Have you ever wondered whether you should eat before your workout or train on an empty stomach? It's one of the most debated topics in fitness, and like most nutrition questions, the answer isn't one-size-fits-all. In this episode, I'm breaking down the science behind fasted versus fed training, who benefits most from each approach, and why your hormones, workout intensity, and goals all matter. Plus, I cover new research linking certain artificial sweeteners to faster brain aging and explain what it actually means for your everyday choices.

Fasted vs. fed training: https://www.thelyonsshare.org/2025/04/29/fasted-cardio-vs-fed-training-the-research-the-myths-and-what-actually-works/

Sugar substitutes article: https://www.sciencedaily.com/releases/2026/07/260717033213.htm

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In this milestone 300th episode, I celebrate this incredible podcast journey before sitting down with psychiatrist Dr. Matt Bernstein to explore the emerging field of metabolic psychiatry. We discuss how metabolism, nutrition, insulin resistance, ketones, exercise, and stress all influence brain health and mental wellness, and why improving metabolic health may be a powerful tool for supporting everything from brain fog and anxiety to more serious mental health conditions.

Dr. Matt Bernstein is a board-certified psychiatrist and one of the leading voices in the emerging field of metabolic psychiatry. With more than 25 years of clinical experience, he specializes in helping individuals achieve lasting recovery from serious mental illness through nutrition and metabolic therapies. He is the founder of Accord, a comprehensive metabolic psychiatry program, and has served in leadership roles at McLean Hospital and Ellenhorn. Dr. Bernstein also lectures nationally, advises several mental health organizations, and helps advance research exploring the role of metabolism in brain health.

Accord website: www.accordmh.com

Dr. Bernstein's LinkedIn: www.linkedin.com/in/mattbernsteinmd

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Gut health seems to be at the center of every health conversation, but it's also become one of the most misunderstood topics online. In this episode, I break down what the latest research actually tells us about the microbiome, why so many people feel worse when they start "eating healthy," and the biggest misconceptions I see in my functional nutrition practice. We'll talk about food sensitivities, restrictive diets, stool testing, the gut-brain connection, and the simple habits that make the biggest difference for long-term gut health.

Gut health has become confusing blog post: https://www.thelyonsshare.org/2026/07/21/gut-health-has-become-confusing-heres-what-actually-matters/

Microbiome and Diabetes study: https://www.cell.com/cell-reports-medicine/fulltext/S2666-3791(26)00252-1?

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Fitness advice on social media can be overwhelming, and often misleading. In this episode, I'm joined by Dani Coleman, VP of Training at PVOLVE (and Jennifer Aniston's longtime trainer!) to separate fact from fiction when it comes to exercise. We dive into some of the biggest fitness myths, including whether strength training makes women bulky, how high-intensity exercise affects cortisol, and what actually creates sustainable results. We also discuss mobility, recovery, bone health, overtraining, and why consistency always beats intensity. Whether you're just starting your fitness journey or you're someone who loves to exercise, this conversation will help you build a smarter, healthier relationship with movement.

Dani Coleman is the Vice President of Training and Head Trainer at PVOLVE, the clinically proven movement and longevity company focused on strength, mobility, and stability. With more than a decade of experience in the fitness industry, Dani has worked across boutique fitness, personal training, and digital coaching. She holds multiple certifications in corrective exercise, weight loss, hormone health, and functional movement. Dani is passionate about helping people build sustainable fitness habits that support lifelong health and confidence.

PVOLVE: https://www.pvolve.com/

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Are fatigue, brain fog, and low energy really just signs of aging? In this episode, I explore emerging research on vitamin B12 deficiency, why absorption matters just as much as intake, and who may be at greater risk for low B12 levels. Then I revisit one of today's most talked-about supplements, creatine, and explain why it's gaining attention far beyond the fitness world. We'll discuss the evidence behind creatine's benefits for muscle, brain health, recovery, and healthy aging, along with practical tips for choosing a quality supplement and using it safely.

All about creatine: https://www.thelyonsshare.org/2025/02/04/all-about-creatine-why-its-making-waves-in-the-health-world-and-if-you-should-take-it/

B12 release: https://www.sciencedaily.com/releases/2026/06/260623083116.htm

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In this episode, I sit down with Dr. Jacques MoraMarco and Dr. Yoon Kim, experts in Traditional East Asian Medicine, Tai Chi, mindfulness, and acupuncture, to explore the surprising power of walking as a tool for longevity, vitality, balance, and mental well-being. We discuss mindful walking practices, breathing techniques, Tai Chi-inspired animal walks, fall prevention, posture, and how even a few intentional minutes of walking each day can improve both physical and cognitive health. Whether you're looking to reduce stress, improve mobility, support healthy aging, or simply become more present, this conversation offers practical tools you can start using today.

Dr. Yoon Kim is a doctor of Traditional East Asian Medicine, licensed acupuncturist, educator, and fifth-generation Sun Tai Chi lineage holder. Raised in a family deeply rooted in East Asian medicine, she is the founder of Emperor's Wellness and has practiced mindfulness meditation for more than 20 years, studying with renowned teachers including Thich Nhat Hanh. Dr. Kim earned her Doctor of Education from the University of Southern California and combines acupuncture, Tai Chi, and mindfulness in her work with patients.

Dr. Jacques MoraMarco is a doctor of Traditional East Asian Medicine, licensed acupuncturist, and fourth-generation Sun Tai Chi lineage holder with nearly 50 years of clinical experience. A pioneer in the field, he took California's first acupuncture licensing exam in 1977 and has trained extensively in traditional Korean medicine, acupuncture, and Tai Chi. He is co-founder of the International Sun Tai Chi Association and has served in leadership and teaching roles at Emperor's College of Traditional East Asian Medicine.

Walking Your Way to Vitality Book: https://amzn.to/4c7q863

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Have you ever been told your labs are normal, but you still don’t feel your best? I hear this all the time, and in this episode, I explain why standard lab work doesn't always tell the full story. I share 10 common reasons you may be experiencing fatigue, brain fog, digestive issues, low energy, or other symptoms despite normal lab results, and I discuss new research linking ultra-processed foods to poorer cognitive function and increased dementia risk.

10 reasons you don't feel your best blog post: https://www.thelyonsshare.org/2026/06/23/10-reasons-you-feel-off-even-though-your-labs-are-normal/Ultraprocessed foods and dementia study: https://alz-journals.onlinelibrary.wiley.com/doi/10.1002/dad2.70335

Reignite Your Metabolism program: https://thelyonsshare.practicebetter.io/#/5dc87a1d2a83260b8460b13e/bookings?c=68a0e3c78f5cf55129b9abd2&step=course

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I sit down with nutrition scientist Dr. Luke Bucci to explore the powerful connection between blood flow, nitric oxide, mitochondrial health, and healthy aging. We discuss why circulation impacts nearly every function in the body, what causes energy levels to decline with age, and how nutrition, exercise, and targeted supplementation may help support long-term vitality. Dr. Bucci also explains the science behind nitric oxide, blood sugar regulation, and the role mitochondria play in keeping us energized and resilient throughout life.

Dr. Luke Bucci, PhD, CNS, CCN is the Chief Scientific Officer of Juvenon and a biomedical scientist with more than 40 years of experience in nutrition, dietary supplements, and clinical laboratory science. He earned his PhD in Biomedical Sciences from the University of Texas Health Science Center at Houston and has helped develop numerous patented nutritional products used worldwide. A recognized authority in healthy aging, sports nutrition, omega-3s, probiotics, and dietary supplement science, Dr. Bucci has authored scientific books, taught university-level courses, and received multiple industry awards for his contributions to nutrition and health innovation.

Juvenon: https://juvenon.com/

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