392: The Truth About Stem Cells, What To Do When You Can't Exercise, How Endurance Athletes Can Gain Muscle

In this episode with Dr. Joel “Gator” Warsh, you’ll discover a balanced perspective on vaccines, especially childhood vaccination, at a time when open, evidence-based dialogue is more important than ever. Drawing on his work as an integrative pediatrician, Dr. Warsh shares insights from his new book Between a Shot and a Hard Place, designed not to fuel division but to empower parents with knowledge, research, and practical tools for making informed decisions. You’ll explore the origins and evolution of vaccines, how schedules have changed, the strengths and flaws of safety testing, the nuanced risks and benefits of individual shots, and the importance of informed consent and medical freedom. By weaving together mainstream medicine and holistic practices, Dr. Warsh highlights where the science is strong, where questions remain, and why open conversation is the path toward clarity, confidence, and compassion—and if you’re interested in cutting through fear and hype to understand this complex topic, you won’t want to miss this episode. Dr. Joel "Gator" Warsh is the creator of the parenting Instagram account @drjoelgator and a board-certified pediatrician in Los Angeles specializing in wellness and integrative medicine. He is the author of multiple books, including his latest Between a Shot and a Hard Place: Tackling Difficult Vaccine Questions with Balance, Data, and Clarity. He grew up in Toronto, completed a master’s in epidemiology before earning his medical degree at Thomas Jefferson Medical College, and trained at Children’s Hospital of Los Angeles before founding Integrative Pediatrics. Dr. Warsh has published research in peer-reviewed journals on childhood injuries, obesity, and physical activity and has been featured in documentaries, summits, podcasts, and articles. Full show notes: bengreenfieldlife.com/hardplace Episode Sponsors: Ketone-IQ: Ketones are a uniquely powerful macronutrient that can cross the blood-brain barrier and increase brain energy and efficiency. With a daily dose of Ketone-IQ, you'll notice a radical boost in focus, endurance, and performance. Save 30% off your first subscription order of Ketone-IQ at Ketone.com/BENG. LeelaQ: Not only do LeelaQ’s products neutralize EMFs, increase ATP production, optimize HRV, and improve blood flow, but they've been third-party proven to do so in placebo-controlled double-blind studies. Visit leelaq.com and use code BEN10 for 10% off. 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. Just Thrive: For a limited time, you can save 20% off a 90-day bottle of Just Thrive Probiotic and Just Calm at justthrivehealth.com/ben with promo code: BEN. That’s like getting a month for FREE—take control today with Just Thrive!See omnystudio.com/listener for privacy information.

2 Loka 202559min

In this episode we dive into a hotly debated topic: should you eat meat or not? Ben is joined by two powerhouse guests with decades of experience in nutrition and health—Dr. Shawn Baker, best-selling author of The Carnivore Diet and leading carnivore advocate, and Joel Greene, creator of The Immunity Code and champion of dietary diversity. In this spirited debate, Dr. Baker highlights the benefits of a strict carnivore approach—meat, eggs, some dairy, and minimal plant foods—not only for himself but also for patients managing chronic health issues. He explains why animal-based nutrition can be so effective, breaks down the science of ketosis and gut health, and responds to concerns about long-term effects of fiber-free diets. Meanwhile, Joel Greene makes the case for dietary variety, drawing from evolutionary biology, clinical research, and personal experience. He explores the synergies of combining animal and plant foods, the role of fiber in gut and immune health, and the ancestral rhythms of scarcity and feasting. Joel argues that even small amounts of diverse foods can offset downsides of strict elimination diets. Dr. Baker is a physician, athlete, and author known for his straightforward, meat-focused approach to nutrition and his background in strength sports. Joel is the creator of Veep Nutrition, a program targeting gut communities to improve health, used by major employers and featured on the Dr. Phil Show. Author of The Immunity Code, Joel has devoted 50 years to health and anti-aging, pioneering practices like MCTs in the ’80s, keto in the ’90s, and AMPK activation by 2009. At 55, he remains a 100% natural athlete. Full show notes: https://bengreenfieldlife.com/diversityorcarnivore/ Episode Sponsors: Unmatched: Outlier by Unmatched is the world's first pre-workout featuring Paraxanthine instead of caffeine, delivering sustained energy and focus without the crash, plus premium ingredients like Cognizin for cognitive enhancement and NO3-T for incredible muscle pumps. Try it at unmatchedsupps.com/bengreenfield with special bulk discounts: 15% off one, 20% off two, or 25% off three. Xtendlife: Future-proof your health with Xtendlife’s Total Balance—100+ bio-active ingredients in a gender-specific formula designed for longevity and complete daily support. Use code BEN15 at www.xtend-life.com/ben for 15% off sitewide, plus free shipping. IM8: Ditch the cabinet full of supplements—IM8 packs 92 powerhouse ingredients into one delicious scoop for all-day energy, gut health, and cellular support. Go to IM8Health.com and use code BEN for an exclusive gift—fuel your body the right way! 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! Ketone-IQ: Ketone-IQ delivers science-backed performance fuel that increases power output by 19%, reduces fatigue by 10%, and naturally boosts EPO production for better oxygen delivery—trusted by elite athletes like Jon Jones and Olympic champions. Save 30% on your subscription plus get a free gift with your second shipment at Ketone.com/BENG.See omnystudio.com/listener for privacy information.

27 Syys 20251h 11min

In this episode, Emily Kaplan—co-founder of the Broken Science Initiative (BSI)—pulls back the curtain on systemic flaws undermining modern research. From manipulated data in high-impact journals to misuse of peer review and statistical tools like p-values, Emily reveals how corruption and misconduct shape medicine, including the infamous Alzheimer’s study that misled treatment development for years. She explains how BSI is working to restore trust in science through education, transparency, and a renewed focus on metabolic health. One key effort is MetFix, a grassroots initiative empowering communities to prevent and reverse chronic disease with nutrition and lifestyle interventions. Emily brings deep expertise in strategy and communication. As BSI’s CEO, she has built educational platforms, training programs, and professional networks that unite healthcare workers, patients, and scientists to confront irreproducibility, misconduct, and the true drivers of chronic illness. Through in-person and online events, BSI fosters communities committed to what’s working—and exposing what’s broken—in modern medicine. Her career spans journalism, entrepreneurship, and high-level advising. She co-founded The Kleio Group, guiding companies, celebrities, and politicians through strategic communication and crisis. She previously scaled Prep Cosmetics into a national chain, co-developed one of the first geolocation-based dating apps, and founded Prime Fitness and Nutrition, a women’s health concept with three locations. Emily has also hosted the Empowered Health Podcast, authored two books with HarperCollins Leadership, and contributed to ABC News, Boston Magazine, and major outlets. With degrees from Smith College and Northwestern, plus advanced studies at Harvard Law, Emily blends business acumen, investigative rigor, and a passion for performance. Her mission: challenge broken science and empower individuals to reclaim health. Full show notes: https://bengreenfieldlife.com/brokenscience/ Episode Sponsors: 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 the coupon code GREENFIELD to save 15%. Pique: Pique Teas are where plants and science intersect to produce teas and supplements of unrivaled efficacy, purity, and convenience. Go to Piquelife.com/Ben to get 20% off for life, plus a free starter kit with a rechargeable frother and glass beaker to elevate your ritual. Our Place: Upgrade to Our Place today and say goodbye to forever chemicals in your kitchen. Go to fromourplace.com and enter my code BEN at checkout to receive 10% off sitewide. 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. 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. 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.See omnystudio.com/listener for privacy information.

25 Syys 20251h

In this fascinating episode with Will Ahmed, founder of WHOOP (you can click here to get 1 month free on your membership), you’ll get to discover how his company is redefining health tracking through continuous 24/7 physiological monitoring, actionable coaching, and innovations like ECG readings and noninvasive blood pressure insights. Will Ahmed is the Founder and CEO of WHOOP, which has developed next-generation wearable technology for optimizing human performance and health. WHOOP members include professional athletes, Fortune 500 CEOs, fitness enthusiasts, military personnel, frontline workers, and a broad range of people looking to improve their performance. Ahmed is a member of the Board of Fellows of Harvard Medical School, where he provides counsel to the Dean and faculty on topics related to the strength and health of the institution. Ahmed was named to the 2021 Sports Business Journal 40 Under 40 list as well as 2020 Fortune 40 Under 40 Healthcare list and previously named to the Forbes 30 Under 30 and Boston Business Journal’s 40 Under 40. Ahmed founded WHOOP as a student at Harvard College, where he captained the Men’s Varsity Squash Team and graduated with an A.B. in government. WHOOP, the human performance company, offers a wearable health and fitness coach to help people achieve their goals. The WHOOP membership provides best-in-class wearable technology, actionable feedback, and recommendations across recovery, sleep, training, and health. WHOOP serves professional athletes, Fortune 500 CEOs, executives, fitness enthusiasts, military personnel, frontline workers, and anyone looking to improve their performance. Discount Codes: You can click here to get 1 month of WHOOP for free (membership only). Full show notes: https://bengreenfieldlife.com/whoop5/ 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. Ketone-IQ: Ketone-IQ delivers science-backed performance fuel that increases power output by 19%, reduces fatigue by 10%, and naturally boosts EPO production for better oxygen delivery—trusted by elite athletes like Jon Jones and Olympic champions. Save 30% on your subscription plus get a free gift with your second shipment at Ketone.com/BENG. 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. MASA Chips: Introducing the best guilt-free snack on the market: classic, seed oil free tortilla chips with only 3 natural ingredients. Go to masachips.com/greenfield and get 25% off your first order! Timeline Nutrition: 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 shop.timeline.com/BEN and use code BEN to get 20% off your order.See omnystudio.com/listener for privacy information.

20 Syys 202559min

In this episode with Dr. Bryce Appelbaum, you'll get to explore how hidden vision problems often masquerade as dyslexia, ADD, or ADHD—and how his vision therapy retrains the eye-brain connection to transform reading, focus, coordination, and even recovery from concussions. You'll also discover how his testing and training methods, from intensives to at-home programs, not only restore confidence in struggling readers like my wife Jessa but also sharpen performance for athletes and optimizers seeking a competitive edge. Dr. Bryce Appelbaum is a board-certified neuro-optometrist and recognized leader in vision therapy, specializing in retraining the eye-brain connection to unlock human potential. Through his practice, MyVisionFirst (you can use code BGL to save 10% off selected products), and his groundbreaking online program ScreenFit (you can use code BGL to save $200), he helps patients overcome post-concussion visual challenges, developmental delays tied to dyslexia and ADHD, and the visual stress created by modern screen habits. His work goes beyond restoring function—he equips individuals with the visual tools to read, learn, and focus with confidence. Dr. Appelbaum has also become a sought-after expert in performance vision training, working with hundreds of professional and Olympic athletes in the NFL, NBA, MLB, NHL, MLS, and more. From golfers, tennis players, and race car drivers to Olympic fencers, swimmers, and archers, he has helped transform raw talent into elite performance by enhancing reaction time, depth perception, and visual coordination. He even consults with teams on draft and free-agent decisions by evaluating athletes’ visual potential. Featured in The New York Post, The New York Times Magazine, and on CBS, NBC, and MindBodyGreen, Dr. Appelbaumwas named the 2022 Future of Health Award recipient at the Mindshare Leadership Summit. Tune in to discover how vision could be the missing link to unlocking your true potential—in learning, healing, and peak performance. Discount Codes: 👓 MyVisionFirst: Use code BGL for 10% OFF selected products. 🕶️ ScreenFit: Use code BGL for 💵 $200 OFF. Full show notes: bengreenfieldlife.com/fixmyvision Episode Sponsors: Just Thrive: For a limited time, you can save 20% off a 90 day bottle of Just Thrive Probiotic and Just Calm at justthrivehealth.com/ben with promo code: BEN. That’s like getting a month for FREE! Take control today with Just Thrive! CAROL Bike: The science is clear—CAROL Bike is your ticket to a healthier, more vibrant life. And for a limited time, you can get $100 off yours with the code BEN. Don't wait any longer, join over 25,000 riders and visit carolbike.com/ben today. Organifi: Get the restful sleep you need with the most soothing ingredients! Organifi is a delicious superfood tea with powerful superfoods and mushrooms to help you sleep and recover so you can wake up refreshed and energized. Go to Organifi.com/Ben for 20% off your order. Unmatched: Outlier by Unmatched is the world's first pre-workout featuring Paraxanthine instead of caffeine, delivering sustained energy and focus without the crash, plus premium ingredients like Cognizin for cognitive enhancement and NO3-T for incredible muscle pumps. Try it at unmatchedsupps.com/bengreenfield with special bulk discounts: 15% off one, 20% off two, or 25% off three. Our Place: Upgrade to Our Place today and say goodbye to forever chemicals in your kitchen. Go to fromourplace.com and enter my code BEN at checkout to receive 10% off sitewide. 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.See omnystudio.com/listener for privacy information.

18 Syys 20251h 6min

Tyler W. LeBaron, MSc, Ph.D., is the founder and executive director of the nonprofit Molecular Hydrogen Institute. With a background in biochemistry, physiology, and exercise science, he teaches exercise physiology and chemistry labs at Southern Utah University as an adjunct instructor. He interned at Nagoya University in Japan's Department of Neurogenetics, researching the molecular mechanisms of hydrogen gas on cell-signaling pathways. Tyler is a director of both the International Hydrogen Standards Association (IHSA) and the International Molecular Hydrogen Association (IMHA). He speaks at medical and academic conferences worldwide, collaborates with researchers globally, and works to advance the education and awareness of hydrogen as a therapeutic medical gas. Outside the lab, he trains in running and competes in arm wrestling. Alex Tarnava is a self-taught scientist, inventor, and author whose work bridges biomedical innovation, sovereign health, and philosophical disruption. He invented the world’s only open-cup molecular hydrogen tablet—a patented delivery system that has become the most studied and widely adopted form of hydrogen therapy, featured in over 21 published clinical trials. Alex has co-authored 17 peer-reviewed papers, with more in press and under review. He is also the co-inventor—alongside Tyler—of Inhale H₂, the first safe and effective hydrogen inhalation system. His leadership in the field led the Molecular Hydrogen Institute (MHI) to appoint him as the first chairman of its Research Committee. Full show notes: bengreenfieldlife.com/inhalehydrogen Episode Sponsors: LeelaQ: Not only do LeelaQ’s products neutralize EMFs, increase ATP production, optimize HRV, and improve blood flow, but they've been third-party proven to do so in placebo-controlled double-blind studies. Visit leelaq.com and use code BEN10 for 10% off. Gameday Men’s Health: Gameday Men's Health offers science-backed, physician-led men's health optimization with personalized protocols for testosterone, peptide therapy, ED treatment, and more—helping you perform at your best whether you're training hard or keeping up with life. Visit gamedaymenshealth.com/bengreenfield for a free testosterone test and consultation at a clinic near you. BEAM Minerals: If you want to up your mineral game, give BEAM Minerals a try. Go to beamminerals.com and use code BEN at checkout for 20% off your order. Thrive Market: Discover how Thrive Market delivers premium, clean-label groceries from top brands like Simple Mills and Primal Kitchen at up to 30% off retail prices, making healthy eating accessible without compromising your budget or values. Skip the junk without overspending—visit thrivemarket.com/ben for 30% off your first order plus a FREE $60 gift. 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 ben10 for 10% off your order. 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.

13 Syys 20251h

Jay Feldman is a health coach, independent health researcher, and the host of The Energy Balance Podcast. With degrees in neuroscience and exercise physiology from the University of Miami, he chose not to pursue medical school after realizing conventional medicine often fails to address the root causes of common health issues. After exploring both conventional and alternative paradigms and experimenting with diets from vegetarian to keto, Jay discovered that cellular energy is the foundation of health. He now uses a bioenergetic approach to help people worldwide overcome symptoms of low energy, including chronic hunger, poor sleep, and stubborn weight gain. Dr. Eric Westman is an Associate Professor of Medicine at Duke University. He is board-certified in Obesity Medicine and Internal Medicine, and founded the Duke Keto Medicine Clinic with Dr. William S. Yancy Jr. in 2006 after 8 years of clinical research regarding low-carbohydrate ketogenic diets. A past president and master fellow of the Obesity Medicine Association and fellow of The Obesity Society, Dr. Westman co-authored The New Atkins for a New You, Cholesterol Clarity, and Keto Clarity, and co-founded Adapt Your Life, a low-carb education and product company. Full show notes: bengreenfieldlife.com/lowhighcarb 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). Health Lighting: If you want to see and feel the difference better light can make in your life, give Chromalux® full spectrum light bulbs a try. Go to healthlighting.com and use code Ben10 at checkout to save 10% off your order. Organifi: Get the restful sleep you need with the most soothing ingredients! Organifi is a delicious superfood tea with powerful superfoods and mushrooms to help you sleep and recover so you can wake up refreshed and energized. Go to Organifi.com/Ben for 20% off your order. Prolon: Prolon's 5-Day Fasting Nutrition Program is scientifically tested and patented to nourish your body while keeping it in a physiological fasted state. Right now, you can save 15% on your 5-day nutrition program when you go to prolonlife.com/GREENFIELD. Pique: Pique Teas is where plants and science intersect to produce teas and supplements of unrivaled efficacy, purity, and convenience. Go to Piquelife.com/Ben to get 20% off for life, plus a free starter kit with a rechargeable frother and glass beaker to elevate your ritual. Seatopia: Seatopia delivers lab-tested, sushi-grade seafood that’s verified to be mercury-safe and free from detectable microplastics. Frozen at peak freshness, you'll receive the benefits of super nutrients like EPA, DHA, selenium, zinc, and vitamin D. Right now, you can save 15% on your first box and get a FREE 1:1 chef-led cooking class to kick-start your journey to cooking gourmet seafood at home by going to seatopia.fish/ben or by using code BEN at checkout.See omnystudio.com/listener for privacy information.

11 Syys 20251h 6min

In this episode with repeat guest Jordan Rubin, you’ll uncover a holistic plan for building strength, health, and longevity from one of the world’s most recognized natural health experts. Jordan shares how his family tradition of reciting Psalm 91 and insights from his new book, The Biblio Diet, reveal timeless biblical wisdom for vibrant living. He also highlights his groundbreaking research on “healing leaves” from fruit trees—their potential to fight cancer, balance blood sugar, reduce inflammation, and support longevity—and how to turn them into a daily healing tea. Jordan Rubin is the founder of Garden of Life, Beyond Organic, and Ancient Nutrition, and the New York Times bestselling author of The Maker’s Diet and over 30 other titles, including The Biblio Diet. An eco-entrepreneur and global lecturer, he has shared his message of natural health worldwide, formulated nearly 1,000 bestselling supplements and functional foods, and operates Regenerative Organic Certified farms in Missouri and Tennessee. Full show notes: https://bengreenfieldlife.com/biblio Episode Sponsors: MASA Chips: Introducing the best guilt-free snack on the market: classic, seed oil free tortilla chips with only 3 natural ingredients. Go to masachips.com/greenfield and get 25% off your first order! 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. Ketone-IQ: Ketone-IQ delivers science-backed performance fuel that increases power output by 19%, reduces fatigue by 10%, and naturally boosts EPO production for better oxygen delivery—trusted by elite athletes like Jon Jones and Olympic champions. Save 30% on your subscription plus get a free gift with your second shipment at Ketone.com/BENG. 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. 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. 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.See omnystudio.com/listener for privacy information.

6 Syys 20251h 6min