Boundless Life

Full show notes: BenGreenfieldLife.com/spysecrets
In this episode, I’m re-airing my conversation with former covert CIA officer Andrew Bustamante, founder of EverydaySpy. My friend Adam Wenguer introduced us by saying Andrew was great at marriage, homeschooling, and biohacking, and that he used to be a spy. You’ll hear what a polygraph really measures, how the CIA rebuilds officers after an operation, and the recovery tools he leans on, including L-theanine, CBD oil (use code BEN15 for 15% off), and watered-down electrolyte drinks (get a free sample pack with any drink mix order).
Andrew walks through his CIA morning routine, from a big glass of water and a Transcendental Meditation® mantra to berries instead of coffee, plus why the agency wants your heart rate up early and why he shuts off screens 90 minutes before bed. You’ll also hear about the two popular sleep aids I think cut into your REM sleep, the “perspective” exercise that changed his marriage, the “false dilemma” that heads off most bedtime fights with kids, and how I talk to my own sons about porn. We also cover why he journals in fragments and turns them into spreadsheet dashboards, and why switching up your workouts beats the same treadmill run every day. If you want to go deeper, you can find his new book, Outsmart Everyone, here.
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Full show notes: BenGreenfieldLife.com/healthyheart
In this episode, I’m re-airing my conversation with biochemist and engineer Patrick Theut about how he cleared the plaque from his own heart. Patrick was 48, winning 5Ks and playing ice hockey when he passed every test in a Mayo Clinic physical, then asked for one more scan they said he didn’t need. It came back with his left main artery lit up, and a cardiologist gave him four years to live. I went through something very similar myself, which is why this one stuck with me.
You’ll hear how gut bacteria help make vitamin K, how a common antibiotic can wipe them out, the health crash that sent his calcium score soaring, and the vanadium protocol he used to rebuild his pancreas, plus my company’s bitter melon blood sugar formula, Kion Lean. We get into the statin experiment he ran on himself, why vitamin K may help athletes train harder, what to know if you take blood thinners like warfarin, and his bare-minimum protocol, from magnesium (use code BEN15 for 15% off) and vitamin D to vitamin C.
We close with his take on statins, the heart marker he thinks matters next, his once-a-day eating, and the fermented Paleovalley beef sticks (use code PVFRIEND15 for 15% off) I’ve been working my way through. If you want to try Patrick’s vitamin K blend for yourself, you can find Koncentrated K here.
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Full show notes: BenGreenfieldLife.com/thymuspodcast
In this episode, I sit down with internal medicine physician Dr. Abud Bakri to talk about the thymus, the small gland on top of your heart that trains your immune system and starts shrinking as soon as you hit puberty. You’ll hear what speeds that shrinkage up, from birth control and testosterone therapy to chronic infections, stress and a leaky gut, why Korean eunuchs lived longer, and which blood markers, like the ratio of helper to killer T cells (CD4-to-CD8 ratio), give you a window into how your thymus is doing.
We get into thymulin and zinc, thymosin alpha-1, the Russian thymus extract Thymalin, and whether eating sweetbreads does anything at all. You’ll also hear my bedtime stack of epitalon and Pinealon, why Abud shines red light on his sternum, the overlooked link between the thymus and testosterone, why he takes 40 times my dose of body protection compound 157 (BPC-157) for injuries, and the red flags to watch for before you inject any peptide. We also cover natural killer cell treatments, the libido peptide being tested for weight loss, and why Abud thinks lactoferrin and colostrum are about to catch on.
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Full show notes: BenGreenfieldLife.com/lowcarbhighcarb
In this episode, I'm re-airing the first debate ever held on the Boundless Life podcast, with repeat guest Jay Feldman and Duke obesity medicine physician Dr. Eric Westman going head to head on whether your cells run better on carbohydrates or fat. The carbs-are-good, carbs-are-bad argument has only gotten louder, and this is still the best version of it I've heard.
You'll hear Jay's case that burning fat creates more oxidative stress and drives up stress hormones like glucagon and cortisol over time, and Eric's case from decades of reversing type 2 diabetes in his clinic. We get into the KetoSAge study that pulled keto-adapted women out of ketosis, the KETO Trial on keto dieters with very high LDL cholesterol, what a failing heart actually burns, and why keto adaptation can take months.
We close on the membrane pacemaker theory of aging, survival versus thriving, how I scale my own carbs to training and travel, and the three carb levels Eric lays out in End Your Carb Confusion. Whether you eat keto, high-carb, or somewhere in between, this debate will sharpen how you think about fuel.
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See omnystudio.com/listener for privacy information.

Full show notes: BenGreenfieldLife.com/thyroidhealth
In this episode, I'm re-airing one of the most comprehensive thyroid conversations I've ever had, with repeat guest Dr. Amie Hornaman. Six doctors told her she was normal while she gained 25 pounds in contest prep, and the seventh finally found the goiter.
You'll hear why thyroid stimulating hormone (TSH) on its own misses most of the picture, how reverse T3 can block your active thyroid hormone at the cell door, and why only 2% of hypothyroid patients do well on T4 alone. We get into T2, the thyroid hormone almost nobody talks about, and the Thyroid Fixxr® (use code BEN10 for 10% off) I took to Italy.
Dr. Amie also covers what years of low-carb eating does to T3, whether animal glandulars help or backfire, where iodine and selenium fit, the peptides she uses for Hashimoto's, and why testosterone matters so much for women. If you've been told your thyroid labs are normal and you still feel terrible, this one is for you.
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See omnystudio.com/listener for privacy information.