⚡ 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 explain why walking is the king of exercises.

🎧 Stay tuned to find out:

➡ Why gym-bro protein recommendations are overkill - and how much you really need

➡︎ The link between too much protein and chronic health conditions

➡︎ Why the science on collagen supplements is weak across the board

➡︎ A better way to improve your skin, hair, joint and bone health

➡︎  Why regular walking is better than short bouts of intense weight lifting or sprints

#DrKaran #MedicalScience #HealthEducation #HealthTips #protein #proteinmyths #collagen #walking #exercise

Don't miss an episode! Subscribe NOW: https://www.youtube.com/@DrKaran?sub_confirmation=1

📕 Chapters

(00:00) Intro

(00:50) Protein: myth vs reality

(13:17) Collagen: hype or health?

(24:12) Walking: The king of exercise

🔥 Get my free weekly newsletter filled with easy to action health tips, interesting facts and science to fill your curiosity: https://drkaran.beehiiv.com/subscribe

🔥 For more useful science for your everyday life, grab my best selling book “This Book May Save Your Life”: https://geni.us/DrKaranBook 

💊 Sign up to the wait list for my new fibre supplement LOAM - https://loamscience.com/password 

🎙️ An OG Podcasts production.

⚡ About Dr Karan:

Dr. Karan Rajan is a doctor, author, and educator 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. His content provides reliable, research-driven insights designed to inform and empower viewers to better understand their health.

📱 Follow Dr Karan:

Instagram: https://www.instagram.com/drkaranrajan/  

Facebook: https://www.facebook.com/DrKaranR/ 

TikTok: https://www.tiktok.com/@dr.karanr 

X: https://twitter.com/drkaranrajan 

Website: https://linktr.ee/ThisisVitalInformation

⚡ 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 creation, the benefits of fibre and why it’s the most underhyped nutrient right now, what I’m doing differently with my new fibre supplement LOAM, and how I see the future of microbiome research shaping up.

🎧 Stay tuned to find out:

➡ Why I began making videos on YouTube - and what it was like when I first went viral

➡︎ The challenges of moving from medicine to starting a supplement company

➡︎ My own struggles with low fibre intake and why I now eat 50g a day

➡︎ Why today’s fibre supplements are lacking - and what LOAM does to fix this

➡︎  How to make simple but tasty high-fibre snacks

📕 Chapters

(0:00) How stress affects the gut

(1:10) How did it all begin for Dr Karan?

(6:05) What did his parents think when he started on YouTube?

(8:22) Blowing up on TikTok

(10:05) Do patients ever recognise him?

(11:30) The hard moments Dr Karan has faced in medicine

(14:45) Why Dr Karan LOVES fibre 

(20:01) The origins of LOAM: Why Dr Karan’s making his own fibre supplement 

(27:51) How fibre changed Dr Karan’s health

(31:12) Why fibre is a silent killer

(34:20) DIY fibre dessert inspiration

(36:14) Making LOAM an enjoyable supplement experience

(45:51) Calorie content of LOAM - does it help with weight loss?

(47:37) Why Dr Karan’s dad threw a slipper at him

(48:55) The future of microbiome research

(52:12) Microplastics and the gut

(54:16) Who needs a fibre supplement?

(57:16) When is LOAM ready?

(1:00:19) What does success look like for Dr Karan?

📱 Connect with me:

TikTok: https://www.instagram.com/drkaranrajan

YouTube: https://www.youtube.com/@DrKaran 

Instagram: https://www.tiktok.com/@dr.karanr

🔥 Get my free weekly newsletter filled with easy to action health tips, interesting facts and science to fill your curiosity: https://drkaran.beehiiv.com/subscribe

🔥 For more useful science for your everyday life, grab my best selling book “This Book May Save Your Life”: https://geni.us/DrKaranBook 

💊 Sign up to the wait list for my new fibre supplement LOAM - https://loamscience.com/password 

🎙️ An OG Podcasts production.

⚡ Stress may be the cause of your gut problems. This might be emotional stress, or even physical stress - in fact, worrying about things can even cause problems for your tummy! So what can you do about it?

💬 Dr Emeran Mayer is gastroenterologist and brain-gut microbiome expert. He’s also Executive director of the UCLA Oppenheimer Center for the Neurobiology of Stress. In this episode he explores the science behind the stress/gut connection. And he digs into issues from chronic pain, to rising cases of SIBO.

🎧 Stay tuned to find out:

➡ How various forms of stress - and even the expectation of stress - impact your gut 

➡︎ How gut disorders can be linked to early life trauma

➡︎ The true extent to which gut bugs control how you behave

➡︎  How you can improve chronic pain symptoms with targeted gut action

➡︎ The real reason SIBO (small bacterial overgrowth) is on the rise

📕 Chapters

(0:00) How stress affects the gut

(2:03) The chronic pain-gut link

(5:00) How quickly can microbes influence the brain?

(7:12) Stress: Is the brain or gut more responsible?

(9:14) How worrying can cause gut problems

(11:57) The role of childhood and early life trauma on gut health

(15:16) Do tummy bugs control our behaviour?

(18:38) The importance of personal connection and sharing microbes 

(21:33) How to reduce chronic pain symptoms

(27:56) Improving brain health by eating more fibre

(31:58) SIBO - the new buzzword. Hype or health?

📱 Connect with me:

TikTok: https://www.instagram.com/drkaranrajan

YouTube: https://www.youtube.com/@DrKaran 

Instagram: https://www.tiktok.com/@dr.karanr

📱 Connect with Emeran

Instagram: https://www.instagram.com/emeranmayer/ 

Website: https://emeranmayer.com/ 

🔥 Get my free weekly newsletter filled with easy to action health tips, interesting facts and science to fill your curiosity: https://drkaran.beehiiv.com/subscribe

🔥 For more useful science for your everyday life, grab my best selling book “This Book May Save Your Life”: https://geni.us/DrKaranBook 

🎙️ An OG Podcasts production.

⚡ Are men’s health issues being ignored? With the rise of the “manosphere”, poor male role models and increasing focus on the harm men cause - one activist argues we’ve begun to see men as the enemy, and it’s costing us.

💬 George, known as TheTinMen online, is a men’s health activist. He tackles issues where he feels men are being let down by society - everything from domestic violence to suicide prevention. His view is that men’s physical and mental health is not being taken seriously - and it’s doing them a massive disservice.

🎧 Stay tuned to find out:

➡︎  Why being a man is the biggest predictor for early death

➡︎ Why the term manosphere has become “meaningless”

➡ Why the world is lacking good male role models - and where to actually find them

➡︎ How 91% of men who died of suicide already saught help first

➡︎ Why Adolescence did a bad job of portraying the manosphere

📕 Chapters

(0:00) Intro

(3:12) What is the manosphere?

(7:31) Did Netflix’s Adolescence get it right?

(9:46) Why the manosphere has exploded

(12:06) Why fathers are so important

(16:51) Are there any good male role models out there?

(24:43) The power dynamic between men and women

(27:40) Does men’s health get enough attention?

(35:51) Why suicide prevention isn’t working for men

(38:54) The issue with Movember - where is the money going?

(43:47) Male body image

(46:50) How female role models influence men

(51:36) Kids watch your every move

📱 Connect with me:

TikTok: https://www.instagram.com/drkaranrajan

YouTube: https://www.youtube.com/@DrKaran 

Instagram: https://www.tiktok.com/@dr.karanr

📱 Connect with TheTinMen:

Instagram: https://www.instagram.com/thetinmen/

YouTube: https://www.youtube.com/@thetinmenblog 

🔥 Get my free weekly newsletter filled with easy to action health tips, interesting facts and science to fill your curiosity: https://drkaran.beehiiv.com/subscribe

🔥 For more useful science for your everyday life, grab my best selling book “This Book May Save Your Life”: https://geni.us/DrKaranBook 

🎙️ An OG Podcasts production.

⚡ If you want a big, healthy and young brain - there is a simple solution that can add years to your life.

💬 Neuroscientist Dr Ben Rein explains why social connection, chatting to strangers and seeing your friends is essential for brain health - and can literally make it bigger. He also discusses the brain benefits of pets, the science of empathy and more.

🎧 Stay tuned to find out:

➡ How pets hijack our brain systems in the best possible way

➡︎ How an ‘epidemic of loneliness’ is fueling conditions like dementia and heart disease

➡︎ How online interactions and AI chatbots impact brain chemistry

➡︎  Where empathy comes from and how to get more of it

➡︎ The science of awe and whether free will exists

📕 Chapters

(0:00) Intro

(0:36) Why our brains need friends

(2:15) The neuroscience of empathy

(5:52) Are pets good for brain health?

(10:33) Do animals have empathy too?

(12:05) Are WE good for our pets brains?

(13:36) Why animals love music

(15:28) How ‘super-agers’ keep their brains healthy

(20:01) Do virtual chats also help brain health?

(22:44) How social connection reduces dementia risk

(26:27) What AI chatbots are doing to our brains

(30:33) The science of awe and wonder

(33:07) How to make your life feel longer

(36:44) Empathy and mirror neurons

(40:18) Does free will exist?

(46:22) How to become more empathetic

📱 Connect with me:

TikTok: https://www.instagram.com/drkaranrajan

YouTube: https://www.youtube.com/@DrKaran 

Instagram: https://www.tiktok.com/@dr.karanr

📱 Connect with Ben:

Instagram: https://www.instagram.com/dr.benrein/ 

YouTube: https://www.youtube.com/c/benrein 

Website: https://www.benrein.com/ 

🔥 Get my free weekly newsletter filled with easy to action health tips, interesting facts and science to fill your curiosity: https://drkaran.beehiiv.com/subscribe

🔥 For more useful science for your everyday life, grab my best selling book “This Book May Save Your Life”: https://geni.us/DrKaranBook 

🎙️ An OG Podcasts production.

⚡ ️Gut health is an absolute minefield. Trying to figure out what works best to protect your gut is becoming increasingly complex - but it doesn’t have to be. The science is pretty clear and in this episode we break down the simplest measures you can take for a healthy gut.

💬 Dr Emily Leeming is a gut health dietician and author of Genius Gut. And she’s currently running a very important trial at King’s College London - looking at the link between the gut microbiome and bowel cancer risk. 

🎧 Stay tuned to find out:

➡ Whether microbiome tests are worth your money (and what to do instead)

➡︎ How bowel cancer is on the rise in under 50s (and why fibre is the solution)

➡︎ Why you need to spend more time studying your poop

➡︎  Whether microplastics are really damaging your gut health

➡︎ Where gut health meets neuroscience

📕 Chapters

(0:00) Intro

(0:37) Best way to get on top of your gut health

(1:24) Why microbiome tests are a waste of money

(10:12) Emily’s KCL study on bowel cancer

(20:46) The effect of microplastics on gut health

(26:47) Gut factors that are out of your control

(32:21) Your gut health starts in your mouth

(35:36) Researching non-industralised microbiomes

(40:22) How your gut affects your brain

📱 Connect with me:

TikTok: https://www.instagram.com/drkaranrajan

YouTube: https://www.youtube.com/@DrKaran 

Instagram: https://www.tiktok.com/@dr.karanr

📱 Connect with Emily:

Instagram: https://www.instagram.com/dremilyleeming/ 

Website: https://www.emilyleeming.com/ 

🔥 Get my free weekly newsletter filled with easy to action health tips, interesting facts and science to fill your curiosity: https://drkaran.beehiiv.com/subscribe

🔥 For more useful science for your everyday life, grab my best selling book “This Book May Save Your Life”: https://geni.us/DrKaranBook 

🎙️ An OG Podcasts production.

⚡️Autism, ADHD and anxiety are on the rise in children - but there is a way to rewire our kids’ brains and even reverse symptoms of these conditions…if we get in early enough. But how?

💬 Trenna Sutcliffe is a developmental-behavioural pediatrician at Sutcliffe Clinic. She helps parents navigate neurodevelopmental conditions and build mentally resilient children. She says the work must start young - and shares key tools and techniques that parents can implement.

🎧 Stay tuned to find out:

➡ Why ADHD and autism is really on the rise - and how much of it is genetics

➡︎ The science of neuroplasticity and why the first 7 years of a child’s life are crucial

➡︎ Just how closely linked screentime is to worsening ADHD symptoms

➡︎  Why educational spaces simply don’t work for some children

➡︎ Why autism is regularly missed in girls

📕 Chapters

(3:15) Why are ADHD and autism on the rise?

(6:48) How much is genetically driven?

(9:31) How the environment influences brain health

(18:46) Diet & microbiome effects on neurodivergence

(22:46) How worried should we be about screentime?

(29:05) Why schools aren’t set up right

(34:34) What you should do for your kids in their first 7 years

(38:48) Why autism is often missed in girls

(42:03) Lower rates of autism in ethnic minorities

(43:41) Trenna’s top tips for raising healthy kids

📱 Connect with me:

TikTok: https://www.instagram.com/drkaranrajan

YouTube: https://www.youtube.com/@DrKaran 

Instagram: https://www.tiktok.com/@dr.karanr

📱 Connect with Trenna:

Website: https://www.sutcliffeclinic.com/trenna-sutcliffe 

LinkedIn: https://www.linkedin.com/in/trenna-sutcliffe-463001b2/ 

🔥 Get my free weekly newsletter filled with easy to action health tips, interesting facts and science to fill your curiosity: https://drkaran.beehiiv.com/subscribe

🔥 For more useful science for your everyday life, grab my best selling book “This Book May Save Your Life”: https://geni.us/DrKaranBook 

🎙️ An OG Podcasts production.

💬 Jens Walter is a gut health expert at APC Microbiome Ireland, one of the leading microbiome centres in the world - and helped develop the Non-industrialised Microbiome Restore (NiMe) diet.

⚡️In this episode, Jens and I discuss how our microbiomes have been shaped throughout human history - and the foods we can eat to make our healthy microbes flourish. 

🎧 Stay tuned to find out:

➡︎ Just how different our guts are from indigenous communities and our early ancestors

➡︎ What the NiMe diet is and how it can supercharge your gut health

➡︎ Why community and culture is just as important as food for gut health

➡︎ Why some of our gut microbes have gone extinct

➡︎ How pairing meat with the right kind of fibre can increase its benefits

📕 Chapters

(00:43) How industrialisation has changed our microbiome

(02:18) Do personalised diets work for gut health?

(05:52) Emerging gut microbe research

(07:27) How sharing microbes in communities improves gut health

(12:56) Combining the benefits of Western and indigenous lifestyles

(15:01) How different our guts are from ancient humans

(18:15) Can we regain extinct microbes?

(21:35) Exploring the Yanomami tribe

(24:11) The NiMe diet

(27:14) Should we cut out all dairy?

(30:01) Balance vs restriction

(32:23) Benefits of pairing fibre with meat

(35:27) Best resistant starches to eat

(38:36) Ancient vegetables: Are they better for us?

📱 Connect with me:

Instagram: https://www.instagram.com/drkaranrajan

YouTube: https://www.youtube.com/@DrKaran 

TikTok: https://www.tiktok.com/@dr.karanr

📱 Connect with Jens Walter:

LinkedIn: https://www.linkedin.com/in/jens-walter-b1a1127a/

🔥 Get my free weekly newsletter filled with easy to action health tips, interesting facts and science to fill your curiosity: https://drkaran.beehiiv.com/subscribe

🔥 For more useful science for your everyday life, grab my best selling book “This Book May Save Your Life”: https://geni.us/DrKaranBook 

🎙️ An OG Podcasts production.

💬 Dr Spencer Nadolsky is an obesity and lipid specialist, and an expert in GLP-1 care. He’s also the co-host of the Docs Who Lift podcast.

⚡️In this episode Spencer and I discuss emerging research around weight loss injections tirzepatide and semaglutide, known as Ozempic, Wegovy and Mounjaro - and discuss the proper use of these drugs.

🎧 Stay tuned to find out:

➡︎ Why old restrictions on weight loss drugs are no longer being enforced

➡ How a combo of GLP-1 and GIP may be even more revolutionary for weight loss

➡︎ Why most people have to take these drugs for life

➡︎ Why people get so angry when people lose weight on GLP-1s

➡︎  How GLP-1 drugs are going to make weight-loss surgery extinct

📕 Chapters

(0:41) The non-weight loss benefits from GLP-1 use

(4:55) Getting the dosage right

(7:24) Drugs of the future

(11:09) How to get started on a weight-loss injection

(16:38) Why restrictions on weight loss drugs are being lifted

(19:46) Why people get mad about GLP-1 use

(23:57) Do you have to take these drugs for life?

(27:55) Do fat cells have memory?

(29:25) What if you want to stop GLP-1 use?

(31:48) The mental health drawbacks of weight loss drugs

(35:44) Unique insights from Spencer’s time with patients

(38:47) Is excessive muscle loss really a big problem?

(42:46) Should everyone be taking GLP-1s?

(45:14) Will weight loss surgeries go extinct?

(49:11) GLP supplements are a scam

📱 Connect with me:

TikTok: https://www.instagram.com/drkaranrajan

YouTube: https://www.youtube.com/@DrKaran 

Instagram: https://www.tiktok.com/@dr.karanr

📱 Connect with Spencer:

Instagram: https://www.instagram.com/drnadolsky/ 

X: https://x.com/DrNadolsky  

🔥 Get my free weekly newsletter filled with easy to action health tips, interesting facts and science to fill your curiosity: https://drkaran.beehiiv.com/subscribe

🔥 For more useful science for your everyday life, grab my best selling book “This Book May Save Your Life”: https://geni.us/DrKaranBook 

🎙️ An OG Podcasts production.

💬 Ro Huntriss is a world-leading fertility expert, recently crowned ‘Best Fertility Dietitian’ by The European Fertility Society. She has extensive experience in women’s health and is also the author of Deliciously Healthy Fertility.

⚡️In this episode Ro and I discuss the incredible power we have to influence our own ability to conceive (for both women and men) and improve the health outcomes of our children - simply by focusing on the food we eat.

🎧 Stay tuned to find out:

➡ Fertility friendly foods - and what to avoid for better conception

➡︎ What DNA fragmentation has to do with male fertility and sperm quality

➡︎ About the rise of ‘Ozempic babies’ and how GLP-1 agonists impact fertility

➡︎  The evolving role of microbiome research in fertility

➡︎ Which supplements actually work

📕 Chapters

(0:41) Fertility award winner

(1:51) How men are involved in fertility

(4:44) Why is infertility so common?

(6:34) Fertility friendly foods

(8:18) Dietary reasons for low fertility

(10:09) Fertility and the microbiome

(18:14) Supplements for fertility

(24:14) Testing your fertility

(28:43) How your diet improves your child’s long-term health

(30:36) Advice for chronic conditions like endometriosis

(35:52) Ozempic babies

(40:29) Dr Karan’s Ozempic prediction

(42:38) What you should STOP doing for fertility

(45:24) Diet impact on pregnancy related complications

(47:00) Improving fertility can be simple

📱 Connect with me:

TikTok: https://www.instagram.com/drkaranrajan

YouTube: https://www.youtube.com/@DrKaran 

Instagram: https://www.tiktok.com/@dr.karanr

📱 Connect with Ro:

Instagram: https://www.instagram.com/fertility.dietitian.uk/

Website: https://dietitianro.co.uk/ 

🔥 Get my free weekly newsletter filled with easy to action health tips, interesting facts and science to fill your curiosity: https://drkaran.beehiiv.com/subscribe

🔥 For more useful science for your everyday life, grab my best selling book “This Book May Save Your Life”: https://geni.us/DrKaranBook 

🎙️ An OG Podcasts production.