The Gut Insiders
Dr. Will Bulsiewicz
Better health begins in your gut. But medicine isn't "one size fits all," and your gut microbiome is as distinct as your fingerprint.
Board-certified gastroenterologist and New York Times bestselling author Dr. Will Bulsiewicz is on a mission to help you feel better through cutting-edge science and two decades of clinical expertise that will make you think differently about the food you eat — and the trillions of hungry organisms living in your colon.
Join Dr. B and co-host Chuck Carroll for gut-first discussions about diet, exercise, sleep, stress, trauma, and your health questions.
Board-certified gastroenterologist and New York Times bestselling author Dr. Will Bulsiewicz is on a mission to help you feel better through cutting-edge science and two decades of clinical expertise that will make you think differently about the food you eat — and the trillions of hungry organisms living in your colon.
Join Dr. B and co-host Chuck Carroll for gut-first discussions about diet, exercise, sleep, stress, trauma, and your health questions.
Episodes
Mentioned books
Jan 26, 2026 • 16min
4 Habits to Keep Your Gut Microbiome Strong When Taking Antibiotics
Discussion of how antibiotics reshape the gut microbiome and which changes can linger. Practical strategies to protect and recover gut diversity using fiber, targeted prebiotics, and lifestyle habits. Updated guidance on when to use probiotics and the role of Saccharomyces boulardii for high-risk situations.
Jan 19, 2026 • 14min
The Silent Disease Lurking In Young, Healthy People: What I've Learned After 9,000 Colonoscopies
Between 2010 and 2022, during my years in gastroenterology fellowship and clinical practice, I personally performed nearly 9,000 colonoscopies. That’s 9,000 times looking directly at the inside of the human colon. 9,000 chances to notice patterns that most people never hear about.What I want to share today isn’t meant to scare you. It’s meant to inform you. And, ultimately, to empower you.Dr. B's new book, "Plant Powered Plus," is available now: https://www.amazon.com/Plant-Powered-Plus-Activate-Inflammation/dp/B0FNDSR2C5Subscribe to The Gut Insiders wherever you get your podcasts:🍎 https://apple.co/4qqHK33🟢 https://bit.ly/4q93399Follow Dr. B on Instagram: https://www.instagram.com/theguthealthmd/Learn more about the evidence-based gut health formulas in 38TERA: https://38tera.comPeer reviewed studies cited in this video:▶ https://acsjournals.onlinelibrary.wiley.com/doi/10.3322/caac.21601▶ https://academic.oup.com/jnci/article/109/8/djw322/3053481?login=false▶ https://www.acpjournals.org/doi/10.7326/0003-4819-150-1-200901060-00306▶ https://pmc.ncbi.nlm.nih.gov/articles/PMC9036624/▶ https://pubmed.ncbi.nlm.nih.gov/19765672/
Jan 13, 2026 • 49min
02 Five Clues Your Body Is Stuck in the Inflammation Trap (and How to Break Free)
If you're always feeling tired, achy, or suffering from brain fog, it's likely due to chronic inflammation. But the root cause isn't in your joints, muscles, or brain. It's all about what we eat, and how that food interacts with our incredibly complex gut microbiome.This week on The Gut Insiders podcast, Chuck and Dr. B break down the 5 clues signaling the inflammation trap, and the best ways to break free from the cycle.Dr. B's new book, "Plant Powered Plus," is available now: https://www.amazon.com/Plant-Powered-Plus-Activate-Inflammation/dp/B0FNDSR2C5Subscribe to The Gut Insiders wherever you get your podcasts:🍎 https://apple.co/4qqHK33🟢 https://bit.ly/4q93399Follow Dr. B on Instagram: https://www.instagram.com/theguthealthmd/Learn more about the evidence-based gut health formulas in 38TERA: https://38tera.comHosted by Chuck Carroll and Dr. Will BulsiewiczProduced by Chuck Carroll & Matt SilvermanEdited by Matt Silverman
Jan 8, 2026 • 13min
Chronic Inflammation Is Aging You. Here's How to Take Control
Aging is often described as "inevitable," and while we can't change time, we absolutely can affect how we *feel* as we age.If you're tired of brain fog, fatigue, achy joints, and poor sleep, the solution might be in your intestines.These are 3 science-backed ways to slow your biological age, and it's never too late to start!
Jan 8, 2026 • 12min
30 Plants Per Week: The Key to Gut Health (and Why Most People Fail)
If you're ready improve your gut microbiome by eating 30 different plants per week, the first 7 days determine everything, and they're your best chance to create momentum.BUT: 70% of people make the mistake of going too fast. They get bloated, feel miserable, and quit.Here's why your health journey will be different.Written and hosted by Dr. Will BulsiewiczProduced by Matt SilvermanEdited by Avital Oehler
Jan 8, 2026 • 12min
Stop Wasting Money on Probiotics. Here's What Actually Works.
For the first 10 years of my career as a gastroenterologist, I prescribed probiotics the way I was taught in medical school — generically, without strain specificity, without proper dosing. And honestly? Most of my patients saw zero results.Then I dove into the actual research—and what I found made me angry. These are the things the probiotics industry doesn't want you to hear.Written and hosted by Dr. Will BulsiewiczProduced by Matt SilvermanEdited by Avital Oehler
Dec 29, 2025 • 1h
01 The Science of Farts and What They Say About Our Health (The Gut Insiders)
Farts! We all do it. But it doesn't take a scientist to know that they're not all created equal - especially when it comes to the sniff test.What can the chemistry of gas tell us about our diet and health? And what changes can we make to ensure our "air biscuits" are slient but less deadly?In the first episode of The Gut Insiders podcast, our hosts Chuck Carroll and gastroenterologist Dr. Will Bulsiewicz sit down to investigate the science of farts.Hosted by Chuck Carroll and Dr. Will BulsiewiczProduced by Chuck Carroll & Matt SilvermanEdited by Matt Silverman
