Karan Rajan is redefining how Americans and global audiences learn about health. As an NHS general surgeon, senior lecturer at the University of Sunderland, and social media sensation with over 11 million followers, Dr. Karan Rajan combines medical expertise with humor to debunk myths and share practical health advice. From his bestselling book This Book May Save Your Life to his 2025 UK tour and podcast The Referral, Karan is making science accessible and fun. For U.S. readers curious about health trends or seeking reliable wellness tips, here’s why Karan Rajan is a must-follow in 2025.
From Medical Student to Social Media Star
Karan Rajan’s journey began at Imperial College London, where he earned his MBBS in Medicine in 2014. Inspired by his mother, a doctor, Karan developed a passion for science at age 13, later pursuing a BSc in Hematology and a Master’s in Skincare. As a general surgeon in Hampshire, UK, he’s spent over a decade performing life-saving procedures like removing bowel cancers and gallbladders. But it’s his knack for education that’s made him a household name.
In 2012, while still a medical student, Karan started posting YouTube videos to help peers with practical skills like reading X-rays. By November 2019, he pivoted to TikTok, where his witty, myth-busting videos exploded during the COVID-19 lockdown. From debunking glove-wearing myths during the pandemic to explaining gut health, his content—blending education, entertainment, and dark humor—has amassed over 11 million followers across TikTok (@dr.karanr), Instagram (@drkaranrajan), YouTube, and Facebook by 2025.
Why Karan Rajan Resonates with U.S. Audiences
Karan Rajan’s appeal lies in his ability to make complex medical topics digestible for everyday Americans. His videos tackle relatable issues—like why you shouldn’t drink eight glasses of water daily or how the gut-brain connection affects mental health—delivered with a British wit that’s universally engaging. U.S. fans appreciate his no-nonsense approach, like when he explained COVID vaccine science on Reddit, converting an anti-vaxxer to get vaccinated.dailymail.co.uk
As a senior clinical lecturer, Karan teaches at the University of Sunderland and has spoken at prestigious venues like Oxford University and Uber, bringing his passion for health education to life. His media appearances on BBC Morning Live, Good Morning Britain, and coverage in U.S. outlets like the Washington Post and New York Post have cemented his credibility. He’s also worked with the UN, WHO, and British Red Cross, advocating for public health globally.drkaranrajan.compenguinrandomhouse.ca
2025 Highlights: Book, Podcast, and UK Tour
In 2025, Karan Rajan is busier than ever, captivating U.S. and global audiences with new projects:
This Book May Save Your Life
Published by Century, Karan’s 2023 book, This Book May Save Your Life, became a Sunday Times #1 bestseller. It offers practical health advice, from gut health to vision tips like the 20/20/20 rule (every 20 minutes, look 20 feet away for 20 seconds to reduce eye strain). U.S. readers love its science-backed insights and humorous tone, with chapters on diet, autoimmune diseases, and the gut-brain axis.zoe.comthebookseller.comlubimyczytac.pl
The Referral Podcast
Launched in 2023, The Referral with Dr Karan Rajan (available on Global Player) tackles topics like dieting myths and gut health. In 2025, episodes continue to draw U.S. listeners for their engaging, myth-busting content. A notable episode with Paul Chowdhry on The PudCast highlighted Karan’s knack for blending humor with science.open.spotify.com
First UK Tour
Karan’s 2025 UK tour, his first as “the go-to expert for a generation” (The Telegraph), features live talks on health and science. While U.S. fans can’t attend, his tour’s buzz on platforms like X (@drkaranrajan) has sparked calls for a stateside event. Register interest at drkaran.live for updates.drkaran.livetelegraph.co.uk
Tips to Stay Healthy with Karan’s Advice
Want to apply Karan Rajan’s wisdom in 2025? Here are quick tips for U.S. readers:
- Boost Gut Health: Eat fermented foods like yogurt or kimchi for probiotics, fiber, and protein, not just supplements.zoe.com
- Protect Your Eyes: Follow the 20/20/20 rule to ease screen-related eye strain, perfect for remote workers.lubimyczytac.pl
- Question Health Myths: Check Karan’s TikTok (@dr.karanr) or Instagram (@drkaranrajan) for science-backed advice before trying trendy diets or supplements.
- Stay Informed: Subscribe to his newsletter, The Weekly Dose, for health tips (drkaran.beehiiv.com).drkaran.beehiiv.com
Why Karan Rajan Matters in 2025
Karan Rajan’s blend of surgical expertise, humor, and social media savvy makes him a unique voice in health education. For Americans navigating a sea of online misinformation, his videos and book offer a reliable lifeline. His work with the NHS, UN, and WHO underscores his commitment to public health, while his 2025 projects keep him relevant and engaging. Whether you’re curious about IBS or want to live healthier, Karan’s content is a must for U.S. audiences.
Conclusion: Join the Karan Rajan Health Revolution
Karan Rajan is more than an NHS surgeon—he’s a global health educator transforming how Americans approach wellness in 2025. From his bestselling book to his podcast and UK tour, he’s making science fun and accessible. Follow him on TikTok (@dr.karanr) or grab This Book May Save Your Life to stay informed and entertained. What’s your favorite Karan Rajan health tip? Share in the comments and subscribe for more celebrity and wellness news!
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