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Dr Karan Explores

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Dr Karan Explores
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132 episodes

  • Dr Karan Explores

    Are Microplastics Really Making Us Sick? | Dr Stephanie Wright

    12/10/2026 | 39 mins.
    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 Life
    The No.1 Sunday Times bestseller packed with evidence-based advice to improve your health.
    https://geni.us/DrKaranBook 
    📕 This Is Vital Information
    Order my new book covering everything you're too embarrassed to ask your doctor but really should.
    https://linktr.ee/ThisisVitalInformation 
    🤖 Dr Karan's Digital Twin
    Ask 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
  • Dr Karan Explores

    The Real Reason You Can't Lose Weight - And How To Fix It | Dr. Simon Cork

    05/10/2026 | 37 mins.
    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 Life
    The No.1 Sunday Times bestseller packed with evidence-based advice to improve your health.
    https://geni.us/DrKaranBook 
    📕 This Is Vital Information
    Order my new book covering everything you're too embarrassed to ask your doctor but really should.
    https://linktr.ee/ThisisVitalInformation 
    🤖 Dr Karan's Digital Twin
    Ask 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
  • Dr Karan Explores

    He Got Cancer - And The Misinformation Made Him Furious | Jamie East

    28/09/2026 | 42 mins.
    When broadcaster Jamie East got diagnosed with leukemia, he documented his whole journey and made a podcast about it. During his search for answers he discovered a world of horrendous cancer misinformation - and it made him furious.
    In this episode Jamie talks about his cancer journey in a frank and honest way - the subject of his new podcast ‘Bad Blood’.
    Timestamps
    (0:00) Intro - When Jamie found out he had leukemia
    (2:05) The symptoms
    (7:00) How it feels for doctors delivering bad news
    (11:48) Why leukemia symptoms go unnoticed
    (14:04) Should you use Google to look up your diagnosis?
    (18:01) The misinformation Jamie discovered
    (23:02) The tricks grifters use to spread misinformation
    (26:46) The sugar and cancer myth
    (29:49) Why we need to stop blaming cancer patients
    (32:08) The “fighting” language around cancer
    (36:33) How some cancer drugs impact your life
     🦠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 Life
    The No.1 Sunday Times bestseller packed with evidence-based advice to improve your health.
    https://geni.us/DrKaranBook 
    📕 This Is Vital Information
    Order my new book covering everything you're too embarrassed to ask your doctor but really should.
    https://linktr.ee/ThisisVitalInformation 
    🤖 Dr Karan's Digital Twin
    Ask 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
  • Dr Karan Explores

    The Dangerous Invisible Fat You’re Not Paying Attention To | Prof. Jimmy Bell

    21/09/2026 | 47 mins.
    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 Life
    The No.1 Sunday Times bestseller packed with evidence-based advice to improve your health.
    https://geni.us/DrKaranBook 
    📕 This Is Vital Information
    Order my new book covering everything you're too embarrassed to ask your doctor but really should.
    https://linktr.ee/ThisisVitalInformation 
    🤖 Dr Karan's Digital Twin
    Ask 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
  • Dr Karan Explores

    How Worried Should We Be About Glyphosate? | Michael Antoniou

    14/09/2026 | 38 mins.
    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 Science
    Discover 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 Life
    The No.1 Sunday Times bestseller packed with evidence-based advice to improve your health.
    https://geni.us/DrKaranBook 
    📕 This Is Vital Information
    Order my new book covering everything you're too embarrassed to ask your doctor but really should.
    https://linktr.ee/ThisisVitalInformation 
    🤖 Dr Karan's Digital Twin
    Ask 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
More Health & Wellness podcasts
About Dr Karan Explores
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.
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