Is Isometric Training “Worth It,” New Research on *10 Minutes* of Exercise Per Day, NATURAL Alternatives to Metformin & More, Solosode & Q&As — 498

Full Show Notes: bengreenfieldlife.com/498 In this solosode I kick off by talking about whether isometric training is worth your time, covering both my own fitness habits and the newest research, particularly for runners and joint health. I also unpack a buzzworthy study on how just 10 minutes of vigorous exercise daily can be a powerful longevity booster compared to longer, lighter workouts. I share why I no longer personally use metformin, and instead, offer my favorite natural alternatives for better blood sugar control—like berberine, fiber, cinnamon, and simple routines like salads and walks. Plus, I get into brain health, explaining the roles of ketones, methylene blue, and near-infrared light for cognitive performance and protecting against issues like Alzheimer’s. At the end, I answer listener questions on optimizing DHT levels, natural insulin-sensitizers, and keeping your hair healthy even if you’re on testosterone. If you’re interested in practical strategies and learning what’s currently working in my own routine, you’ll enjoy this episode. Episode Sponsors: Hiya: Give your kids the full-body nourishment they need to grow into healthy adults. I’ve secured a special deal with Hiya on their best-selling children's vitamin—get 50% off your first order today! To claim this deal, you must go to hiyahealth.com/BEN (it is not available on their regular website). BASED Bodyworks: BASED Bodyworks is a clean, plant-based men's grooming brand offering simple, high-performance essentials from shampoo and skincare to styling, formulated without harsh sulfates or hormone-disrupting chemicals, so you can look and feel your best without compromising your health. Visit basedbodyworks.com and use code BOUNDLESSLIFE for 20% off. Manukora: You haven’t tasted or seen honey like this before - so indulge and try some honey with superpowers from Manukora. If you head to manukora.com/ben or use code BEN, you’ll automatically get $25 off your Starter Kit. Apollo: Apollo is a safe and non-invasive wearable that actively improves your sleep. Head over to apolloneuro.com/bengreenfield and use code BENGREENFIELD for $90 off.See omnystudio.com/listener for privacy information.

Full Show Notes:  bengreenfieldlife.com/younggoose2026 In this episode, I’m joined by Amitay Eshel—the “engineer of beauty”—as we unlock the science behind glowing, healthy skin. We cover breakthrough topics like how your skin produces real light, how mitochondrial health impacts skin radiance, and the secrets to reversing aging using topical methylene blue (without staining!), NAD boosters, and platelet-derived exosomes. Learn my three-step protocol to support skin vitality: boosting mitochondrial function, using powerful stimuli like red light therapy and enzymatic scrubs, and guiding repair with advanced biologics. Plus, discover real solutions for bags under the eyes, cellulite, wrinkles, and scars. If you’re ready to biohack your skincare routine and elevate your confidence, dive in! For show notes, product links, and more, visit BenGreenfieldLife.com. Subscribe for potent tips and insights to help you look and feel your best! Amitay Eshel is Co-Founder of Young Goose and host of the Biohacking Beauty podcast. He helped pioneer at-home red light therapy and brought topical NAD+ precursors, spermidine, methylene blue, quantified exosomes, and DNA repair enzymes into consumer skin science. Go to: Young Goose and use code BEN10 to save 10% Episode Sponsors: Quantum Upgrade: Recent research has revealed that the Quantum Upgrade was able to increase ATP production by a jaw-dropping 20–25% in human cells. Unlock a 15-day free trial with the code BEN15 at quantumupgrade.io. Timeline: Give your cells new life with high-performance products powered by Mitopure, Timeline's powerful ingredient that unlocks a precise dose of the rare Urolithin A molecule and promotes healthy aging. Go to timeline.com/BEN for up to 39% off your Mitopure Gummies. Our Place: Upgrade to Our Place today and say goodbye to forever chemicals in your kitchen. Go to fromourplace.com/ben and enter my code BEN at checkout to receive 10% off sitewide. Sunlighten: Sunlighten's patented infrared sauna technology delivers the highest quality near, mid, and far infrared wavelengths to reduce inflammation, boost mitochondrial function, enhance detox pathways, and optimize recovery—backed by 25+ years of clinically proven, non-toxic innovation. Save up to $1,400 at get.sunlighten.com/ben with code BEN.  See omnystudio.com/listener for privacy information.

Being Boundless vs. Being “Broken” Why you should accept that you are broken and how that changes everything about the way you pursue health. Episode Summary In this episode, you learn about my lifelong obsession with perfection nearly ruined my ability to enjoy anything—sports, relationships, and even the pursuit of health itself. From golden child syndrome to slowly dropping out of sports I couldn't podium in, to the pain of losing my father, I lay it all out. This episode explains why none of the biohacking matters if you can't first accept that you're broken and find happiness in the journey anyway. Question of the Day 🗣️ Where in your life has the pursuit of perfection quietly stolen your joy, and what would it look like to let that go? Key Takeaways My identity was built on perfection from a young age—good grades, sports success, bodybuilding by 14—and anything that fell short felt like a threat to who I was. That obsession drove me to quit tennis, triathlons, and obstacle course racing the moment I couldn't finish on top. The hardest truth: my demands for perfection strained my relationship with my dad, and when he died of cancer, I felt like I'd failed my final attempt to "fix" him. We're all broken—our bodies and brains break down—and no amount of biohacking changes that. It's not until we stop trying to be perfect that we can actually savor the journey of becoming the best version of our broken selves. Timestamped Outline ⏱️ 00:00 – Introduction: Weekly newsletter podcast & how to subscribe  00:25 – Growing up as the "perfect kid"—good grades, sports, success at everything  01:08 – The obsession takes hold: no blemishes, no imperfections, no deformities allowed  01:25 – Bodybuilding at 14, running straight up mountains before dinner  01:50 – Closed loops, zero inbox, no red badges—or I can't sleep  02:13 – How perfection fueled my pursuit of extreme fitness and biohacking  02:45 – The word "boundless" and what it really meant to me: the opposite of broken  03:15 – Aging and the slow retreat from anything I might fail at 03:35 – Quitting tennis, triathlons, obstacle course racing—if I can't podium, I'm out  04:11 – My relationship with my dad and what my demands for perfection cost us  04:44 – Losing him to cancer and feeling like I failed to save him  05:10 – The truth: we're all broken—body, brain, family, everything  05:34 – What the Bible says about our fleeting, temporary nature  05:56 – Accepting brokenness as a path to humility, empathy, and glimpsing the eternal  06:20 – True boundlessness comes from love for God and love for others—not from optimization  06:45 – Running the marathon to savor the adventure, not to win  07:00 – Playing the instrument to appreciate the chords, not to perform for thousands  07:15 – Caring for the body to live with courage and adventure—not to be forever young on social media  07:29 – It's not until we accept we're broken that we find happiness in the pursuit  07:45 – Closing: I'd love to hear your thoughts—leave your comments and feedback Links & Resources 🔗 The Ancestral Mismatch Series (Parts 1–4) Are We Just Modern Zoo Animals? The Ancestral Mismatch (Part 1) Are We Just Modern Zoo Animals? The Ancestral Mismatch (Part 2) Are We Just Modern Zoo Animals? The Ancestral Mismatch (Part 3) Are We Just Modern Zoo Animals? The Ancestral Mismatch (Part 4) My book "Boundless."  Subscribe to My Newsletter → https://bengreenfieldlife.com/newsletter Connect & CTA 🎯 👉 This one's personal. I'd love to hear if any of it resonates—leave your comments and feedback directly on the post: bengreenfieldlife.com/article/newsletter-10/. 📩 Want these insights delivered to your inbox every week? Subscribe at bengreenfieldlife.com/newsletter.See omnystudio.com/listener for privacy information.

Full Show Notes: BenGreenfieldLife.com/supplementsdebate Are supplements truly enhancing your health, or are they just hijacking it? In this episode, I bring together two leaders in the health and wellness space—Dr. Jeffrey Bland, known as the founder of functional medicine, and Robyn Openshaw, nutrition researcher and author of “Take Daily: How Supplements Hijack Your Health”—for an honest and eye-opening debate. We dive deep into controversial topics like the real story behind vitamin C and D supplements, why fish oil and protein powders might contain more than you bargained for, and how industrial processing could affect the purity of your favorite health boosters. If you’ve ever wondered whether your supplement stack is really serving you or possibly doing more harm than good, this episode is a must-listen. Join me as we explore practical tips for smarter, safer health choices. Episode Sponsors:  Truvaga: Balance your nervous system naturally with Truvaga's vagus nerve stimulator. Visit Truvaga.com/Greenfield and use code GREENFIELD30 to save $30 off any Truvaga device. Calm your mind, focus better, and recover faster in just two minutes. LMNT: Everyone needs electrolytes, especially those on low-carb diets, who practice intermittent or extended fasting, are physically active, or sweat a lot. Go to DrinkLMNT.com/BenGreenfield to get a free sample pack with your purchase! Fatty15: Fatty15 is on a mission to optimize your C15:0 levels and help you live healthier, longer. You can get an additional 15% off their 90-day subscription Starter Kit by going to fatty15.com/BEN and using code BEN at checkout. Troscriptions: Explore Troscriptions' revolutionary buccal troche delivery system that bypasses digestion to deliver pharmaceutical-grade, physician-formulated health optimization compounds directly through your cheek mucosa for faster onset and higher bioavailability than traditional supplements. Discover a completely new way to optimize your health at troscriptions.com/BEN or enter BEN at checkout for 10% off your first order. Young Goose: To experience the transformative power of Young Goose's cutting-edge products, visit younggoose.com and use code BEN10 at checkout to enjoy a 10% discount on your first order.See omnystudio.com/listener for privacy information.

Full Show Notes: bengreenfieldlife.com/ohmpodcast In this episode, I welcome back my former podcast sidekick, Dr. Jay Wiles—a leading performance psychologist and expert in nervous system optimization. Together, we dive deep into the science of resonance breathing, unpacking how this surprisingly simple practice can dramatically improve your heart rate variability, stress resilience, emotional well-being, and sleep quality.  We also get hands-on with the cutting-edge Ohm lamp, an innovative technology Jay helped develop that personalizes resonance breathing sessions using high-fidelity HRV data gathered right from your palm. Whether you're an elite athlete looking for a mental edge or just hoping to enhance your day-to-day health, this conversation is packed with actionable tips, real-world anecdotes, and a peek into the future of nervous system biohacking.  Dr. Jay Wiles - who you may remember if you're a long time podcast listener as my witty sidekick on old Ben Greenfield Life podcast episodes - is a performance psychologist and psychophysiology expert specializing in nervous system optimization, recovery, and human performance. He serves as Chief Health and Performance Officer at Ohm Health, where he leads the science and development of biofeedback-driven tools designed to train stress resilience, improve sleep, and enhance cognitive performance through evidence-based autonomic nervous system interventions.  Ohm Health is a nervous system resiliency and training company focused on improving stress resilience, recovery, sleep, and cognitive performance through evidence-based psychophysiology.  Pre-order and use code BEN for 10% off at Ohm Health Episode Sponsors: BIOptimizers MassZymes: MassZymes is a powerful, best-in-class enzyme supplement that improves digestion, reduces gas and bloating, and provides relief from constipation. Go to bioptimizers.com/ben and use code ben15 for 15% off your order. Organifi Shilajit Gummies: Harness the ancient power of pure Himalayan Shilajit anytime you want with these convenient and tasty gummies. Get them now for 20% off at organifi.com/Ben. Just Thrive: Just Thrive Probiotic is the only probiotic clinically proven to arrive 100% alive in your gut, wrestling in less bloat, better energy, and even clear skin. Digestive Bitters packs 12 science-backed herbs in one tasteless capsule that jumpstarts your digestion and supports GLP-1 production so cravings don’t control you. Visit justthrivehealth.com/BEN and save 20% with promo code BEN. See the difference for yourself or get a full product refund, no questions asked. BON CHARGE: BON CHARGE is a holistic wellness brand with a wide range of products that naturally address the issues of modern life. Their products can help you sleep better, perform better, recover faster, balance hormones, reduce inflammation, and so much more. Go to boncharge.com/GREENFIELD and use coupon code GREENFIELD to save 15%.See omnystudio.com/listener for privacy information.

A morning-to-bedtime blueprint for living more like your ancestors without a hyperbaric chamber, a hippie grocery bill, or a single scoop of overpriced supplement powder. Episode Summary In this final part of my 4-part “Ancestral Mismatch” series, I walk you through a complete sample day that ties together everything we've covered—hormesis, environment, and nutrition—into one practical, affordable routine.  From throwing open your curtains at sunrise to donning a $20 red light headlamp at bedtime, I show you exactly how simple (and cheap) it is to align your modern life with your ancestral biology. No hyperbaric chambers, no organic coffee enemas, no umbilical cord stem cell infusions. Just the basics done right. For your convenience, here are parts 1–3 of this series on fighting the “ancestral mismatch” and the uphill battle against living in a toxic, modern, industrialized world: Are We Just Modern Zoo Animals? The Ancestral Mismatch (Part 1) Are We Just Modern Zoo Animals? The Ancestral Mismatch (Part 2) Are We Just Modern Zoo Animals? The Ancestral Mismatch (Part 3) Question of the Day 🗣️ Looking at this sample day, which piece are you already doing—and which one are you most likely to try first this week? Key Takeaways A fully ancestral-aligned day doesn't require expensive biohacking equipment—it's built on natural light, filtered water, movement, whole food, and intentional rest. My morning routine is simple: sunlight, journaling or prayer, filtered water, 20 minutes of light movement and stretching outdoors, followed by a cold shower. "Movement snacks" throughout your workday—jumping jacks, push-ups, air squats every 45 minutes—replace the need for a long gym session. A whole roast chicken is a life cheat code: 5 minutes to prep, feeds you for days, and costs a fraction of eating out—I'll link my wife Jessa's easy recipe. This full day weaves together every principle from the series: spiritual habits, thermal stress, nature exposure, wholesome nutrition, hormesis, and circadian rhythm alignment—all on a budget. Timestamped Outline ⏱️ 00:00 – Introduction: Weekly newsletter podcast & how to subscribe 00:25 – Welcome to part 4 of 4 in the Ancestral Mismatch series 00:56 – What an affordable, practical day looks like (my joke equipment list: hyperbaric chamber, red light bed, coffee enemas) 01:15 – Morning: Throw open the curtains, journal or pray, drink filtered water 01:30 – 20 minutes of stretching, breathing, and light calisthenics outdoors  01:42 – What I do: Daily Audio Bible while moving—not an official workout, just a check-in with the body  01:55 – Quick cold shower for thermal stress  02:00 – Breakfast options: pastured eggs with bacon or avocado, oatmeal with honey and walnuts, or a smoothie—at least 12 hours after dinner  02:38 – At work or school: Walk everywhere, movement snacks every 45 minutes, phone on airplane mode  02:55 – Lunch: Fresh greens with olive oil topped with leftover meat or a tin of sardines (breath mints optional)  03:10 – Afternoon workout: 30 minutes of primal movements—press, pull, squat, hinge, lunge, twist  03:23 – Optional sauna or cold shower—some people alternate workout days and recovery days  03:45 – Dinner: Herb-rubbed whole roast chicken with seasoned carrots, cauliflower, and a sweet potato  03:57 – Why I think piecing apart a chicken is a critical life skill  04:30 – Dessert: Yogurt with dark chocolate chunks and frozen blueberries—no Ben & Jerry's required  04:40 – Post-dinner: 10–15 minute walk with an audiobook or podcast for blood glucose stabilization  04:54 – Bedtime: Swap fluorescent lights for an inexpensive red light headlamp from Amazon  05:20 – Full day recap: Spiritual habits, movement, thermal stress, nature, nutrition, hormesis—none of it expensive or complicated  05:40 – I hear your questions already ("I'm a woman—should I fast 12 hours?" "What if I'm allergic to chicken?")  05:53 – Coming next: How to discover happiness and fulfillment during the pursuit of health  Links & Resources 🔗 Parts 1–3 of the Ancestral Mismatch Series  Are We Just Modern Zoo Animals? The Ancestral Mismatch (Part 1) Are We Just Modern Zoo Animals? The Ancestral Mismatch (Part 2) Are We Just Modern Zoo Animals? The Ancestral Mismatch (Part 3) Jessa Greenfield's Easy Roast Chicken Recipe  Connect & CTA 🎯 👉 Have questions about building your own ancestral day? Leave your comments and feedback directly on the post. 📩 Want these insights delivered to your inbox every week?  Subscribe at https://bengreenfieldlife.com/newsletter.See omnystudio.com/listener for privacy information.

Full Show Notes: bengreenfieldlife.com/hungercode On this episode, I got to geek out with Dr. Jason Fung and unravel why calorie counting alone doesn’t explain our weight struggles. Dr. Fung used jaw-dropping stats—like nearly identical calorie consumption between nations with wildly different obesity rates—to illustrate how hormones, digestion, and even the microbiome play a much bigger role than just numbers.  We also broke down the three types of hunger—homeostatic, hedonic, and conditioned—and explored how ultra-processed foods hijack our biology. Dr. Fung shared that ditching those foods is his top strategy for conquering hunger, while I revealed how staying busy and using GLP-1s can help curb appetite during fasting or travel.  Dr. Jason Fung is a physician (kidney specialist), researcher and New York Times best-selling author currently practicing in Toronto, Canada. trained in Los Angeles and Toronto and currently practices as a nephrologist (kidney specialist). His books, including The Obesity Code, The Complete Guide to Fasting, The Diabetes Code and The Cancer Code have challenged conventional thinking about these diseases, and introduces dietary strategies to manage them. Episode Sponsors: LVLUP Health: I trust and recommend LVLUP Health for your peptide needs as they third-party test every single batch of their peptides to ensure you’re getting exactly what you pay for and the results you’re after! Head over to lvluphealth.com/BGL and use code BEN15 for a special discount on their game-changing range of products. Truvaga: Balance your nervous system naturally with Truvaga's vagus nerve stimulator. Visit Truvaga.com/Greenfield and use code GREENFIELD30 to save $30 off any Truvaga device. Calm your mind, focus better, and recover faster in just two minutes. Quantum Upgrade: Recent research has revealed that the Quantum Upgrade was able to increase ATP production by a jaw-dropping 20–25% in human cells. Unlock a 15-day free trial with the code BEN15 at quantumupgrade.io. 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 chronic stress or supplementing with high-dose zinc. Try it at formulaiq.com and use code BEN for 10% off.See omnystudio.com/listener for privacy information.

Full Show Notes:  BenGreenfieldLife.com/sunlightenpodcast This episode is all about clearing up confusion and bringing practical advice to the world of sauna use. I brought on Connie Zack, who co-founded one of the most highly regarded infrared sauna companies, to help break down the research, technology, and best practices. We discussed questions like how hot a sauna needs to get, whether the latest gadgets and red lights are worthwhile, the real science behind detox and heat stress, and even tips for making sauna routines fit anyone’s lifestyle—whether you’re a hardcore athlete or just want to relax and recover.  Connie Zack is the co-founder of Sunlighten, the global leader in infrared sauna and light therapy and the creator of the full-spectrum, low EMF infrared sauna I use. Inspired by her brother's health transformation, she and her husband, Aaron, left successful pharmaceutical careers to revolutionize the industry with science-backed innovations.  Connie is a pioneer in infrared light technology, driving widespread education on its benefits through collaborative partnerships. A passionate advocate for holistic health, Connie integrates nutrition, exercise, mindfulness, and infrared therapy into her life. As a mother, wife, wellness enthusiast and entrepreneur, she brings light, hope and happiness to the world through her expertise in how infrared light and heat impacts healthy lifespan. Sunlighten Sauna - Save up to $1,600 on your purchase with code BEN Sunlighten mPulse Sauna Sunlighten Solo Sauna Sunlighten Amplify Sauna  Sunlighten Red Light Therapy Panel (with App) Episode Sponsors: Qualia: Support better aging and cellular support with Qualia NAD+ and boost brain health with Qualia Mind—two of my favorites! Visit qualialife.com/boundless and use code BOUNDLESS for 15% off your order. Manukora: You haven’t tasted or seen honey like this before - so indulge and try some honey with superpowers from Manukora. If you head to manukora.com/ben or use code BEN, you’ll automatically get $25 off your Starter Kit. 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 for the Ben Greenfield audience. Go to usejoymode.com/GREENFIELD or enter GREENFIELD at checkout for 20% off your first order. Aires: Protect your home, office, and body from EMF with some of the highest EMF-shielding technology ever created. Aires is offering a 30% discount to all Ben Greenfield Life listeners at airestech.com/ben by using code BEN30. Boundless Bar: If you’re ready to fuel workouts, sharpen your focus, and support whole-body vitality, grab your Boundless Bars now at boundlessbar.com —and save 10% when you sign up for a Boundless Bar subscription.See omnystudio.com/listener for privacy information.

Discover why cotton candy can beat a corn dog, how the perimeter-of-the-store hack simplifies everything, and what it really looks like to eat like your great-grandparents. Episode Summary In part 3 of the “Ancestral Mismatch” series, Ben Greenfield delivers three no-nonsense dietary strategies that anyone can implement without breaking the bank or setting foot in an overpriced health food store. You'll learn why fried seed oils are more damaging than sugar (and why Ben would choose cotton candy over a corn dog every time), how to avoid ultra-processed foods by shopping the perimeter of any grocery store, and why sourcing your food matters for your health, animal welfare, and the planet. Ben even drops his go-to travel grocery list that works at any supermarket on Earth. Question of the Day 🗣️ What's one ultra-processed food you know you should ditch but keep reaching for, and what whole-food swap could replace it? Key Takeaways - Rancid heated seed oils in fried foods are more damaging long-term than sugar—lipid oxidation products (LOPs) become the building blocks of your cells and contribute to chronic disease risk. - Ultra-processed foods (UPFs) are engineered to be addictive, stripped of nutrients, and loaded with additives, preservatives, and oxidized oils—shop the perimeter to avoid them. - You don't need an expensive health food store—Ben's entire travel grocery list (rotisserie chicken, berries, avocados, sardines, nuts, yogurt, dark chocolate) costs under $40 and lasts days. - Farmer's markets from May through October give you access to local, sustainably grown food—and many farmers will sell you a quarter or half cow and ship it in batches. - Skip the fluff labels ("natural," "farm fresh")—look for USDA Organic, Pasture-Raised, MSC Certified, and Certified Humane instead. Timestamped Outline ⏱️ 00:00 – Introduction: Weekly newsletter podcast & how to subscribe 00:25 – Welcome to part 3 of the Ancestral Mismatch series 00:44 – Three quick fuel strategies that won't break the bank 00:55 – Tip 1: Avoid heavily fried foods—the cotton candy vs. corn dog test 01:30 – Why Ben picks cotton candy 10 out of 10 times 02:01 – The science: Lipid oxidation products (LOPs) and chronic disease risk 02:15 – Tip 2: Avoid ultra-processed foods (UPFs) in shiny crinkly packaging 02:40 – What makes UPFs dangerous: addictive, nutrient-void, chemical-laden 03:04 – The perimeter hack: Shop where your great-grandparents would recognize the food 03:30 – Ben's travel grocery list for any supermarket on the planet 04:18 – The full list: chicken, berries, avocados, cucumbers, greens, sardines, nuts, yogurt, dark chocolate 04:47 – Sneaky hotel gym water bottle hack ("fitness through osmosis with reverse osmosis") 05:00 – Tip 3: Consider the source of your food 05:15 – Modern industrial farming, monocropping, and declining soil quality 05:30 – The biblical mandate for land stewardship 06:00 – Farmer's markets: local food access from May through October 06:20 – Buying in bulk: quarter cow, half cow, whole cow with storage and shipping 06:35 – Basic life skills: canning, fermenting, sprouting, bone broth, windowsill gardening 07:05 – Labels that matter vs. labels that don't: USDA Organic, Pasture-Raised, MSC Certified, Certified Humane 07:35 – Series recap: from hormesis to HVACs to hens 07:40 – Next up: Part 4—what a simple sample day looks like 07:47 – Closing: Leave your questions and feedback Links & Resources 🔗 Parts 1–2 of the Ancestral Mismatch Series → *(linked in video description)* Ben's Comprehensive Food Labeling Standards Article → bengreenfieldlife.com *(linked in video description)* Subscribe to Ben's Newsletter → https://bengreenfieldlife.com/newsletter Connect & CTA 🎯 👉 Have questions about simplifying your nutrition? Leave your comments and feedback directly on the post. 📩 Want these insights delivered to your inbox every week? Subscribe at bengreenfieldlife.com/newsletter Here we are: at number three of this four-part series on the ancestral mismatch. You can read, watch, or listen to parts one and two here: Are We Just *Modern Zoo Animals*? The Ancestral Mismatch (Part 1) Are We Just *Modern Zoo Animals*? The Ancestral Mismatch (Part 2) See omnystudio.com/listener for privacy information.

Full Show Notes: bengreenfieldlife.com/drandrew2 In this episode, Dr. Andrew Koutnik returns for part 2 of our deep dive into metabolism and nutrition. We explore why you need far fewer carbohydrates than you think—both during daily life and intense exercise—and how sustained blood glucose levels for brain energy metabolism matter more than muscle glycogen stores. Andrew breaks down the different types of exogenous ketones, debunks liver toxicity concerns, and shares groundbreaking research on ketones for sleep quality and sleep apnea treatment from his NASA astronaut studies. Dr. Andrew Koutnik is a research scientist whose career bridges cutting-edge science, elite performance, and personal experience living with type 1 diabetes for over 17 years. His work focuses on how nutrition, metabolism, and lifestyle can be leveraged to maximize human health, performance, and resilience across diverse conditions—from chronic disease to extreme environments. Episode Sponsors: ZBiotics Pre-Alcohol Probiotic: The world's first genetically engineered probiotic that helps break down the toxic byproduct of alcohol, Zbiotics Pre-Alcohol allows you to enjoy your night out and feel great the next day. Order with the confidence of a 100% money-back guarantee and 15% off your first order at zbiotics.com/BEN15. Young Goose: To experience the transformative power of Young Goose's cutting-edge products, visit younggoose.com and use code BEN10 at checkout to enjoy a 10% discount on your first order. Troscriptions: Explore Troscriptions' revolutionary buccal troche delivery system that bypasses digestion to deliver pharmaceutical-grade, physician-formulated health optimization compounds directly through your cheek mucosa for faster onset and higher bioavailability than traditional supplements. Discover a completely new way to optimize your health at troscriptions.com/BEN or enter BEN at checkout for 10% off your first order. 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 chronic stress or supplementing with high-dose zinc. Try it at formulaiq.com and use code BEN for 10% off.See omnystudio.com/listener for privacy information.