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The Dr. K Show
The Dr. K Show
Author: Dr. Michael Karlfeldt
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© 2026 - Dr. Michael Karlfeldt - Karlfeldt Center
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Looking for a functional medicine podcast that actually explains how to fix your health?
The Dr. K Show with Dr. Michael Karlfeldt covers integrative medicine, functional medicine, biohacking, and longevity, with a focus on the root causes of chronic disease and practical strategies for optimizing energy, hormones, gut health, and cognitive performance.
With over 35 years of clinical experience, Dr. Karlfeldt interviews world-leading experts in metabolic health, detoxification, hormone balance, immune function, nervous system regulation, and chronic disease prevention. Each episode delivers science-backed, actionable insights by blending modern functional medicine with time-tested healing principles.
Whether you're struggling with fatigue, inflammation, hormonal imbalance, or simply want to perform at your best, this podcast gives you the tools to take control of your health and longevity.
The Dr. K Show with Dr. Michael Karlfeldt covers integrative medicine, functional medicine, biohacking, and longevity, with a focus on the root causes of chronic disease and practical strategies for optimizing energy, hormones, gut health, and cognitive performance.
With over 35 years of clinical experience, Dr. Karlfeldt interviews world-leading experts in metabolic health, detoxification, hormone balance, immune function, nervous system regulation, and chronic disease prevention. Each episode delivers science-backed, actionable insights by blending modern functional medicine with time-tested healing principles.
Whether you're struggling with fatigue, inflammation, hormonal imbalance, or simply want to perform at your best, this podcast gives you the tools to take control of your health and longevity.
92 Episodes
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Did today's psychedelic therapy boom start with a man who liked to make things up?On The Dr. K Show, Dr. K talks with John O'Connor, journalist and author of A Short, Strange Trip, about Terence McKenna and the 1971 magic mushroom and ayahuasca experiment in the Colombian Amazon that shaped how we think about psychedelics.O'Connor, who retraced the trip himself, explains what the McKenna brothers were really chasing and why he thinks psychedelics can help with PTSD and addiction without being a magic bullet. If you're curious about psychedelic therapy, or wary of the hype, start here.Key Takeaways:Terence McKenna's La Chorrera experiment and the psychedelic renaissancePsychedelic therapy for PTSD and addiction, and why it isn't a magic bulletMagic mushrooms, ayahuasca and grief: what the McKenna brothers were chasingAyahuasca, tobacco and coca: how Amazon shamans actually use themSchedule a Free 15-Min Cancer/Lyme Consultation at The Karlfeldt Center: 208-338-8902Resources:A Short, Strange Trip: An Untold Story of Magic Mushrooms, Madness, and a Search for the Meaning of Life in the Amazon - https://a.co/d/0e0B616uJohn O'Connor - https://www.johnmoconnor.com/True Hallucinations by Terence McKenna https://a.co/d/0dEV6eA2Food of the Gods by Terence McKenna https://a.co/d/0g548Lr6Medical Disclaimer: This content is for educational purposes only and is not intended to diagnose, treat, cure, or replace professional medical advice. Always consult your physician or qualified healthcare provider regarding any medical condition or treatment decisions.
What if the CBD or THC product that finally gives your child relief from seizures, or gives you a real night of sleep, becomes illegal in a few months, because of a sentence quietly added to a bill about reopening the government?In this episode of The Dr. K Show, Dr. K sits down with Joe Sheehey, founder and CEO of Cured Nutrition, about the fight to keep full spectrum hemp extract legal in the United States. Joe spent years as an aerospace engineer contracted to NASA through Lockheed Martin, until a mental health crisis in college and a later moment of shame over using CBD at a federally funded company pushed him to leave engineering and build a company around changing the conversation on cannabinoids.They cover the hemp definition change buried in the bill that reopened the government, the research behind a non-impairing THC dose, and the story of Charlotte Figi, whose family's use of full spectrum hemp extract for epilepsy helped start the entire industry. If you've wondered whether cannabinoids are safe, or you're watching access to them disappear state by state, this conversation lays out what's at stake.Key Takeaways:Why full spectrum CBD and THC products are set to become illegal nationwide on November 12, 2026, after a hemp definition change was folded into the bill that reopened the governmentThe Johns Hopkins research behind the 3 milligram non-impairing THC threshold, and why Cured Nutrition caps its products at 1.25 milligrams per servingCharlotte Figi, the 20 to 1 CBD to THC ratio, and how one family's use of full spectrum hemp extract for epilepsy became the foundation of the entire CBD industryFrom NASA-contracted aerospace engineer to CBD founder: Joe Sheehey on the mental health crisis and workplace shame that pushed him to start Cured NutritionWhy combining CBD with THC may help cancer patients avoid the opioid spiral of pain, lost appetite, and constipationSchedule a Free 15-Min Cancer/Lyme Consultation at The Karlfeldt Center: 208-338-8902Resources:Cured Nutrition - https://curednutrition.com Serenity Gummies - https://curednutrition.com/products/serenity-gummies One Hemp - https://onehemp.us Coalition for Access Now - https://www.coalitionforaccess.org Medical Disclaimer: This content is for educational purposes only and is not intended to diagnose, treat, cure, or replace professional medical advice. Always consult your physician or qualified healthcare provider regarding any medical condition or treatment decisions.
Why does losing sexual function make so many men ask themselves the same question: am I enough?In this episode of The Dr. K Show, Dr. K sits down with Jeff Nuziard, founder of RegenMax and a specialist in hormone optimization and erectile dysfunction reversal, about the moment his own body stopped working the way he expected it to. At 40, Jeff's testosterone had dropped from 1185 to 305 with no real change in his lifestyle, and the erectile dysfunction that followed sent him into a research process that has now spanned more than twenty years and treated over 3,200 patients.They talk about what actually happens inside the body during an erection, why the corpus cavernosum breaks down the same way a kitchen sponge does over time, and how RegenMax combines hormone optimization, collagen remodeling and a placenta-derived biologic to reverse erectile dysfunction in a reported 97 percent of cases, without relying on pills alone. Jeff also shares a statistic that stopped Dr. K cold: erectile dysfunction is now the third leading cause of suicide among men. If you or someone you love has quietly wondered whether this is just something to live with, this conversation says otherwise.Key Takeaways:Why erectile dysfunction is tied to a man's sense of identity, and its link to being the third leading cause of suicide among menThe real cause of erectile dysfunction: how the corpus cavernosum and a "venous leak" explain why men can get erect but can't maintain itWhy testosterone loss, not aging itself, is what activates the aging process, and how levels can fall from 1185 to 305 in about a decadeInside RegenMax: how collagen remodeling, angiogenesis and a placenta-derived biologic reverse erectile dysfunction in a reported 97 percent of casesWhy pelleted testosterone replacement, not injectable, is the more consistent way to keep hormone levels stable long termSchedule a Free 15-Min Cancer/Lyme Consultation at The Karlfeldt Center: 208-338-8902Resources:RegenMax - https://regenmax.com Medical Disclaimer: This content is for educational purposes only and is not intended to diagnose, treat, cure, or replace professional medical advice. Always consult your physician or qualified healthcare provider regarding any medical condition or treatment decisions.
What do you do when your five-year-old is already on three medications, and the doctor wants to add a fourth? In this episode of The Dr. K Show, Dr. K sits down with Dana Kay, founder of the ADHD Thrive Institute and author of Thriving with ADHD, about the medication spiral that sent her from accounting into functional medicine, and the moment in a doctor's office that changed her family's course.Dana Kay walks through her theory that most ADHD symptoms trace back to an overloaded body rather than a fixed brain disorder, covering gluten, gut health, and the testing she uses to find what's really driving a child's symptoms. If your child's diagnosis has felt like the end of the conversation instead of the start of one, this episode gives you somewhere else to look.Key Takeaways:Why ADHD diagnoses in children keep climbing, and why Dana Kay believes more than 70 percent of the kids she works with do not have true ADHDInside the medication spiral: how her son ended up on four ADHD medications by age five, and what the stimulant and SSRI side effects actually looked likeThe "trash can" theory of ADHD: how chronic inflammation, toxin overload and gut dysfunction drive ADHD symptoms in childrenGluten, glutamorphin and ADHD: how a gluten peptide that acts like morphine in the brain fuels meltdowns, anxiety and mood swingsWhy girls get diagnosed with ADHD later than boys, and how inattentive ADHD symptoms get missed at school and at homeSchedule a Free 15-Min Cancer/Lyme Consultation at The Karlfeldt Center: 208-338-8902Resources:ADHD Thrive Institute - https://adhdthriveinstitute.com Thriving with ADHD - https://www.goodreads.com/book/show/61281966-thriving-with-adhdMedical Disclaimer: This content is for educational purposes only and is not intended to diagnose, treat, cure, or replace professional medical advice. Always consult your physician or qualified healthcare provider regarding any medical condition or treatment decisions.
What does it mean when a woman in her fifties says her life force has just leaked out?In this episode of The Dr. K Show, Dr. K sits down with Dr. Julie Merriman, a licensed professional counselor supervisor, yoga therapist, and university professor whose new book carries a title that turns heads: Are We Gonna Have Sex or What? Dr. Merriman has watched her clients age alongside her over the years, and around fifty she started hearing the same thing over and over from the women in her practice: something felt gone, and they assumed they were broken. Her research pointed her toward the nervous system, and toward a pattern she believes gets missed in most conversations about hormones and menopause: a woman can be on hormone replacement and still not feel desire come back online if her body has spent thirty years bracing for the next item on the to-do list.They talk about why so many women hit fifty with a nervous system that has been running on fight or flight for decades, why hormone replacement alone often is not the full answer, and why Dr. Merriman believes an earth shattering orgasm might be one of the best resets available for a body that has forgotten how to soften. She also shares how she and her husband have kept their own forty-year marriage playful, and why respect, communication, and a little novelty matter as much as anything that happens in the bedroom. If you have ever felt like you have been carrying everyone else's needs for so long that you forgot where your own body finds pleasure, this conversation is for you.Key Takeaways:0:00 Introduction 0:27 The story behind "Are We Gonna Have Sex or What?" 0:59 Why the women in her practice felt their life force draining 6:59 Thirty years in fight or flight, and why the nervous system goes numb by fifty 15:02 Unlearning that heavy emotions were never okay to feel 19:26 Why hormone replacement alone does not bring desire back online 24:11 Sex as the best reset for a dysregulated nervous system 29:32 Respect, communication and keeping a forty-year marriage alive Schedule a Free 15-Min Cancer/Lyme Consultation at The Karlfeldt Center: 208-338-8902Resources:Are We Gonna Have Sex or What? - https://www.amazon.com/Are-Gonna-Have-Sex-What-ebook/dp/B0GHZCYSKZ Sexy After 50 (Dr. Julie Merriman's podcast) - https://podcasts.apple.com/us/podcast/sexy-after-50-improve-sex-intimacy-by-healing-your/id1865726696Medical Disclaimer: This content is for educational purposes only and is not intended to diagnose, treat, cure, or replace professional medical advice. Always consult your physician or qualified healthcare provider regarding any medical condition or treatment decisions.







