

Dr Karan Explores
OG Podcasts
Join Dr Karan Rajan, medical doctor, Founder of LOAM Science and Sunday Times bestselling author as he meets the world's foremost experts in science and medicine to cut through the BS of modern health advice. One of the most-followed medical voices online, with over 10 million followers worldwide. New episodes every week.
Episodes
Mentioned books

Oct 12, 2026 • 39min
Are Microplastics Really Making Us Sick? | Dr Stephanie Wright
Microplastics are everywhere - in the food we eat, the air we breathe, and the environment around us. But how much do we actually know about what they are doing inside the human body?In this episode I speak to microplastics researcher Dr Stephanie Wright to discuss everything from the difference between micro and nanoplastics, how particles interact with cells and the immune system and how researchers even measure plastic in blood and tissues.Timestamps(0:00) Intro - Are microplastics actually harming us?(0:51) What do we actually know about the health effects?(2:00) What animal studies can - and can't - tell us(4:16) Should we be more concerned about nanoplastics?(5:52) How could microplastics cause harm inside the body?(7:50) Microplastics, the gut and the immune system(9:03) How do we measure microplastics in the body?(12:06) Microplastics in the brain - what was wrong with the research?(14:19) How much microplastic are we actually exposed to?(15:40) Can microplastics be removed from the body?(17:01) The biggest sources: heating plastic, tea bags and tyre wear(19:16) Which foods contain the most microplastics?(20:37) Can plants absorb nanoplastics from soil?(21:45) Microplastics in the placenta and fetus(24:00) Will microplastics accumulate as we age?(25:50) Are we blaming microplastics for too many health problems?(27:00) The 'exposome' - why your whole environment matters(30:58) How dangerous are microplastics compared with other pollutants?(32:14) Can fibre help remove microplastics?(38:50) What we still don't know about microplastics🦠LOAM Science The world's first invisible fiber blend with a clinical trial! Get 10% OFF LOAM with code DRKARAN10: https://loamscience.com/products/loam-prebiotic-fiber-formula?utm_source=youtube&utm_medium=social&utm_campaign=drkaran 📧Get my free weekly newsletter filled with easy to action health tips, interesting facts and science to fill your curiosity: https://drkaran.kit.com/subscribe 📕 This Book May Save Your LifeThe No.1 Sunday Times bestseller packed with evidence-based advice to improve your health.https://geni.us/DrKaranBook 📕 This Is Vital InformationOrder my new book covering everything you're too embarrassed to ask your doctor but really should.https://linktr.ee/ThisisVitalInformation 🤖 Dr Karan's Digital TwinAsk my AI twin your health questions anytime.http://DrKaran.ai About Dr Karan:Dr. Karan Rajan is a doctor, author, Founder of LOAM Science and Chief of Science at Throne Science, dedicated to making health and medical science accessible to all. Through evidence-based analysis, he addresses topics such as gut health, brain health, and healthy lifestyle choices, while dispelling common medical myths with a touch of dark humor.📱Connect with me:Instagram: https://www.instagram.com/drkaranrajan/ TikTok: https://www.tiktok.com/@dr.karanr Facebook: https://www.facebook.com/DrKaranR/ Website: www.drkaranrajan.com X: https://twitter.com/drkaranrajan

Oct 5, 2026 • 38min
The Real Reason You Can't Lose Weight - And How To Fix It | Dr. Simon Cork
Why does your body fight so hard to keep you at the same weight - even if it’s an unhealthy weight?In this episode I speak to Dr. Simon Cork, an expert in appetite and gut hormone physiology at Anglia Ruskin University. He explains why our hormones trick our body into weight gain and what GLP-1 medications actually do to your gut and brain. Timestamps(0:00) Intro - Why it’s so tough to shift our weight from baseline(3:14) If weight “set points” exist, why is everyone gaining weight?(5:22) What leptin is really doing for your hunger(8:31) The gut-brain axis and the role of the vagus nerve(10:31) How long does it take to know you’re full from eating?(14:01) Can you resensitise your leptin signals?(17:11) Does vagus nerve stimulation work to reduce hunger?(19:24) Can you maintain the effects of GLP-1s without taking them forever?(23:23) Can GLP-1s be used effectively outside of weight loss?(31:43) Why some people are non-responders to GLP-1s 🦠LOAM Science The world's first invisible fiber blend with a clinical trial! Get 10% OFF LOAM with code DRKARAN10: https://loamscience.com/products/loam-prebiotic-fiber-formula?utm_source=youtube&utm_medium=social&utm_campaign=drkaran 📧Get my free weekly newsletter filled with easy to action health tips, interesting facts and science to fill your curiosity: https://drkaran.kit.com/subscribe 📕 This Book May Save Your LifeThe No.1 Sunday Times bestseller packed with evidence-based advice to improve your health.https://geni.us/DrKaranBook 📕 This Is Vital InformationOrder my new book covering everything you're too embarrassed to ask your doctor but really should.https://linktr.ee/ThisisVitalInformation 🤖 Dr Karan's Digital TwinAsk my AI twin your health questions anytime.http://DrKaran.ai About Dr Karan:Dr. Karan Rajan is a doctor, author, Founder of LOAM Science and Chief of Science at Throne Science, dedicated to making health and medical science accessible to all. Through evidence-based analysis, he addresses topics such as gut health, brain health, and healthy lifestyle choices, while dispelling common medical myths with a touch of dark humor.📱Connect with me:Instagram: https://www.instagram.com/drkaranrajan/ TikTok: https://www.tiktok.com/@dr.karanr Facebook: https://www.facebook.com/DrKaranR/ Website: www.drkaranrajan.com X: https://twitter.com/drkaranrajan

Sep 28, 2026 • 42min
He Got Cancer - And The Misinformation Made Him Furious | Jamie East
Jamie East, a British broadcaster and podcaster, shares his candid leukemia journey and the shock of an unexpected diagnosis. He explores subtle symptoms, navigating Google and AI for answers, and the dangerous world of cancer misinformation. They unpack sugar myths, health grifters, victim-blaming, battle language, and the hidden impact of treatment on family life.

Sep 21, 2026 • 47min
The Dangerous Invisible Fat You’re Not Paying Attention To | Prof. Jimmy Bell
Most of us only pay attention to the fat around our bellies or our hips, but there’s a hidden fat we’re just ignoring. You can’t see visceral fat, but too much of it is dangerous - even slim people can have harmful levels without even knowing.In this episode I speak to visceral fat expert Professor Jimmy Bell to find out what it’s doing in our bodies when there’s too much - and why you shouldn’t be worrying about weight if you want to stay healthy. Timestamps(0:00) Intro - The role of fat in your body(4:16) Why fat is actually a good thing(8:18) Visceral fat vs subcutaneous fat (11:37) Thin on the outside - fat on the inside(19:43) Why you shouldn’t chase scale weight(22:28) Differences between where men and women store fat(27:25) Do genetics affect baseline levels of visceral fat?(32:25) How weight loss injections are impacting visceral fat(37:03) The role of fast food in visceral fat accumulation(42:31) Is the gut linked to fat gain?(44:18) What should you do to reduce visceral fat? 🦠LOAM Science The world's first invisible fiber blend with a clinical trial! Get 10% OFF LOAM with code DRKARAN10: https://loamscience.com/products/loam-prebiotic-fiber-formula?utm_source=youtube&utm_medium=social&utm_campaign=drkaran 📧Get my free weekly newsletter filled with easy to action health tips, interesting facts and science to fill your curiosity: https://drkaran.kit.com/subscribe 📕 This Book May Save Your LifeThe No.1 Sunday Times bestseller packed with evidence-based advice to improve your health.https://geni.us/DrKaranBook 📕 This Is Vital InformationOrder my new book covering everything you're too embarrassed to ask your doctor but really should.https://linktr.ee/ThisisVitalInformation 🤖 Dr Karan's Digital TwinAsk my AI twin your health questions anytime.http://DrKaran.ai About Dr Karan:Dr. Karan Rajan is a doctor, author, Founder of LOAM Science and Chief of Science at Throne Science, dedicated to making health and medical science accessible to all. Through evidence-based analysis, he addresses topics such as gut health, brain health, and healthy lifestyle choices, while dispelling common medical myths with a touch of dark humor.📱Connect with me:Instagram: https://www.instagram.com/drkaranrajan/ TikTok: https://www.tiktok.com/@dr.karanr Facebook: https://www.facebook.com/DrKaranR/ Website: www.drkaranrajan.com X: https://twitter.com/drkaranrajan

Sep 14, 2026 • 39min
How Worried Should We Be About Glyphosate? | Michael Antoniou
How worried should we really be about glyphosate? There’s growing fear that the world’s most popular weed killer is causing everything from cancer to gut problems. But is the evidence clear enough?In this episode I speak to Professor Michael Antoniou, who explains what he’s discovered by studying the health effects of glyphosate exposure - particularly within commercial formulations. Timestamps(0:00) Intro - The growing fear around glyphosate(0:42) What is glyphosate and how does it work?(5:53) The link between glyphosate and GMOs(7:42) The microbiome impact(11:48) Does the fear match reality?(19:55) Why did regulators conclude it was safe?(22:07) Why we should test commercial formulations(25:34) Why microbiome work is still early stage(28:30) Do some foods carry more glyphosate?(30:00) Is glyphosate responsible for a reduction in soil quality?(34:03) Why we still need more human data 🦠LOAM Science The world's first invisible fiber blend with a clinical trial! Get 10% OFF LOAM with code DRKARAN10: https://loamscience.com/products/loam-prebiotic-fiber-formula?utm_source=youtube&utm_medium=social&utm_campaign=drkaran 🚽 Throne ScienceDiscover the world’s first continuous tracker for getting personalized insight about gut health, hydration, and prostate health with every flush.Get $80 off with code DRKARAN: https://thronescience.com/?utm_source=karan&utm_medium=youtube 📧Get my free weekly newsletter filled with easy to action health tips, interesting facts and science to fill your curiosity: https://drkaran.kit.com/subscribe 📕 This Book May Save Your LifeThe No.1 Sunday Times bestseller packed with evidence-based advice to improve your health.https://geni.us/DrKaranBook 📕 This Is Vital InformationOrder my new book covering everything you're too embarrassed to ask your doctor but really should.https://linktr.ee/ThisisVitalInformation 🤖 Dr Karan's Digital TwinAsk my AI twin your health questions anytime.http://DrKaran.ai About Dr Karan:Dr. Karan Rajan is a doctor, author, Founder of LOAM Science and Chief of Science at Throne Science, dedicated to making health and medical science accessible to all. Through evidence-based analysis, he addresses topics such as gut health, brain health, and healthy lifestyle choices, while dispelling common medical myths with a touch of dark humor.📱Connect with me:Instagram: https://www.instagram.com/drkaranrajan/ TikTok: https://www.tiktok.com/@dr.karanr Facebook: https://www.facebook.com/DrKaranR/ Website: www.drkaranrajan.com X: https://twitter.com/drkaranrajan

Sep 7, 2026 • 46min
Fatty Liver Expert: Your Liver Could Be In Trouble | Dr. Vishal Patel
Fatty liver disease affects a massive 1 in 3 people, yet most of us don’t even realise we have it - until it’s too late. But it is reversible. I know, because I’ve done it myself.In this episode I speak to Dr Vishal Patel, Consultant Hepatologist & Endoscopist at the Liver Unit, King's College Hospital. He breaks down the surprising impact of liver health on your whole body, warning signs that something’s wrong - and how to protect your liver.Timestamps(0:00) Intro - Why you need to rethink liver health(3:05) What impact does the liver have throughout the body?(5:37) How Dr Karan discovered he had fatty liver disease(11:09) How long do you have to address fatty liver disease?(16:25) How weight loss makes the biggest difference(19:21) How food can increase liver function(22:46) Why fibre recommendations are still not enough(25:17) Why some supplements can make liver health worse(31:15) Are there signs your liver health isn’t good?(36:06) How much can your liver actually process?(39:34) How liver health links to oral health and the gut microbiome 🦠LOAM Science The world's first invisible fiber blend with a clinical trial! Get 10% OFF LOAM with code DRKARAN10: https://loamscience.com/products/loam-prebiotic-fiber-formula?utm_source=youtube&utm_medium=social&utm_campaign=drkaran 🚽 Throne ScienceDiscover the world’s first continuous tracker for getting personalized insight about gut health, hydration, and prostate health with every flush.Get $80 off with code DRKARAN: https://thronescience.com/?utm_source=karan&utm_medium=youtube 📧Get my free weekly newsletter filled with easy to action health tips, interesting facts and science to fill your curiosity: https://drkaran.kit.com/subscribe 📕 This Book May Save Your LifeThe No.1 Sunday Times bestseller packed with evidence-based advice to improve your health.https://geni.us/DrKaranBook 📕 This Is Vital InformationOrder my new book covering everything you're too embarrassed to ask your doctor but really should.https://linktr.ee/ThisisVitalInformation 🤖 Dr Karan's Digital TwinAsk my AI twin your health questions anytime.http://DrKaran.ai About Dr Karan:Dr. Karan Rajan is a doctor, author, Founder of LOAM Science and Chief of Science at Throne Science, dedicated to making health and medical science accessible to all. Through evidence-based analysis, he addresses topics such as gut health, brain health, and healthy lifestyle choices, while dispelling common medical myths with a touch of dark humor.📱Connect with me:Instagram: https://www.instagram.com/drkaranrajan/ TikTok: https://www.tiktok.com/@dr.karanr Facebook: https://www.facebook.com/DrKaranR/ Website: www.drkaranrajan.com X: https://twitter.com/drkaranrajan

Aug 31, 2026 • 35min
The Everyday Items Exposing You to Microplastics | Dana Zhaxylykova
Microplastics are everywhere - in the food we eat, the water we drink, and even the air we breathe. Increasingly, we hear about the dangers of these tiny particles - but what happens when they make their way into our bodies; and what could it mean for our health, and the environment?In this episode I speak to microplastics researcher Dana Zhaxylykova, to discover what we should know about micro and nanoplastics, and their effects on the human body and world as a whole - where we’re exposed to them, how the food chain and environment is impacted, and how they may interact with our cells, organs and immune system. We explore what the science tells us so far, what remains uncertain, and whether there are practical steps we can take to reduce our exposure.Timestamps(0:00) Intro - What are microplastics?(1:22) Why are we hearing so much about microplastics now?(3:06) Environmental worries of plastic pollution(7:40) Human health impacts(8:57) The “credit card-sized” ingestion estimate (9:34) The main culprits of exposure to microplastics(12:29) How harm from micro and nano plastics occurs(15:59) Can microplastics be removed from the body?(18:30) Research into health effects(19:45) Impacts of microplastics on the gut(21:28) How will microplastics shape the planet going forward?(22:12) How tardigrades are immune and use microplastics to travel(23:25) How could enzymes and probiotics help?(26:25) Are particular areas of the world disproportionately affected?(29:09) What regulations and controls are there?(32:22) Top tips for people to reduce microplastic burden🦠LOAM Science The world's first invisible fiber blend with a clinical trial! Get 10% OFF LOAM with code DRKARAN10: https://loamscience.com/products/loam-prebiotic-fiber-formula?utm_source=youtube&utm_medium=social&utm_campaign=drkaran 🚽 Throne ScienceDiscover the world’s first continuous tracker for getting personalized insight about gut health, hydration, and prostate health with every flush.Get $80 off with code DRKARAN: https://thronescience.com/?utm_source=karan&utm_medium=youtube 📧Get my free weekly newsletter filled with easy to action health tips, interesting facts and science to fill your curiosity: https://drkaran.kit.com/subscribe 📕 This Book May Save Your LifeThe No.1 Sunday Times bestseller packed with evidence-based advice to improve your health.https://geni.us/DrKaranBook 📕 This Is Vital InformationOrder my new book covering everything you're too embarrassed to ask your doctor but really should.https://linktr.ee/ThisisVitalInformation 🤖 Dr Karan's Digital TwinAsk my AI twin your health questions anytime.http://DrKaran.ai About Dr Karan:Dr. Karan Rajan is a doctor, author, Founder of LOAM Science and Chief of Science at Throne Science, dedicated to making health and medical science accessible to all. Through evidence-based analysis, he addresses topics such as gut health, brain health, and healthy lifestyle choices, while dispelling common medical myths with a touch of dark humor.📱Connect with me:Instagram: https://www.instagram.com/drkaranrajan/ TikTok: https://www.tiktok.com/@dr.karanr Facebook: https://www.facebook.com/DrKaranR/ Website: www.drkaranrajan.com X: https://twitter.com/drkaranrajan

Aug 24, 2026 • 54min
You're Eating More Protein Than You Need | Prof. Leigh Breen
Prof. Leigh Breen, a translational physiology expert on protein metabolism and muscle health. He explores how muscle acts as an endocrine organ and its links to brain and gut health. He questions protein-first thinking, outlines sensible daily protein ranges, and discusses collagen, plant vs animal protein, and how training preserves muscle across aging.

Aug 18, 2026 • 37sec
Trailer: Dr Karan Explores
A medical science angle on cutting through confusing health advice. Short previews of upcoming deep dives into fiber, genetics, and protein. Clear, skeptical conversations with leading experts in science and medicine.

10 snips
Aug 17, 2026 • 40min
Are We Making Our Children More Allergic? | Prof Adam Fox
Prof Adam Fox, a UK paediatric allergist specialising in food allergy, eczema and asthma, discusses why allergic disease is rising. He explores the roles of the gut microbiome, westernised lifestyles and early-life exposures. Short practical segments cover when and how to introduce allergenic foods, microbiome seeding, and prevention strategies for children.


