Dr Karan Explores

💬 GLP-1 pizzas and ready meals are now on the menu. Telehealth pharmacies are selling dodgy versions of the drugs to the masses. And new, more powerful drugs are about to arrive. ⚡The weight loss economy is booming - and it’s reshaping society. GLP-1 and weight loss expert Dr. Spencer Nadolsky is back on the podcast to fill us in on the latest. From myth busting and unearthing telehealth scams -...

Family meals aren’t just a “nice-to-have”. They’re a longevity habit hiding in plain sight. In this episode, Dr Karan Rajan and Shawn Stevenson unpack why eating together can improve kids’ nutrition, reduce ultra-processed food reliance, support healthier eating behaviours, and strengthen the social bonds that consistently show up in long-term health and longevity conversations. You’ll hear about:...

💬 Are your supplements helping you… or are you just paying for sawdust? The supplement industry is booming, but it’s also one of the easiest industries to fake. In this episode, Dr Karan is joined by Dr Darshan Shah (surgeon and longevity expert) to break down what actually works, what’s likely a waste of money, and how to avoid supplements that can genuinely cause harm. ⚡We cover contamination,...

We track our steps, sleep, calories… even glucose. So why are we STILL getting sicker? In this episode, Dr Karan sits down with Josh Clemente (former SpaceX engineer and founder of Levels) to explore a big question: Are health wearables actually helping us, or are we just collecting data with no real direction? Josh explains why aerospace treats “health” totally differently to medicine, why we sho...

💬 What does it actually take to rebuild your life after addiction? Ken Rideout has lived multiple lives: Former prison guard, Wall Street trader, opioid addict… and now the fastest marathoner in the world over 50. ⚡In this episode, Ken opens up about the darkest moment that forced him to change, what opioid withdrawal REALLY feels like, and the identity shift that helped him go from rock bottom...

💬  When it comes to improving your health, what comes to mind first? Working on your muscles? Improving your gut? What about strengthening your BONES? ⚡Bone health is massively overlooked by most people - and yet it has such a huge impact on how you feel, how much pain you experience and whether you’ll age gracefully or not. ⚡That’s why I’ve brought on Belinda Beck, founder of the Bone Clinic -...

💬 The GLP-1 weight loss movement is blowing up. On the one hand, we now have a drug that tackles the obesity epidemic like never before. On the other, we’re seeing the rise of food anxiety and the return of thin-at-all-costs culture. Drugs like Ozempic and Wegovy are reshaping medicine, culture and the economy. ⚡So to get the latest on these rapid advancements, we speak to endocrinology and meta...

💬 We’re getting so much wrong about fertility. What causes infertility, how long does the fertile window stay open, how important is the man in the equation? Fortunately, we have a world-leading expert to clear everything up. ⚡ Dr Lucky Sekhon is a board certified OBGYN and fertility expert - and has benefitted from IVF herself. She’s also the author of a new book called Lucky Egg - a guide to h...

💬Your oral microbiome is directly tied to your gut and overall health. You can fix many health problems by starting in the mouth - and this episode is a guide on how to do exactly that. ⚡Dr. Karan speaks to Dr Victoria Sampson, an award winning functional dentist and founder of THS Labs. Together they explore the science of the oral microbiome, and how you can better look after your teeth and or...

⚡In this episode, Dr. Karan sits down with IBS dietitian Kirsten Jackson to break down the complexities of Irritable Bowel Syndrome (IBS). Kirsten, who has firsthand experience with IBS, explains the gut-brain connection, the role of the microbiome, and why IBS is often misunderstood. 💬 They dive into different IBS types, dietary interventions like the low FODMAP diet, and practical tips for man...

⚡Join Dr. Karan as he dives deep into the science of the vaginal microbiome with Valentina Milanova, the founder and CEO of Daye. Learn why understanding and caring for your vaginal health is more important than ever. 💬 In this episode, Valentina breaks down the critical role the vaginal microbiome plays in overall health, fertility, and even pregnancy outcomes. From the dangers of douching to t...

⚡ Knowing or learning another language has been shown to reduce the risk of getting dementia. The words we use influence the way we view things like healthcare and death. And the language of food is a treasure trove of history that holds stories of our culture and heritage. 💬 That’s why digital journalist and creator Sophia Smith-Galer is so passionate about the subject. She has an online series...

⚡ I asked you to send in your questions about FIBRE - and you really delivered! In this AMA I tackle your burning questions about one of the most important - and underhyped - nutrients for your health. 💬 Everything from the best fibre sources to include in your diet, to actionable advice on fibre intake, dosage and timing - my producer Ollie Guillou and I cover a wide range of fantastic question...

⚡In a world obsessed with wearables and health tracking, we’ve been ignoring one of the most powerful health indicators, our poop. In this episode, Dr. Karan sits down with Scott Hickle, co-founder of Throne Science, to explore how the next big health revolution might come from your toilet. Together, they explore how stool and urine can reveal everything from hydration and stress to early signs o...

⚡ Our gut microbes are each individual and highly variable - shaped by many different factors. So how do you take control of your gut health, when everyone’s gut bugs are unique 💬 Dr Amine is a microbiome expert and CEO at SwipeBiome. He also hosts The Microbiome Mavericks podcast. His company aims to untangle the messy web of gut information we currently have access to, using technology and AI...

⚡ There is a lot we don’t know about the menopause. It’s a stage of life that can be difficult to navigate for many women - especially since the advice online is all over the place. That’s why I’ve brought on leading menopause researcher Professor Susan Davis. 💬 Susan is the Head of the Monash University Women’s Health Research Program. Online she’s dedicated to clearing up the myths and dogma t...

⚡ Women’s health issues have been ignored for so long - but science is finally catching up. The problem is, the message still hasn’t reached everyone. That’s why I’m doing a deep dive into the real science of hormone health, birth control, fertility and the menopause. 💬 In this episode of the podcast, I offer practical and actionable advice on each of these important areas of female health, feat...

⚡ Is fasting really a magic solution for weight loss? Some people argue it’s just a good way of cutting calories, while others say its benefits go far beyond that. But what does the science say? From fat loss, to appetite regulation and gut health improvements, I explore the good (and the bad) of fasting for health.  💬 In this special solo episode of the podcast, I also discuss the growing conce...

⚡ Have we got ultra-processed food wrong? Is the old term “junk food” a better measure of health? It’s clear our current food environment is not just damaging our health, but the planet too. But James Collier argues ultra-processed food needs to be part of the solution. 💬 James is the co-founder of Huel and former NHS dietitian. He’s also the author of Well Fed . In the book he outlines how mode...

⚡ Clever marketing tactics can often shift us away from what’s important - as advertisers look for fresh ways to exploit our psychology. So, when it comes to your health, how do you stay savvy in a world which is pulling your attention in the wrong direction? 💬 Rory Sutherland is one of the world’s foremost experts on marketing and human behaviour. He’s an author, columnist and Vice Chairman of...

⚡ Creatine isn’t just for bodybuilders - it’s an incredible supplement for just about everyone. It’s a staple for people who want to build muscle, but new research also shows surprising links to brain and heart health.  💬 In a special solo episode of the podcast, I explain just how amazing creatine is - and bust the biggest myths about its safety. I also take an unconventional look at skincare t...

⚡ The US Government has made waves suggesting Tylenol, aka paracetamol, causes autism. President Donald Trump publicly warned pregnant women to avoid the common pain-killer, even urging them to “tough it out” if they have a fever. But what are they basing this information on? Is there even an ounce of truth in the claim? 💬 In a special solo episode of the podcast, I address the Tylenol controver...

⚡ Most of us have experienced back pain at some point in our lives. As we sit more and move less, it’s becoming increasingly common. So how do we fix it? And what are the major things we need to avoid doing to have a healthy spine into old age? 💬 Dr Stuart McGill is the “Back Mechanic” - here to fix our backs with evidence-backed science. He’s a renowned Professor Emeritus of Spine Biomechanics...

⚡ Why is everyone so obsessed with protein at the moment - and do we really need as much of it as the fitness gurus claim? 💬 In a special solo episode of the podcast, I tackle this and more. Guided by science and the latest research, I offer actionable advice for anyone who’s confused by the protein craze.  I also dig into the science of collagen supplements - are they more hype than health? And...

⚡ I am up to something huge. My brand new fibre supplement is almost ready - and I can’t wait for it to be in your hands. This is the most detailed look yet at what I’ve been up to for the past 2 years. Want to know more about your favourite Doctor?  💬 The roles are reversed in this episode, as my producer Ollie Guillou interviews ME. We chat about how I got started in medicine and content creat...