Dr. Karan Rajan—surgeon, social media sensation, and gut-health educator to 10 million followers—joins Ali Hashemi to unpack some of the biggest myths about the gut. They discuss why we’re all “donuts,” how to manage IBS, the critical importance of fiber, and the surprising ways our microbes can influence our mood and metabolism. Dr. Rajan also shares insights on cutting-edge health tech, the future of personalized care, and the balance of practicing medicine in a modern, fast-changing world.00:51 Meet Dr. Karen, UK Surgeon & Gut Health Expert

01:20 The Gut as an External-Facing Organ: A Donut Analogy
02:30 Debunking “Leaky Gut”: Symptom, Not a Disease
04:00 Exploring the Gut–Brain Axis: Vagus Nerve & Neurotransmitters
07:00 Gut Health & Obesity: Beyond Willpower
08:00 Dietary Fiber Fundamentals: Fueling a Healthy Gut
09:00 Gluten, Probiotics, Prebiotics & Postbiotics: Fact vs. Fiction
10:00 Tracking Gut Health: Data, Food Diaries & Digital Tools
12:00 Integrating Tech & Trust: The Future of Personalized Healthcare
14:00 The Agency Chain: Turning Data into Actionable Outcomes
40:03 Bridging Gaps: Merging Public Understanding with Health Tech
44:00 Rapid Fire Q&A: Viral Content, Personal Challenges & Insights
48:17 Closing Thoughts: Empowering Patients & the Future of Gut Health