Akkermansia: A Keystone Microbe for Longevity and Metabolism

This GLP-1-Supporting Probiotic Is A Constant In Our Longevity Stack

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Join me and Dr. Colleen Cutcliffe, my brilliant friend, scientist, and the powerhouse CEO of Pendulum, for our deepest dive yet into all things Akkermansia. This free-flowing conversation will take your understanding of this extraordinary strain to a whole new level. We’ll explore Akkermansia’s pivotal role in metabolic health—think cravings, weight regulation, A1C—and why we’re deficient in the first place. Plus, we’ll discuss its connection to stress, anxiety, and even neurodegenerative diseases. We’ll also dive into the hotly debated topic of Akkermansia’s impact on MS, unpacking both sides of the controversy. And, we’ll touch on its promising influence on hormonal balance, from infertility to menopause. As someone who’s deeply invested in science, I’m personally bullish on Akkermansia and trust Pendulum’s products as part of my own foundational health stack. With groundbreaking science and fresh insights, this episode will change the way you approach your practice. ~DrKF

Healing Depression Project: Providing Hope For Treatment-Resistant Patients

Healing Depression Project: Providing Hope For Treatment-Resistant Patients

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For many struggling with depression, the message they often hear from traditional care is “just live with it” or “there’s nothing more we can do.” In today’s episode, we’re challenging that narrative. I’m joined by Dr. Achina Stein and Silvia Covelli, the founders of the Healing Depression Project. Dr. Stein, a functional psychiatrist, and Silvia, who’s personally battled chronic depression, are offering a fresh approach to treatment-resistant depression. Their in-residence program, launching in March, takes a whole-person approach—integrating nutrition, lifestyle changes, trauma healing, and community support. And with research built into the program, they’re not just helping patients; they’re also paving the way to make this approach more accessible for everyone. If you’re ready to rethink depression treatment, this episode is for you. ~DrKF

NAD+ in the Spotlight: New Insights on Boosting Cellular Resilience

NAD+ in the Spotlight: New Insights on Boosting Cellular Resilience

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I’m really excited about this one—Dr. Greg Kelly is back with us, and we’re diving deep into NAD, a molecule that’s finally getting the attention it deserves. If you’ve heard me talk about NAD before, you know how foundational it is for energy, longevity, and cellular health, but I’ve got to say—after today’s conversation, I’m looking at it in a whole new way. Dr. Kelly brings a fresh perspective on how NAD influences mitochondrial function, DNA repair, and even the aging process. He’s challenging the way we think about aging, and I’m here for it. For me, NAD is no longer just a side player—it’s going front and center in my supplement stack. If you’re wondering how it might show up clinically, whether it’s in fatigue or other signs of cellular stress, you’ll want to listen in. And if you’re like me, you’ll be adding this one to your regular routine. Have a listen and get ready to rethink how you approach aging and energy. ~DrKF

The Podcast After the Podcast: Revisiting Age Reversal with Dr. Greg Fahy

The Podcast After the Podcast: More on Age Reversal with Dr. Greg Fahy

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I was thrilled to finally sit down with Dr. Greg Fahy, whose groundbreaking work in aging has truly reshaped our understanding of what’s possible. His 2019 TRIIM study, showing clear biological age reversal through thymus regeneration, was a game-changer. The scientific community was stunned, and rightly so—this was the first real evidence that we can turn back the clock on aging. But Dr. Fahy isn’t stopping there. His ongoing studies hold incredible implications for the future, from potentially reversing autoimmunity to avoiding transplant rejection. Even more exciting is the possibility of creating a standardized protocol that could help other clinicians use these principles in practice. We’re on the brink of something truly revolutionary, and I’m already looking forward to having him back to hear what’s next. This conversation is a must-listen for anyone passionate about the future of longevity. ~DrKF

Innovative Approaches to Restoring Brain Function After Concussion and TBI

Innovative Approaches to Restoring Brain Function After Concussion and TBI

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The brain’s ability to recover after trauma is astonishing—and often overlooked in conventional care. In this episode of New Frontiers in Functional Medicine, I sit down with Dr. David Musnick, a long-time friend and brilliant clinician, to explore how we can unlock the brain’s full potential for healing. Dr. Musnick challenges the standard of care for traumatic brain injuries and post-concussion syndrome, introducing a functional medicine approach that integrates advanced tools like Frequency-Specific Microcurrent, targeted nutritional strategies, and personalized interventions. His insights into the stages of recovery, the importance of addressing neuroinflammation, and the role of the gut-brain connection were a true “aha” for me. We also dive into groundbreaking methods for reversing secondary brain damage, a concept that could change everything for patients and practitioners alike. This conversation is packed with actionable takeaways and hope for those navigating brain injuries, cognitive impairment, or persistent post-concussion symptoms. You don’t want to miss it.~DrKF

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An HRT Revolution is Underway. Are You Ready to Individualize Recommendations for Hormone Health?

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“What if the key to optimizing hormone therapy isn’t just in the hormones themselves, but in understanding the way they break down in the body?” In today’s episode, I’m thrilled to share my conversation with Dr. Allison Smith, a leader in hormone testing and a trusted expert at Precision Analytical, home of the DUTCH test. Dr. Smith’s work has helped revolutionize how we understand hormones, moving beyond simple serum testing to more comprehensive methods that examine how hormones are metabolized and how their breakdown products affect patient health.

Beyond Retinol: The Role of Urolithin A in Aging and Skin Health

Beyond Retinol: The Role of Urolithin A in Aging and Skin Health

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Talking with Dr. Julie Faitg was a powerful reminder of just how much we’re discovering about mitochondria and aging. When you pair an elite mitochondrial scientist with a breakthrough nutrient like Urolithin A, the insights go beyond what you’d expect. Julie gives us this incredible look into how we can actually change the course of aging at the cellular level. This conversation made me rethink what we know about supporting long-term health and resilience, and I think it will do the same for you. It’s one of those big-picture, eye-opening conversations that I can’t wait for you to hear.

Are You a Fast Metabolizer of Polyunsaturated Fatty Acids? Lessons from a Legend with Dr. Artemis Simopoulos

Are You a Fast Metabolizer of Omega Fatty Acids? Lessons from a Legend.

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Wow, I am beyond honored that the great Dr. Artemis Simopoulos joined me on New Frontiers. Basically, if you’re thinking about omega 3 and omega 6 fatty acids, it’s because of the pioneering work of this scientist. Hear how she figured out the importance of omega 3 fatty acids in a riveting tale of following the data, following hunches and importantly, asking the questions.

Connecting the Dots with the GI360: Expert Insights on Dysbiosis, Stress, GLP-1, and More

A 360-Degree View of the Microbiome: Practical Strategies for Clinicians

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There’s so much to unpack in this episode—I’m excited to dive into it with you. We cover cutting-edge tools like MALDI-TOF technology, which gives us a whole new level of precision in identifying microbial species. We also explore the bi-directional relationship between GLP-1 production and gut dysbiosis—something you might not be considering enough in your metabolic patients. Chronic stress and its deep impact on gut health and secretory IgA also come into focus, offering key insights into gut permeability, inflammation, and immune health. And we tackle the challenging questions around Akkermansia—whether it’s high, low, and what those levels really mean clinically. There’s so much to gain for your practice, so download your GI360 Sample Report and let’s dive in! ~DrKF

The Future of Longevity: Science-Backed Biomarkers and Lifespan Strategies with Dr. Matt Kaeberlein

Promise and Controversies: State of the State of Longevity Science with Matt Kaeberlein, PhD

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We’re at an extraordinary inflection point in science, where our understanding of aging is evolving in ways that seemed unimaginable just a decade ago. As we explore these exciting advancements, we’re also faced with the challenge of defining key concepts like biological age, healthspan, and longevity interventions. In this episode, I’m joined by Dr. Matt Kaeberlein—one of my favorite voices in this space—for a far-reaching discussion. We dive into everything from aging as a programmed phenomenon to the latest clocks and even the supplements in his personal stack. I’m sure you’ll find this conversation as fascinating and insightful as I did. ~DrKF