The Dr. Gabrielle Lyon Show

• The Truth About Calories and Weight Loss | Dr. James Hill

  Dr. James Hill—a expert on obesity, metabolism, and long-term weight management—joins me this week to unpack the biggest challenges in sustainable fat loss. Dr. Hill has spent decades researching weight control and the factors that determine whether people can keep weight off long-term. We discuss the science behind energy balance, metabolic flexibility, and why long-term weight loss is about more than just diet and exercise. He shares insights from his groundbreaking work with the National Weight Control Registry, the role of GLP-1 medications, and why physical activity is the key to preventing weight regain.We cover:The critical differences between weight loss and weight maintenanceWhy physical activity is perhaps more important for keeping weight off than losing itThe National Weight Control Registry: lessons from long-term weight loss success storiesHow metabolism, muscle mass, and energy expenditure affect weight regainThe role of protein and resistance training in preserving lean massThe impact of GLP-1 medications on weight loss and why most people regain weight after stopping themThe psychology of weight maintenance: mindset, self-monitoring, and behavior changeIf you’ve ever struggled to keep weight off, or you’re interested in the latest research on metabolic health and sustainable weight management, this episode is a must-listen.Who is Dr. James Hill?Dr. James Hill is an internationally recognized expert on obesity, metabolism, and weight management. He is the co-founder of the National Weight Control Registry, the largest ongoing study tracking individuals who have successfully lost weight and kept it off long-term. Dr. Hill has published over 400 scientific articles and has led pioneering research on energy balance, metabolic flexibility, and the role of physical activity in weight maintenance. He is a professor at the University of Alabama at Birmingham and has served as the President of The Obesity Society. His work has been instrumental in shaping modern obesity treatment and prevention strategies.This episode is brought to you by: Puori - Code DRLYON for 20% off sitewide!– https://Puori.com/DRLYON Cozy Earth - Code DRLYON for up to 40% off! – https://cozyearth.com/DRLYON BON CHARGE - Code DRLYON for 15% off! - https://boncharge.com/DRLYONManukora- Get $25 off the Starter Kit at https://manukora.com/DRLYONFind Dr. James Hill at:International Weight Control Registry https://internationalweightcontrolregistry.org/Scholars Profile - https://scholars.uab.edu/6698-james-hillAcademic Website - https://www.uab.edu/norc/about-us/leadership/executive-committee/james-hillFind me at: Instagram: @drgabriellelyonTikTok: @drgabriellelyonFacebook: facebook.com/doctorgabriellelyonYouTube: youtube.com/@DrGabrielleLyonX: x.com/drgabriellelyonApply to

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• The Science of Optimizing Your Testosterone | Abraham Morgentaler, MD

  In this episode, Dr. Abraham Morgentaler—an expert in urology and hormone health—helps unpack the biggest myths and misconceptions surrounding testosterone therapy for both men and women. He shares his pioneering research on testosterone replacement therapy, challenging outdated fears about its link to prostate cancer and highlighting the latest findings on how hormone therapy can impact overall health, libido, and longevity. The conversation explores the controversial history of testosterone in medicine, the common mismanagement of hormone deficiencies, and why free testosterone may be one of the most important markers for health.We cover:The truth behind the testosterone-prostate cancer debateHow testosterone deficiency is linked to obesity, cardiovascular disease, and dementiaThe stigma around testosterone therapy and why so many people remain untreatedThe effects of testosterone therapy on fertility, muscle mass, and mental well-beingThe role of testosterone in women's health and agingThe latest advancements in testosterone treatments and how they compareWhether you’re considering testosterone therapy, navigating hormone-related issues, or just interested in optimizing your health, this episode offers critical insights that could reshape your understanding of testosterone and its role in overall well-being.Who is Abraham Morgentaler? Dr. Abraham Morgentaler is a leading expert in men’s health and a pioneer in the treatment of testosterone deficiency. His research helped overturn the long-held belief that testosterone therapy increases prostate cancer risk, and he has published over 200 scientific articles on testosterone, prostate cancer, and male sexual health. A Harvard-trained urologist, he is currently the Blavatnik Faculty Fellow in Health and Longevity at Harvard Medical School. Dr. Morgentaler is also the founder of Men’s Health Boston and co-founder of the Androgen Society, and he continues to educate clinicians worldwide through his virtual fellowship and best-selling books on men's health.This episode is brought to you by: LMNT - Code DRLYON for free LMNT Sample Pack! - http://drinklmnt.com/drlyonOneSkin - Code DRLYON for Get 15% off! - https://www.oneskin.co/ Timeline - Code DRLYON for 10% OFF - https://timelinenutrition.com/DRLYONNeeded - Code DRLYON 20% off your first order - https://thisisneeded.comFind Dr. Morgentaler at: T4L Education: https://t4leducation.com/Linked In: https://www.linkedin.com/in/abraham-morgentaler-md-81628b6/ YouTube:

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  1:54:29
• The Truth About Nutrition: How You Can Take a Science-Based Approach | Bradley Johnston PhD

  Misinformation in nutrition is rampant. From demonizing red meat to hyping plant-based diets, conflicting advice has left many people confused about what’s truly evidence-based. In this episode, I am joined by Dr. Bradley Johnston, an expert in evidence-based nutrition and public health policies, to separate fact from fiction. With nearly 200 peer-reviewed publications, Dr. Johnston has challenged conventional wisdom—including recommendations from major organizations like the World Health Organization. He shares how evidence-based practices should guide our dietary choices, the importance of systematic reviews and meta-analyses, and how cognitive biases influence the research we trust.Key Points: How evidence-based guidelines are formed—and why they sometimes changeThe three pillars of evidence-based practice and why patient values matterWhy most nutrition studies aren’t as strong as we think—and how to critically evaluate themWhat the best available research actually says about dietary patterns for longevityThe role of AI in research and whether it’s a help or hindrance to scientific rigorIf you’ve ever questioned dietary guidelines, nutrition headlines, or conflicting health advice, this episode is a must-listen. Get ready to rethink everything you thought you knew about nutrition.Who is Dr. Bradley Johnston? Dr. Bradley Johnston is an Associate Professor at Texas A&M University, specializing in evidence-based nutrition, and the methodology of patient-reported outcomes, randomized clinical trials, systematic reviews, and clinical and public health practice guidelines. With a PhD in experimental medicine from the University of Alberta and post-doctoral training in evidence-based practice, epidemiology and biostatistics from Oxford and McMaster University, his research focuses on advancing human health research methodology to improve clinical and dietary practice recommendations and public health policies. He co-leads EvidenceBasedNutrition.org and NutriRECS, develops nutrition education resources (e.g. Nutrition Users’ Guides), and currently serves as Co-Chair of the Canadian Pediatric Obesity Management Guidelines, ensuring clinical and public health guidelines are backed and transparently supported by the best available evidence, including end user values and preferences, absolute estimates of effect and the certainty of evidence for estimates of effect. His overall aim is to empower patients, clients and members of the public to make fully-informed health care decisions based on the central tenets of evidence-based practice and policy. This episode is brought to you by: Timeline -Code DRLYON for 10% OFF https://timelinenutrition.com/DRLYONPuori - Code DRLYON for 20% OFF - https://puori.com/DRLYONBonCharge - Code DRLYON for 15% OFF - https://boncharge.com/DRLYONARMRA - Code DRLYON for 15% off! - https://armra.com/DRLYON/Find Dr. Bradley Johnston at: Evidence Based Nutrition - https://www.evidencebasednutrition.orgNutrition Users' Guides -https://www.evidencebasednutrition.org/nutrition-user-guidesTexas A&M University -

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• Plastic Surgery Myth Busting: The Truth About Breast Implants, Botox, and Beauty Trends | Dr. Kristy Hamilton

  In this episode, I sit down with Dr. Kristy Hamilton, a board-certified plastic surgeon, to explore the latest advancements in aesthetic medicine, the impact of social media on beauty standards, and the reality of breast implant illness. Dr. Hamilton shares her expert insights on facial rejuvenation, fat transfer, the safety of fillers, and new biostimulators while debunking common myths around plastic surgery. We also dive deep into the controversial rise of explant surgeries, the latest data on BII, and how surgical and non-surgical options can help individuals feel more confident in their skin. From the influence of celebrity procedures to the evolution of breast implants, this conversation is packed with science-backed insights, expert advice, and practical takeaways for those considering aesthetic procedures.Key Points: The truth behind plastic surgery and celebrity transformationsWhat can and can’t be fixed through diet, exercise, and non-surgical treatmentsBreast Implant Illness: What the latest research revealsThe risks of capsulectomy and explant regretThe role of fillers, biostimulators, and fat transfer in facial rejuvenationHow to approach facelifts and natural aesthetic treatmentsBest skincare practices for long-term anti-agingWho is Dr. Kristy Hamilton? Kristy Hamilton, MD, FACS is a plastic and reconstructive surgeon in Houston, Texas who specializes in aesthetic surgery of the face, breast, and body. An artist and a scientist, Dr. Hamilton blends form and function with an artistic eye to achieve beautiful, natural results. She understands patients’ individual needs and applies her surgical skill with meticulous detail, customized to each patient’s anatomy. Her patients’ well-being is her utmost concern, and she is well known for her compassionate care.Dr. Hamilton offers the full range of bespoke aesthetic plastic surgery including rhinoplasty, eyelid surgery, facelifts and facial rejuvenation, necklifts, fat transfer, chin surgery, breast augmentation and lifts, body contouring and liposuction, as well as reconstructive facial and breast surgery.This episode is brought to you by: LMNT - Code DRLYON for free LMNT Sample Pack! - http://drinklmnt.com/drlyonAG1 - Code DRLYON for FREE Welcome Kit and Starter Packs! - https://drinkAG1.com/DRLYONOur Place - Code DRLYON for 10% off - https://fromourplace.comTimeline - Code DRLYON for 10% OFF - https://timelinenutrition.com/DRLYONFind Dr. Kristy Hamilton at: Website: https://www.drkristyhamilton.com/ Instagram: https://www.instagram.com/drkristyhamilton/ LinkedIn:

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  1:46:43
• The Ultimate Protein Blueprint: How to Build Strength & Live Longer | Dr. Donald Layman

  Today, I welcome Dr. Donald Layman back to The Dr. Gabrielle Lyon Show for a deep dive into his decades of protein research, the flaws in dietary guidelines, and the evolving landscape of nutrition. Together, we explore the real reasons behind the obesity epidemic, why decades of dietary advice have led us astray, and how we can reclaim metabolic health through high-quality protein intake. Dr. Layman shares compelling research on protein requirements, nutrient density, and how misleading narratives around fat and cholesterol have shaped our food choices. This conversation will challenge what you think you know about nutrition and empower you with evidence-based strategies for long-term health.Key Points: The real reason behind the obesity epidemicWhy 45% of Americans are consuming too little protein – and what that means for metabolic healthHow dietary guidelines became politically driven and scientifically flawedThe food industry’s role in pushing low-nutrient, high-profit foodsThe dangers of refined grains and ultra-processed foods on body compositionBreaking the stigma around red meat and cholesterolFREE PROTOCOL: We’ve put together everything you need to know from this episode into the Ultimate Protein Blueprint Protocol—grab it here: https://institute-for-muscle-centric-medicine.kit.com/872e26a3d2 Who is Dr. Donald Layman?Dr. Donald Layman is one of the world’s foremost experts in protein metabolism and muscle health. A professor emeritus at the University of Illinois, his pioneering research has shaped modern understandings of protein requirements, nutrient timing, and the role of muscle in metabolic health. Over decades of work, Dr. Layman has challenged mainstream nutrition dogma and continues to advocate for evidence-based dietary recommendations that prioritize optimal human performance and longevity.This episode is brought to you by: Puori - Code DRLYON for 20% OFF - https://puori.com/DRLYONCozy Earth - Code DRLYON for 40% OFF - https://cozyearth.com/DRLYONBonCharge - Code DRLYON for 15% OFF - https://boncharge.com/DRLYON OneSkin - Code DRLYON for Get 15% off! - https://www.oneskin.co/ Find Dr. Donald Layman at: Metabolic Transformation - https://www.metabolictransformation.com/Find me at: Instagram: @drgabriellelyonTik Tok: @drgabriellelyonFacebook: facebook.com/doctorgabriellelyonYouTube: youtube.com/@DrGabrielleLyonApply to become a patient - https://drgabriellelyon.com/new-patient-inquiry/Join my weekly newsletter - https://institute-for-muscle-centric-medicine.ck.pageGet my book - https://drgabriellelyon.com/forever-strong/Timestamps: (00:00) - Welcome & Introduction(03:00) - The State of the American Diet(08:30) - The Role of Protein in...

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