The Vagus Nerve Connection: How Low Vagal Tone Disrupts Your Metabolism and Gut Health

You’ve run the labs, designed the perfect plan, and your client is following it… but progress stalls. Why is that happening?In today’s episode, we dive into why even the most well-designed functional protocols can fall short. It's not that your plan was wrong. It’s about sequencing. The body doesn't respond to everything at once, and when we miss the critical regulatory hierarchy, even the best plans can stall.We’ll unpack the gap between lab data and clinical outcomes, and why understanding readiness and context is the missing link for sustainable transformation.If you've ever had a case where the labs looked fine, the protocol seemed right, but the results didn’t follow through, this episode will change how you approach your work.What’s Inside This Episode?Why lab data alone won’t tell you what the body is truly ready to healThe hidden cause of stalled protocolsHow understanding the body’s regulatory hierarchy can unlock treatment successWhy addressing multiple dysfunctions at once often derails progressThe game-changer: why context and readiness are key to true healingThe critical next step: how to know when the body is actually ready to respondResources and Links: Download the full transcript here.Download our FREE Metabolic Health Guide here. Join the Next-Level Health Practitioner Facebook group here for free resources and community supportVisit INEMethod.com for advanced health practitioner training and tools to elevate your clinical skills and grow your practice by getting life-changing results. Check out other podcast episodes here

Despite the rising popularity of high-protein, low-carb diets and macro tracking, metabolic disease is still on the rise. So why isn’t the perfect macro balance solving the problem? In today’s episode, Dr. Ritamarie explores why focusing solely on macronutrients isn’t enough to restore metabolic health. While macros are important, they’re only one piece of the puzzle. The real key lies in understanding how the body responds to those inputs and why your clients might still struggle even when they’re following the "perfect" protocol.What’s Inside This Episode? Why just tweaking macros doesn’t address the deeper metabolic issuesThe hidden truth: metabolic health is driven by how the body responds, not just what you eatWhy insulin resistance, thyroid issues, and weight struggles persist even with the "right" macrosHow chronic stress, inflammation, and nervous system imbalances shift how the body handles foodThe vital shift from focusing on numbers to understanding the body’s signalsWhy looking at metabolic health through a systems lens changes everything in practiceThe real question practitioners should be asking to restore metabolic healthResources and Links:Download the full transcript here.Download our FREE Metabolic Health Guide here. Join the Next-Level Health Practitioner Facebook group here for free resources and community supportVisit INEMethod.com for advanced health practitioner training and tools to elevate your clinical skills and grow your practice by getting life-changing results. Check out other podcast episodes here

A sudden loss can shake even the most grounded among us.In this deeply personal solocast, Dr. Ritamarie reflects on the unexpected death of a colleague in the natural health community and the vulnerability it surfaced. When someone who appears healthy dies suddenly, it forces a difficult but necessary question: what silent risks might be accumulating beneath the surface?This episode explores the quiet progression of cardiovascular disease, the limitations of standard lab panels, and why doing everything “right” is not the same as measuring what matters. Dr. Ritamarie shares her own experience with elevated lipoprotein(a), what she did in response, and why awareness is not fear, it is responsibility.If you are a practitioner, this conversation is a reminder to screen earlier and look deeper. If you are on your own health journey, it is an invitation to measure what matters before symptoms ever appear.What’s Inside This Episode?Why sudden death in “healthy” people feels different and what it revealsThe silent progression of cardiovascular disease over decadesWhy standard cholesterol panels miss critical risk markersWhat lipoprotein(a) is and why most doctors never test for itHow inflammation, insulin resistance, and endothelial dysfunction quietly accumulateDr. Ritamarie’s personal experience lowering elevated Lp(a)Why genetics influence risk but do not dictate destinyThe difference between helplessness and awarenessWhat practitioners should be screening for now, not laterA powerful question to ask yourself about hidden riskResources and Links:Download the transcript hereDownload our FREE Cardiovascular Risk Assessment GuideJoin the Next-Level Health Practitioner Facebook group here for free resources and community supportVisit INEMethod.com for advanced health practitioner training and tools to elevate your clinical skills and grow your practice by getting life-changing results.Check out other podcast episodes here

Trauma isn't just something that lives in our minds. It has a profound impact on our biology. In this episode, Dr. Ritamarie sits down with Dr. Aimie Apigian, a double board-certified physician and expert in trauma biology, to explore the hidden impact of trauma on metabolism, immunity, and the nervous system. Dr. Apigian explains how unresolved trauma can trigger physical symptoms, including chronic illness.You’ll discover the biological processes that make trauma a root cause of illness, why the body keeps the score, and how trauma creates a feedback loop that keeps people stuck in their symptoms. Dr. Apigian shares actionable strategies for practitioners and self-healers to help break the trauma cycle, understand the body’s response, and guide their clients toward healing.What’s Inside This Episode?How unresolved trauma rewires your metabolism, immunity, and nervous systemThe "Body Trauma Loop": Why trauma keeps you in fight or flightHow childhood trauma shapes adult health, metabolism, and immunityThe 3-phase healing process: From safety to expansionWhy “little T” trauma can be just as damaging as “big T” traumaHow to recognize when trauma is the root cause of chronic symptomsResources and Links:Download the full transcript hereDownload our FREE Guide to Fasting for Health and LongevityJoin the Next-Level Health Practitioner Facebook group here for free resources and community supportVisit INEMethod.com for advanced practitioner training and tools to elevate your clinical skillsCheck out other podcast episodes hereGuest Resources and Links:Dr. Aimie Apigian’s Website: biologyoftrauma.comDr. Aimie Apigian’s Book - The Biology of Trauma: Get the book hereDr. Aimie Apigian’s Podcast: Biology of Trauma PodcastFree Gift: Nervous System Reset - Five Somatic PracticesConnect with Dr. Aimie on Social Media:Instagram: @dr.aimieLinkedIn: Dr. Aimie ApigianYouTube: Dr. Aimie ApigianGuest BioDr. Aimie Apigian, double board-certified physician (Preventive/Addiction Medicine) with master's degrees in biochemistry and public health, revolutionizes trauma healing by revealing how our cells—not just our minds—store trauma. Her book "The Biology of Trauma" (foreword by Gabor Maté) transforms our understanding of how the body experiences and holds trauma. After adopting a child during medical school sparked her journey, she developed an integrative science-based sequence for the healing journey. Through her practitioner training, podcast, YouTube channel, and international speaking, she bridges functional medicine, attachment and trauma therapy, proving that repairing trauma's impact on the mind, body, and biology is possible.

Most nutrition advice still treats food as fuel, calories to burn, macros to balance, energy to manage. The body doesn’t experience food that way.In this foundational episode, Dr. Ritamarie explains why food is first and foremost information, a powerful metabolic signal that shapes hormones, stress responses, inflammation, and repair, before calories are ever used.You’ll learn why rigid nutrition plans often fail, why the same food can produce opposite effects in different bodies, and how a nutritional endocrinology lens transforms nutrition from mechanical rules into physiological understanding.If you’ve ever followed a “perfect” diet and still felt stuck, or watched good food choices backfire, this episode reveals what’s really happening beneath the surface.What’s Inside This Episode?Why the calorie-and-macro model explains combustion, but not communicationThe signals every meal sends to insulin, cortisol, thyroid, and inflammationWhy the same food can calm one body and stress anotherHow timing, stress, and metabolic state change how food is interpretedThe real reason rigid nutrition protocols stall progressWhat it means to match food choices to the body’s current prioritiesHow nutritional endocrinology teaches you to listen instead of overrideResources and Links:Download the full transcript hereDownload our FREE Functional Food Guide hereJoin the Next-Level Health Practitioner Facebook group here for free resources and community supportVisit INEMethod.com for advanced health practitioner training and tools to elevate your clinical skills and grow your practice by getting life-changing results. Check out other podcast episodes here

Most people assume metabolic breakdown is due to missing hormones, nutrients, or protocols. The truth? It’s often a misunderstanding of how the body works.In this episode, Dr. Ritamarie explains why chronic metabolic issues aren’t solved by fixing isolated markers, and why systems-level thinking is essential for healing. She introduces nutritional endocrinology and how the body adapts, communicates, and prioritizes survival through interconnected signals.If you’ve ever followed the right protocol, seen lab improvements, and still felt stuck, this episode reveals why and what to do about it.What’s Inside This Episode?Why metabolic health unravels even when nothing appears “missing”The mistake that turns well-intended protocols into stalled progressHow the body actually communicates and why most approaches miss itThe consequences of chasing isolated lab numbers instead of patternsA different way to understand metabolism that explains inconsistencyWhy doing everything “right” can still lead to the wrong outcomeWhat changes when metabolic health is viewed as a system, not a set of partsResources and LinksDownload the full transcript hereDownload our Free Guide to Supporting a Healthy and Balanced Immune SystemJoin the Next-Level Health Practitioner Facebook group here for free resources and community supportVisit INEMethod.com for advanced health practitioner training and tools to elevate your clinical skills and grow your practice by getting life-changing results.Check out other podcast episodes here

In today’s special 4-year anniversary episode, Dr. Ritamarie Loscalzo reflects on the evolution of the ReInvent Healthcare podcast and the critical need for systems thinking in healthcare.From the beginning, this podcast has aimed to challenge the status quo, helping practitioners and health-seekers break free from the limitations of reductionist medicine. Dr. Ritamarie explores why foundational knowledge alone is not enough and how nutritional endocrinology, a systems-based approach to metabolic health, is the key to real, sustainable change.What’s Inside This Episode?Why “this for that” thinking sabotages even the best intentions in healthcareThe missing layer that explains why chronic and metabolic cases stay stuckThe lens that changes how food, hormones, and metabolism actually make sense togetherWhat today’s healthcare model gets fundamentally wrong when the labs “look fine”The deeper purpose behind ReInvent Healthcare, and where this next chapter is headedResources and Links:Download the transcript hereGet the FREE Magic Questions and Health Detective SystemJoin the Next-Level Health Practitioner Facebook group Visit INEMethod.com for advanced practitioner tools and trainingCheck out other podcast episodes: ReInvent Healthcare

"There is a slight echo in the audio, and we apologize for the inconvenience. A full transcript is available if you prefer to read instead of listen."What if the key to resolving your client’s chronic inflammation, metabolic dysfunction, or hormone imbalance was a neural switch hidden in the body? In this episode of ReInvent Healthcare, Dr. Ritamarie sits down with “The Vagus Nerve Doc,” Dr. Navaz Habib, to expose how vagus nerve activation regulates the immune system, improves digestion, and acts as the true foundation for healing. If your clients aren't getting results, even with the perfect diet or plan, this could be why.What’s Inside This Episode?The most overlooked switch that determines whether healing can even beginWhy the vagus nerve is more than just a “relaxation nerve” and what it controlsA deep dive into the neuroimmune connection (and how it explains autoimmune flares, chronic fatigue, and more)The role of HRV, CO₂ tolerance, and breathwork in rewiring the nervous systemWhat the 80/15/5 rule reveals about the direction of vagus nerve communicationHow to assess vagus tone with the BOLT score, no labs neededWhy even GLP-1 and satiety hormones rely on vagus nerve signalingA practical breathwork roadmap, plus the best timing for real resultsBonus: how Dr. Ritamarie’s son hacked an early HeartMath device on a plane!Resources and Links:Download the Full Transcript HereDownload our FREE Guide to Adrenal Support Join the Next-Level Health Practitioner Facebook group Visit INEMethod.com for advanced practitioner tools and trainingCheck out other podcast episodes: ReInvent HealthcareGuest Resources and Links:Checkout Dr Habib’s website DrNavazHabib.com and HealthUpgraded.comGrab Dr Habib’s Free Gift – 10-Day Vagus Nerve Jumpstart: Access HereCheckout Dr Habib’s Books – Activate Your Vagus Nerve and Upgrade Your Vagus Nerve (read by Dr. Habib)Podcast – The Health Upgrade Podcast:Listen on Apple or Listen on SpotifySocial Media:Instagram: @drnavazhabibFacebook: DrNavazHabibYouTube: Dr. Navaz HabibLinkedIn: Dr. Navaz HabibGuest Bio:Dr. Navaz Habib, aka "The Vagus Nerve Doc," is a best-selling author of 2 books - “Activate Your Vagus Nerve” and “Upgrade Your Vagus Nerve” and host of The Health Upgrade Podcast. After using functional medicine to overcome his own health challenges, Dr. Habib built Health Upgraded, an online health program implementing his VAGUS protocol, to guide parents and professionals to enhance their health by unlocking the healing power of the Vagus nerve to reduce the effects of stress and inflammation.

Chronic fatigue and unexplained illness can be incredibly frustrating for patients and practitioners alike. In this episode, Dr. Ritamarie dives deep with Dr. Alison Grimston, a UK-based functional medicine physician, to uncover the hidden contributors to chronic fatigue, including mold toxicity, Lyme disease, Long COVID, and reactivated infections.You’ll learn how to approach these complex cases with compassion, advanced testing, and functional strategies including lifestyle, nutraceuticals, and pharmaceutical interventions. This conversation sheds light on why many people continue to struggle despite conventional care and how a root-cause approach can restore hope and health.What’s Inside This Episode?Why chronic fatigue syndromes, Long COVID, and post-infectious conditions are often misdiagnosedHow mold toxicity, viral reactivation, and vector-borne infections hide from standard testingFunctional testing strategies for Lyme, Babesia, Bartonella, and other co-infectionsThe role of genetics and nutrigenomics in guiding testing and treatmentIntegrative approaches combining lifestyle, diet, mindfulness, and targeted pharmaceuticalsEarly warning signs practitioners should never overlookWhy patience and multi-layered care are crucial for recoveryResources and Links:Download the full transcript hereDownload our FREE Guide to Supporting a Healthy and Balanced Immune SystemJoin the Next-Level Health Practitioner Facebook group here for free resources and community supportVisit INEMethod.com for advanced practitioner training and tools to elevate your clinical skillsCheck out other podcast episodes hereGuest Resources and Links:Dr. Alison Grimston’s website: DrFinlays.co.uk | DoctorAllie.comFree gift Tantalizing SmoothiesConnect with Dr Ali on Social Media:FacebookX/TwitterLinkedIn:Instagram YouTubeGuest BioDr Alison Grimston is a UK-based functional medicine physician with a background in general practice and extensive experience supporting individuals with complex, chronic fatigue-related conditions. With advanced training in nutrigenomics and root-cause medicine, she focuses on the hidden contributors to illness — including mold toxicity, Lyme disease, Long COVID, and chronic infections. She is passionate about empowering patients with personalised strategies to optimise energy, resilience, and long-term health.

Complex cases rarely fall apart because of missing data. They fall apart because there’s no clear direction for what to look at first.In this solocast, Dr. Ritamarie breaks down the thinking process behind effective root-cause work. Not more labs. Not more tools. But the mental model that helps you connect symptoms, patterns, physiology, and history into a clear, actionable hypothesis.This episode walks you through how experienced practitioners move from reacting to data to making sense of it. You’ll learn how to identify the right entry point, avoid overwhelm, and build confidence in your clinical decisions without chasing everything at once.If you’ve ever felt stuck between too much information and not enough clarity, this episode will give you a framework you can return to again and again.What You’ll Learn in This EpisodeWhy more data doesn’t automatically lead to better decisionsWhat a root-cause hypothesis really is, and what it is notHow to recognize symptom patterns instead of chasing diagnosesThe systems most commonly involved in fatigue, weight changes, mood shifts, and metabolic imbalanceHow to identify upstream contributors that feed downstream symptomsWhat pattern clustering reveals about where to startHow to determine the primary driver that creates the biggest shift with the fewest stepsCommon mistakes that keep practitioners stuck in complexityWhy sequence matters more than volume when supporting healingHow a strong hypothesis saves time, money, and unnecessary testingResources and LinksDownload the full Transcript hereJoin the Next-Level Health Practitioner Facebook Group here for free resources and community supportVisit INEMethod.com for advanced health practitioner training and tools to elevate your clinical resultsCheck out other podcast episodes here