You're Eating More Protein Than You Need | Prof. Leigh Breen episode artwork

EPISODE · Aug 24, 2026 · 53 MIN

You're Eating More Protein Than You Need | Prof. Leigh Breen

from Dr Karan Explores · host OG Podcasts

Muscle gain is an essential part of living longer and healthier - but there’s a lot of conflicting advice online. So how do you make resistance training and protein intake easy?In this episode I speak to Leigh Breen, Professor of Translational Physiology, who breaks down the simple science of optimising muscle health - and explains how muscle affects the health of your whole body. Timestamps(0:00) Intro - What muscle really does for your health(2:32) What actually happens to your body after you exercise?(4:30) How muscle and exercise improves brain health(8:37) The gut-muscle axis(12:13) Why optimising for protein may be a mistake(14:24) How much protein do we really need?(17:25) Can too much protein cause gut problems?(19:18) How effective is collagen protein?(28:46) The role of protein in the GLP-1 economy(31:48) Why plant protein is just as good as animal protein(35:45) GLP-1 impacts on muscle loss(42:20) Weight independent benefits of weight loss drugs(45:22) How age affects muscle strength(48:08) Can you build back muscle after long periods of inactivity? 🦠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 

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You're Eating More Protein Than You Need | Prof. Leigh Breen

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