Boundless Life

Full show notes: https://bengreenfieldlife.com/504
In this solosode, you'll get the latest research on three questions I keep getting asked. First, seed oils: a brand-new randomized controlled trial put 52 adults on either a low or a typical Western intake of linoleic acid for 12 weeks, and the results are important less for what they found than for what they didn't. You'll hear why arachidonic acid didn't move, why EPA dropped instead, what that does to your inflammatory balance, which seed oils I still think are worth avoiding, and the one dietary adjustment that matters most if seed oils are part of your diet.
You'll also learn the surprisingly small amount of strength training that delivers the biggest longevity payoff, according to a 30-year study of more than 147,000 people, plus why pairing it with cardio is the single best exercise combination for blood pressure. I break down concurrent training, the interference effect between AMPK and mTOR, and when combining strength and cardio in one session helps you versus when it holds you back. Finally, I answer a listener question on peptides with six practical rules for stacking them safely, including which ones should never share a syringe, which ones cancel each other out at the receptor, and an honest look at how thin the human evidence really is behind the popular Wolverine stack.
Episode Sponsors:
Young Goose: Cutting-edge skincare that supports your skin's cellular health. Visit younggoose.com and use code BGF10 for 10% off.
ULTRA: A clean, nicotine-free, caffeine-free pouch that delivers smooth, sustained energy and focus using clinically backed nootropics and adaptogens, without the jitters or crash. Visit takeultra.com and use code BENGREENFIELD for 15% off.
ButcherBox: Premium, responsibly sourced protein delivered to your door, from 100% grass-fed beef to pasture-raised chicken and wild-caught seafood. New customers get a free protein for a year, plus $20 off the first box and free shipping, at ButcherBox.com/BEN.
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See omnystudio.com/listener for privacy information.

Full show notes: https://bengreenfieldlife.com/juliepodcast
In this episode with Julie Gibson Clark, I'm highlighting a throwback conversation because the gap it exposed has only gotten wider. There's a leaderboard called the Rejuvenation Olympics where people submit a blood test that measures how fast they're aging. When we recorded, Julie was a 55-year-old single mom in Phoenix making under $100,000 a year, sitting at number two in the world, aging at roughly two-thirds the speed of the calendar, and ahead of people like Bryan Johnson, who was spending $2 million a year chasing the same number. Her budget was $27 a month for a gym membership and $79 a month for a supplement. This February, Bryan Johnson opened an elite longevity program at $1 million a year with three spots, an interview process, and a requirement that you hire a dedicated assistant to keep up with the protocol.
You'll learn what Julie actually does: sleep protected like it's sacred, walking and rucking, strength training and VO2 max work, a pile of vegetables every day, one supplement, prayer, and stillness. Nothing that requires an executive assistant. You'll also hear her full health history, from heavy metal toxicity and chelation therapy to the genetics that shaped her approach, exactly what she eats and when, her supplement stack, her sleep and sauna routines, and why she refuses to name a target lifespan. Now 56 and teaching as founding faculty at a longevity academy, Julie is proof that the affordable end of longevity practice still gets you remarkably far.
Episode Sponsors:
Dr. Murray Natural Products – ThymoQuin®: A clinically researched black seed oil that supports healthy cortisol levels, resilience to everyday stress, and overall well-being, and the only one that meets U.S. Pharmacopeia guidelines. Visit doctormurray.com/ben and use code BEN25 for 25% off all Dr. Murray Natural Products.
ZBiotics Pre-Alcohol Probiotic: The world's first genetically engineered probiotic that helps break down the toxic byproduct of alcohol so you can enjoy your night out and feel great the next day. 100% money-back guarantee and 15% off your first order at zbiotics.com/BEN15.
Tiny Health: An at-home microbiome test that uses metagenomic sequencing to analyze your full gut ecosystem and give personalized, evidence-based diet, lifestyle, and supplement recommendations. Get $50 off your first kit at TinyHealth.com/BEN.
ULTRA: A clean, nicotine-free, caffeine-free pouch that delivers smooth, sustained energy and focus using clinically backed nootropics and adaptogens, without the jitters or crash. Visit takeultra.com and use code BENGREENFIELD for 15% off.
TruDiagnostic: An advanced at-home epigenetic test measuring over a million biomarkers for personalized, data-driven insights into your aging, energy, and overall health. Visit TruDiagnostic.com and use code BEN20 for 20% off.
See omnystudio.com/listener for privacy information.

Full show notes: https://bengreenfieldlife.com/dylan
In this episode with Dylan Gemelli, you'll hear one of the wildest origin stories in the health world. Dylan went from college athlete to Milan model to cocaine dealer to a 15-year prison sentence, and came out on the Fourth of July with two felonies, no job prospects, and a decision to start over. Within a year he had a million YouTube subscribers explaining compounds almost nobody was talking about yet, and today he hosts the number one health and fitness podcast in the country.
You'll also get the practical side: what SARMs really are and why he turned against steroids, what happened when a routine calcium score came back at 120 with an Lp(a) of 330, how he pushed back against the Mayo Clinic and got that number down into the 90s anyway, and what he learned about ejection fraction and chronic cardio the hard way. Dylan explains why he believes many biohackers are among the unhealthiest people out there, how stacking too many supplements and peptides creates redundancy that backfires, and which lesser-known peptides will rise in popularity.
Episode Sponsors:
LMNT: Everyone needs electrolytes, especially those on low-carb diets, who fast, are physically active, or sweat a lot. Go to DrinkLMNT.com/BenGreenfield to get a free sample pack with your purchase.
Dr. Murray Natural Products – ThymoQuin®: A clinically researched black seed oil that supports healthy cortisol levels, resilience to everyday stress, and overall well-being, and the only one that meets U.S. Pharmacopeia guidelines. Visit doctormurray.com/ben and use code BEN25 for 25% off all Dr. Murray Natural Products.
Manukora: You haven't tasted honey like this before, so try some honey with superpowers from Manukora. Head to manukora.com/ben or use code BEN to get $25 off your Starter Kit.
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See omnystudio.com/listener for privacy information.

Full show notes: https://bengreenfieldlife.com/blackseedoil
In this episode with Dr. Michael Murray, one of the most respected figures in natural medicine and the formulator of ThymoQuin®, you'll discover the science behind black seed oil: what thymoquinone actually is, why the full spectrum of the seed's compounds matters more than chasing a single active ingredient, and why it may be the most powerful adaptogen yet measured for lowering cortisol, dropping the stress hormone 22 to 44% in stressed people. You'll hear how it supports your gut by calming harmful bacteria without wiping out the good ones, the surprising dose range where it helps rather than harms your microbiome, and its effects on inflammation, metabolic health, blood pressure, blood sugar, sleep, and candida.
Dr. Murray also explains what makes his USP-monographed ThymoQuin different from ordinary black seed oil, why keeping free fatty acids low keeps it active, how to spot adulterated products, and the simple daily protocol he follows himself at 68. It's a grounded, myth-busting look at one of the oldest plant medicines on earth.
Episode Sponsors:
Just Thrive: The Gut Essentials Bundle pairs a probiotic clinically proven to arrive 100% alive in your gut with Digestive Bitters, 12 science-backed herbs that support digestion and GLP-1 production. Visit justthrivehealth.com/BEN and save 20% with code BEN, or get a full refund if you don't notice a difference.
Tecton Ketones: Bioidentical D-beta-hydroxybutyrate (BHB), the same ketone your body makes in ketosis, for clean cognitive support and stable energy with no conversion step. Visit tectonketones.com/ben and use code BEN for 16% off your first order.
Young Goose: Cutting-edge skincare that supports your skin's cellular health. Visit younggoose.com and use code BGF10 for 10% off.
Sunlighten: Patented infrared sauna technology delivering near-, mid-, and far-infrared wavelengths to reduce inflammation, boost mitochondrial function, and enhance detox and recovery. Save up to $1,600 at get.sunlighten.com/ben with code BEN.
Nuchido: Nuchido TIME+ is a science-backed supplement that optimizes your body's NAD metabolism across multiple pathways to support energy, cognition, recovery, and vitality. Visit BenGreenfieldLife.com/Nuchido and use code BEN20 to save 20%.
BON CHARGE: A holistic wellness brand whose products help you sleep better, recover faster, balance hormones, and reduce inflammation. Go to boncharge.com/GREENFIELD and use code GREENFIELD to save 15%.
See omnystudio.com/listener for privacy information.

Full show notes: https://bengreenfieldlife.com/sunpodcast
In this episode, journalist Rowan Jacobsen, author of In Defense of Sunlight, challenges everything you thought you knew about sun exposure. Modeled after Michael Pollan's In Defense of Food, his book argues we've been gaslit into a "zero-sun policy" the science does not actually support. You'll hear why melanoma is tied to intermittent sunburns rather than steady sun, the surprising 2024 research suggesting UVB may be protective while UVA is the real concern, and how office culture, window glass, and car windows may all be hidden pieces of the skin cancer puzzle.
You'll also learn why the vitamin D supplement story is more complicated than the pills suggest, how sunlight lowers blood pressure through nitric oxide and lifts your mood through natural opioids, where sunscreen genuinely helps and where hats and shirts do better, what to make of the new sunscreen ingredient Bemotrizinol, and how a simple 30-day reset of your light exposure could transform your sleep.
Episode Sponsors:
Dr. Murray Natural Products – ThymoQuin®: A clinically researched black seed oil that supports healthy cortisol levels and resilience to everyday stress, and the only one meeting U.S. Pharmacopeia guidelines. Visit doctormurray.com/ben and use code BEN25 for 25% off all Dr. Murray Natural Products.
Hiya: Give your kids the full-body nourishment they need in a best-selling children's vitamin. Get 50% off your first order at hiyahealth.com/BEN (it is not available on their regular website).
ButcherBox: Premium, responsibly sourced meat and seafood delivered to your door. New customers can choose a free protein for a year, plus $20 off the first box and free shipping, at ButcherBox.com/BEN.
TruDiagnostic: An advanced at-home epigenetic test measuring over a million biomarkers for personalized, data-driven insights into your aging, energy, and overall health. Visit TruDiagnostic.com and use code BEN20 for 20% off.
See omnystudio.com/listener for privacy information.