one to two kilograms.

Researchers concluded that barring unusual instances of severe constipation, where an individual's colon is compacted with a large amount of faecal matter, the total weight of the gut microbiota is more likely to be under 500 grams. This new understanding shifts the narrative about the microbiota's mass and provides a more accurate picture of human physiology. It also emphasizes the importance of considering bodily variations and conditions when making generalizations about biological metrics.

These findings have significant implications for medical science and nutrition. A more precise understanding of the microbiota's weight can impact how we approach digestive health, the development of probiotics, and the treatment of gastrointestinal diseases. It underscores the importance of continual research and reassessment in the scientific field to ensure our knowledge remains as accurate and useful as possible.