Ben Greenfield Fitness: Diet, Fat Loss And Performance

Why Comfort is Slowly Killing You—And the Ancient Mismatch Making You Sick How modern life has turned us into zoo animals—and the simple stress strategy our ancestors used to stay strong, lean, and disease-free. Over the past five weeks, I’ve given you my perspective on the biohacking and longevity scene. I’ve noted the emptiness and time-wasting that can result from the vain pursuit of immortality so often seen in the “advanced” health optimization world (if you missed any of my articles, you can read them here). Episode Summary In this episode, I dive into why chasing biohacking gadgets and anti-aging protocols misses the bigger picture: we're living in an environment our biology was never designed for. I'll reveal the concept of "ancestral mismatch"—how our caveman bodies struggle in our temperature-controlled, food-abundant, movement-starved modern world—and show you how strategic doses of discomfort (hormetic stress) can reverse chronic disease. This isn't

Full Show Notes: bengreenfieldlife.com/lnkyal/ In this episode, you'll get to discover the fascinating realm of revolutionary peptides with two-time guest, Kyal Van Der Leest — a distinguished naturopath, nutritionist, supplement formulator, and the founder of LVLUP Health (use code BEN10 to save 10%). Discover how these powerful compounds can rapidly repair tissues, elevate your energy by boosting NAD levels, sharpen your mind, and even naturally enhance sexual health, offering alternatives to medications like Viagra. Kyal Van Der Leest is the founder, formulator, and face of LVLUP Health, an Australian-based supplement company. Under his guidance, LVLUP Health (use code BEN10 to save 10%) has created a diverse range of cutting-edge supplements utilizing incredibly powerful ingredients that you may not have heard of before. His formulations aim to simplify complex health protocols, reducing the need for multiple products by offering all-in-one solutions that make supplementation easy and effective. Epi

Full Show Notes: bengreenfieldlife.com/lnraw12 In this episode, I pull back the curtain on one of the single most powerful tools in my daily performance and recovery toolkit: Non-Sleep Deep Rest (NSDR) and its close cousin, Yoga Nidra. If you’ve ever found yourself burning the candle at both ends—waking up at 4:30 AM to fit in work, workouts, and family life—yet still trying to show up at your best, this is for you. I cover common myths around short sleep, explain why even “powered-through” fatigue adds up, and illustrate why most of us can’t cheat biology by running on six hours forever. You’ll get an honest play-by-play: what actually works for rebooting your system after a short night, the real science behind NSDR (think: brainwave states, nervous system regulation, and hormone balancing), and the exact guided meditations, apps, tech (like Sensate, or BrainTap), and routines to supercharge midday recovery. Episode Sponsors:  Organifi Shilajit Gummies: Harness

Full Show Notes: https://bengreenfieldlife.com/austinplasma/ In today's eye-opening episode with repeat guest, Dr. Khanh Nguyen, the founder of Austin Regenerative Therapy, you'll take a deep dive into the world of cutting-edge regenerative medicine. After spending three intense days undergoing her advanced protocols—from full-body regenerative therapies to some of the most boundary-pushing treatments I’ve ever experienced—you’re about to get an inside look at what’s really possible when modern science meets whole-body healing. Dr. Nguyen brings decades of internal medicine experience to the table, along with an inspiring personal story. As a refugee from Vietnam who arrived in the U.S. in 1982, her journey to becoming a leader in regenerative health is one of grit, compassion, and relentless curiosity. Episode Sponsors: JoyMode: Want to spice things up in the bedroom and boost your sexual performance? And do it naturally without nasty prescription drugs? We have a special offer

Full Show Notes: bengreenfieldlife.com/foreverstrong Dr. Gabrielle Lyon is an accomplished physician and the New York Times bestselling author of  FOREVER STRONG: A New, Science-Based Strategy for Aging Well and author of the just released , The Forever Strong PLAYBOOK. Her groundbreaking Muscle-Centric Medicine® approach places muscle at the center of disease prevention, metabolic health, and true vitality. And while she works with and trains elite athletes, military operatives, and public figures, she's equally focused on building strength and resilience at home, raising two young children while actively living her philosophy with her husband, a retired Navy SEAL. Episode Sponsors: Formula IQ: Recuperate IQ by Formula IQ is a comprehensive copper supplement designed to support mitochondrial energy, iron balance, and metabolic health by pairing bioavailable copper with essential cofactors your body needs for proper utilization, which is especially crucial if you've been under chr

Full Show Notes: bengreenfieldlife.com/496 In this episode, I share my personal experiences with advanced medical therapies in Austin and answer your questions about hydrogen for health, including the science behind it and practical ways to use it—from tablets to inhalation and baths. I also give advice on how to find a trustworthy hormone doctor, what credentials to look for, and recommend a few experts and clinics that I actually trust, based on my wife’s HRT journey. On the research front, I break down whether alcohol is really that harmful (it’s often overblown if you’re healthy and moderate) and highlight new findings that chronic cannabis use can mess with your memory and processing. I offer perspective on the melatonin-heart health headlines (don’t panic if you use it sensibly) and explain why microplastics fears might be overhyped. Episode Sponsors: Timeline: Give your cells new life with high-performance products powered by Mitopure, Timeline's powerful ingredient that u

Full Show Notes: https://bengreenfieldlife.com/lavalle/ In this episode, I sit down with the legendary clinical pharmacist Jim LaValle for a fascinating exploration of some of the most innovative approaches to health, performance, and longevity. We discuss everything from peptides and small molecules for mitochondrial and kidney support to the science behind improving VO2 max, brain function, sleep, and more. Jim LaValle unpacks his decades of experience, shares cutting-edge research on metabolic health, and explains the power of his Metabolic Code test—which I recently tried myself—for identifying and addressing the biggest bottlenecks in your health journey. Throughout our conversation, we swap stories about nutrition missteps (think gallons of dairy and endless antibiotics), dive into the practical application of peptides like KPV, BPC-157, and lorazotide for healing the gut, and examine trends Jim repeatedly sees even in high performers—like stress-driven hormone changes and sneaky signs

Full Show Notes: https://bengreenfieldlife.com/lnleland/ From the science behind sunlight, circadian lighting, and EMFs to practical tips on breathwork, cold exposure, and personalized nutrition, this wide-ranging conversation is packed with actionable insights. You'll learn why optimizing your external environment—light, air, water, and even mindset—is just as vital as what you eat, plus discover how environmental factors can impact everything from immune health to sleep quality. Whether you're a health enthusiast or just curious about leveling up your wellbeing, this episode delivers a blend of cutting-edge science and real-world strategies that will inspire you to rethink your daily routine. Dr. Leland Stillman is one interesting doctor and a man after my own heart - meaning he's interested in everything from how polar bears use cold thermogenesis and hibernation to enhance longevity to how your environment drastically shapes your health no matter how hard you exercise or how perfectly you

Full Show Notes: https://bengreenfieldlife.com/vaguspodcast/ On today's podcast, we dive deep into the fascinating connection between the vagus nerve and the immune system, exploring how these two critical systems communicate bidirectionally. We examine the role of immune cells throughout the body and discuss recent advances in bioelectronic medicine. This episode offers a fresh perspective on nervous system regulation and its impact on overall health, especially concerning the gut brain axis. Dr. Navaz Habib, aka "The Vagus Nerve Doc," is a best-selling author and host of ‘The Health Upgrade Podcast’. After using functional medicine to overcome his own health challenges, Dr. Habib built Health Upgraded, an online health program guiding parents and professionals to enhance their health by unlocking the healing power of the Vagus nerve to reduce the effects of stress and inflammation. JP Errico has spent more than two decades at the intersection of science, innovation, and entrepreneurship, with a

Full Show Notes: https://bengreenfieldlife.com/glucosesurprises Josh Clemente, Founder and CEO of Levels, is a systems engineer and metabolic health enthusiast. At SpaceX, he led a team to develop life support systems that in May of 2020 began sustaining astronauts on trips to and from the International Space Station aboard Crew Dragon: the first privately developed human-rated orbital spacecraft in history. Josh has spent the past decade obsessed with extending the lives of those he loves by breaking down barriers to better, more accurate, and more frequent measurement of human health. He enjoys the outdoors, functional fitness training, technology, coffee, and restoring motorcycles. Fun fact: Josh was homeschooled K–12 along with his 8 siblings by his legendary Mom.

Full Show Notes: https://bengreenfieldlife.com/article/newsletter-1 Writing a book is a lot like childbirth—exhausting, and not something you rush back into the moment it’s over. I’ve never given birth, but I have written several books—and after finishing Boundless, I wasn’t too eager to jump straight into that process again. Until recently. There are just too many health myths wasting your time, energy, and attention—especially around supplements, cold and heat exposure, sleep, fasting, seed oils, red meat, carbohydrates, psychedelics, biohacking, and the modern obsession with living forever. So over the coming months, I’m going to tackle these types of topics through a weekly newsletter, article, and video series, which will eventually be crafted into my next book. If something resonates, let me know. If something falls flat, tell me. And if there’s a topic that deserves a deeper dive, point me there. Head to https://bengreenfieldlife.com/article/newsletter-1/

Full Show Notes: https://bengreenfieldlife.com/dylan/ In today's episode, Dylan and I explore how your genetics, microbiome, lifestyle, and activity level all play a role in what works best for you. I share my thoughts on carbs (they’re not the enemy!), why the Mediterranean diet is often a solid fallback, and how to customize your approach—whether you’re training like an athlete or just trying to eat well on a budget. We also get real about fasting: I break down what works for high performers, how to balance longevity with peak performance, and what fasting windows actually make sense if you’re pushing your body hard. From there, we dissect the critical topic of heart health, talking through the difference between stable and unstable plaque, key diagnostic tools, and both natural and pharmaceutical strategies I’ve studied—and used personally—to keep my heart in top shape. Episode Sponsors: Our Place: Upgrade to Our Place today and say goodbye to forever chemical

Full Show Notes: https://bengreenfieldlife.com/lnraw06/ Welcome to RAW—my unfiltered solo podcast (hosted on LIFE Network), where you get the real, behind-the-scenes version of my life: the biohacking experiments I’m running on myself, the protocols I’m building and breaking, the tools and tech I’m stress-testing before anyone hears about them, the ideas in physiology, performance, and longevity I’m diving into, the beliefs I’m questioning, the routines I’m refining, and the unconventional stuff I’m actually doing day to day—no gloss, no script, just a direct line into what I’m thinking, testing, discovering, and living in real time. In this episode, we go deep into the “RAW” terrain of jaw mechanics—think controversial, awkward, and a tad nerdy, but game-changing for health. It all starts at a cocktail party when a Sherlock Holmes-style dentist spots red flags just by looking at his mouth. Cue a year-plus journey into bioesthe

Full Show Notes: https://bengreenfieldlife.com/noompodcast/ In this episode, Geoff Cook, CEO of Noom, talks about the science and practicalities of GLP-1 microdosing for weight loss and longevity. He breaks down what microdosing means, how Noom combines low-dose GLP-1 with behavior change programs to promote sustainable results, and the broader health benefits beyond just weight loss—such as improved metabolic markers and reduced inflammation. The conversation also covers safety, affordability, and Noom's new at-home blood testing for tracking progress. Geoff Cook is the CEO of Noom. He is also a serial entrepreneur and long-time public company CEO. He co-founded The Meet Group, a NASDAQ-listed social dating and live-streaming company connecting millions of active users globally. Geoff served as The Meet Group’s CEO from 2013 to 2023, leading it through its sale for $500 million in 2020. Noom Health partners with top health plans and employers to offer a suite of solutions, includin

Full Shownotes: https://bengreenfieldlife.com/podcast/495/ In this episode, I take you through a solo Q&A exploring topics like the best sauna practices, the real benefits of walking 7,000 steps a day, and the latest research on gut health treatments—including my personal experience starting a fecal microbiota transplant for chronic issues. How perceived food sensitivities can sometimes create real symptoms, clear up concerns about ketone supplements and liver health, and emphasize the importance of staying active throughout the day. I also mention my biohacking binder and let you know all the resources, studies, and tools I recommend will be linked in the show notes for anyone wanting more details. You’ll gain access to my complete binder of home biohacking tools and gadgets designed to support long-term health and performance (click here to start exploring). Episode Sponsors:  IM8: Ditch the cabinet full of supplements—IM8 packs 92 powerhouse ingredients into one delicious sc

Full Show Notes: https://bengreenfieldlife.com/lneniko In today's episode with Dr. Eniko Loud, Dr. Ghazal Sophia Taghavi, and Catherine Staffeldt, esteemed practitioners in the field of bioesthetic dentistry, you'll get to explore the ins and outs of holistic oral care, from proper brushing and flossing techniques to the integration of Ayurvedic practices in dental health. You'll also discover the importance of maintaining a balanced oral microbiome, the benefits of crunchy foods for jaw development, and the lesser-known impacts of dental practices on overall health, including sleep quality and systemic conditions. Plus, we'll delve into innovative treatments like tongue scraping, myofunctional therapy, and bioesthetic dentistry's role in restoring natural mouth function, and much more (like the innovative treatments and care I've been receiving from the Whole Health Dentistry Team out in Scottsdale, Arizona!). Episode Sponsors: Our Place: Upgrade to Our Place today and say goodbye to forever chemicals in you

Full Shownotes: BenGreenfieldLife.com/felicity  Today’s guest, Felicity Feline, is a certified health coach, yoga instructor, professional drummer, and former adult actress. Felicity opens up about her journey through—and eventually out of—the porn industry, sharing a raw and honest perspective on the emotional and physical challenges she faced along the way. She and dives deep into the impact of the adult industry both on performers and consumers, discussing issues like mental health, addiction, relationships, and societal shifts with OnlyFans and digital content. Felicity also reveals her personal health and biohacking strategies, especially how she’s balanced late nights as a musician in LA with her commitment to wellness, clean nutrition, and restorative practices. Her story is a powerful blend of cautionary insight and practical advice, highlighting the need for self-awareness, resilience, and open communication—whether it’s about relationships, personal choices,

Full Show Notes: BenGreenfieldLife.com/nicknorwitz In this episode with Dr. Nick Norwitz, you’ll get to discover how a Harvard-trained MD/PhD used a simple, eyebrow-raising experiment with Oreos to challenge conventional thinking on cholesterol, metabolism, and the stories told about health. We dive into his now-viral “Oreo experiment,” where adding Oreos to a ketogenic diet dropped his LDL cholesterol faster and more effectively than a high-intensity statin—an unexpected outcome that opens the door to deeper questions about lipid markers, risk factors, and how the body actually processes dietary fats. Nick Norwitz MD PhD is a researcher-educator whose mission is to “Make Metabolic Health Mainstream.” He graduated Valedictorian from Dartmouth College, majoring in Cell Biology and Biochemistry, before completing his PhD in Metabolism at the University of Oxford and his MD at Harvard Medical School. Nick has made a name for himself as a clinical research and metabolic health

Full Show notes: Bengreenfieldlife.com/sleepbetter Michael J. Breus, Ph.D., is a Clinical Psychologist and both a Diplomate of the American Board of Sleep Medicine and a Fellow of The American Academy of Sleep Medicine. He is one of only 168 psychologists in the world to have passed the Sleep Medical Specialty board without going to Medical School. Dr. Breus was recently named the Top Sleep Specialist in California by Reader’s Digest and one of the 10 most influential people in sleep. Dr. Breus is on the clinical advisory board of The Dr. Oz Show and on the show (40 times).   Dr Breus pens a monthly column in WebMD magazine, 'Sleep Matters,' and writes regularly for WebMD, The Huffington Post, and Psychology Today. He is also the author of The Sleep Doctor's Diet Plan and Beauty Sleep. Dr. Breus is the author of 4 books, with his newest was released in Dec of 2024 called Sleep, Drink, Breathe: Wellness is too complicated. This book gives an easy-to-follow 3-week program to teach ever

Full Shownotes: bengreenfieldlife.com/shiftwavepodcast On this episode of the Boundless Life podcast, I sit down with Mike North, a four-time Discovery Channel host, scientist, engineer, and CEO/co-founder of Shiftwave. Mike shares the remarkable story behind Shiftwave, a technology that uses targeted vibrations and sensory input to reset and regulate the nervous system, boost recovery, and unlock everything from deep relaxation to sharp focus. We dive into the science and engineering behind the device, tracing its origins in regenerative therapy and showing how custom protocols can optimize mind and body. Mike and I discuss the latest research and breakthroughs shaping this technology, and I share my own experiences using Shiftwave for better sleep, athletic recovery, and nervous system health. Mike North, PhD, is a scientist-engineer, entrepreneur, and pioneer in human optimization. Afour-time Discovery Channel host—including the hit series Outrageous Acts of Science—Northhas taught at UC Berkel