The Root Cause Rx

Dr. Nate Fulton
  • 5.0 (2)
  • ALTERNATIVE HEALTH
  • UPDATED WEEKLY

Tired, bloated, burned out — and your doctor says you’re fine? You’re not broken. You’re just misunderstood. The Root Cause Rx is your no-fluff guide to functional medicine that actually makes sense. Hosted by Dr. Nate Fulton, NMD — dad of 3, mitochondria nerd, and root-cause detective — this show breaks down fatigue, hormones, gut health, inflammation, and metabolic chaos in plain English. Real talk. Real labs. Real answers. Because “normal” isn’t always optimal — and you deserve better.

  1. 1D AGO

    Why You Wake Up at 3AM (And Can’t Fall Back Asleep)

    Functional medicine physician Dr. Nate Fulton explains the physiology of nighttime anxiety, 3AM waking, and nervous system dysregulation — and exactly how to fix the root cause. You finally got into bed. And for about four seconds — it felt like it might actually happen. Then something shifted. Not a panic attack. Not a crisis. Just — a shift. Chest tighter. Thoughts suddenly sharp. Body acting like staying awake is the most important thing it's done all day. This isn't a sleep problem. It isn't an anxiety problem. It's a nervous system that never got the signal the day was over. If you've addressed the obvious — sleep hygiene, stress management, even therapy — but you're still lying awake at night or waking up at 3AM unable to fall back asleep, the physiological trigger is still firing underneath. This episode breaks down exactly why this happens — and what to actually do about it. What you'll learn: • Why anxiety gets worse at night — and what your nervous system is actually doing• The second wind explained: why you get a burst of energy at 10PM and why it's not a good sign• The 2–4AM wake-up window: the exact physiological reason you wake up at the same time every night• Why your thoughts get darker at 3AM — and the neuroscience behind it• The hidden daytime inputs building your nighttime dysregulation: blood sugar crashes, caffeine timing, emotional suppression, under-recovery, and more• Why your body has learned to distrust stillness — and how to reverse it• A practical two-level framework for regulating your nervous system at night• When lifestyle changes aren't enough — the labs that actually show what's happening underneath If you feel anxious at night for no reason, wake up between 2 and 4AM and can't fall back asleep, or have been told your labs are normal but still feel off — this episode finally explains why. → Follow Root Cause RX on Spotify and save this episode. FREE RESOURCE The Sleep Reset Guide If you're doing everything right and still not sleeping, the problem isn't your habits. It's the signals underneath. This free guide walks through the 8 root systems Dr. Nate checks when sleep is off — and exactly how to start resetting them. 👉 Download it here WORK WITH ME 👉 Book a free 15-minute discovery call SUPPLEMENTS 15% off practitioner-grade supplements through Fullscript. 👉 Click Here

    50 min

  2. MAY 11

    Anxious for No Reason? The Problem Isn't Your Mind. It's Your Body.

    Anxious for no reason? It's not in your head — it's in your body. Functional medicine physician Dr. Nate Fulton explains the physiology of chronic anxiety and how to fix the root cause. If you've tried therapy, meditation, and breathing exercises but chronic anxiety keeps coming back — the physiological trigger is still firing underneath. This episode breaks down exactly why, and what to actually do about it. What you'll learn: Why you feel anxious for no reason — and what your nervous system is actually doingThe 6 root causes of chronic anxiety nobody checks: blood sugar crashes, sleep debt, chronic inflammation, gut-brain signaling, cortisol dysregulation, and magnesium deficiencyWhy anxiety and gut health are directly connectedThe body-brain loop that keeps anxiety returning even after therapy16 signs of nervous system dysregulation most people have normalizedHow to regulate your nervous system — a practical two-level frameworkWhy you cannot think your way out of a physiological signalIf you feel anxious for no reason, have chronic anxiety, or have been told your labs are normal but still feel off — this episode finally explains why. → Follow Root Cause RX on Spotify and save this episode. FREE RESOURCEThe Crash Behind the Panic — if your anxiety hits at the same time every day, spikes after coffee, or softens after you eat, blood sugar instability may be the root cause. This free guide walks you through exactly why it happens and how to stabilize it.👉 Download it here WORK WITH ME👉 Book a free 15-minute discovery call SUPPLEMENTS15% off practitioner-grade supplements through Fullscript.👉 Click Here

    58 min

  3. MAY 4

    What I'd Do If I Was Still Bloated (Step-by-Step Fix for Chronic Bloating)

    Still bloated after every meal — even when you're eating healthy? The problem isn't what you're eating. It's the order of what you're doing about it. If you've tried cutting gluten, pulling dairy, taking probiotics, doing elimination diets, and you're still dealing with a bloated stomach every single day — this episode is for you. Most people dealing with chronic bloating have been handed answers to questions that were never actually asked. They've tried the right things in the wrong order. And doing the right things in the wrong order is almost as useless as doing the wrong things. In this episode, I walk through exactly what I would do — step by step — if I woke up tomorrow dealing with the bloating and digestive issues my patients deal with every day. What's covered: The 6 root-cause patterns behind bloating after eating: low stomach acid, sluggish bile flow, SIBO (small intestinal bacterial overgrowth), poor gut motility, nervous system dysregulation, and blood sugar instabilityWhy your "healthy" diet might be making your bloating worseThe habits secretly working against you — including snacking, random probiotic use, and over-restrictionThe 5-phase clinical sequence that actually restores gut function — not just manages symptomsA realistic week-by-week timeline so you know what to expectWhen SIBO breath testing, thyroid labs, and stool testing actually change your approachIf you've been told your labs are normal but still feel terrible — this framework finally makes sense of it. FREE BLOAT DECODER If you're listening and thinking… "this is me" — I made something for you. The Bloat Decoder is a step-by-step guide to help you connect your bloating pattern to what's actually driving it. So you stop guessing and finally know where to start. 👉 Download it here DEEP DIVE (IF YOU WANT TO GO FURTHER) If you want to understand the full root-cause picture behind your bloating — including what labs to consider, what each pattern feels like, and what to ask your doctor — this is the next step. 👉 Read the full breakdown here WORK WITH ME If you're ready to work through this with someone who can look at your specific patterns, history, and picture — this is exactly what I do with patients. 👉 Book a free 15-minute discovery call SUPPLEMENTS Get 15% off practitioner-grade supplements through my Fullscript dispensary.👉 Click Here

    1h 1m

  4. APR 26

    SIBO Explained: Why Healthy Food Makes Bloating Worse (And How to Actually Fix It)

    If healthy food is making your bloating worse, SIBO — Small Intestinal Bacterial Overgrowth — is likely why. In this episode, I break down exactly what's happening in your gut, why the standard treatment keeps failing, and what it actually takes to fix it. You cleaned up your diet. Added the vegetables. Did everything right.And your stomach got worse — not better. That's not random. That's not a food sensitivity. That's a specific, identifiable pattern with a mechanism behind it. And once you understand it, this whole thing starts to make sense for the first time. WHAT THIS EPISODE COVERS A full deep dive on SIBO and gut motility — including why bloating builds across the day, why healthy high-fiber foods cause more symptoms than processed ones, and why most SIBO treatment fails and people keep relapsing. Topics include: SIBO and small intestinal bacterial overgrowth explainedGut motility and the Migrating Motor Complex (MMC)Why fermentation in the wrong location causes bloating and gasPost-infectious IBS and gut damage after food poisoningWhy low stomach acid makes bacterial overgrowth worseHow chronic stress suppresses gut motility and drives SIBOWhy the low-FODMAP diet isn't a long-term solutionThe SIBO relapse cycle — and how to break itVisceral hypersensitivity and why symptoms feel out of proportionA five-phase root cause framework for lasting recoveryIf you've done a protocol, felt better for a few months, and watched it all come back — this episode is for you. IN THIS EPISODE Why bloating that builds across the day points to one specific gut motility problemThe Migrating Motor Complex — what it is, what breaks it, and why it's the centerpiece of the SIBO storyWhy treating SIBO with antibiotics alone is mopping a flooded floor without turning off the tapHow one bad bout of food poisoning can trigger years of gut dysfunctionWhy eating frequently makes SIBO worse — even when smaller meals feel saferThe difference between managing symptoms and fixing the systemWhy the food was never the problem — it was just revealing one FREE BLOAT DECODER If you're listening to this and thinking… "this is exactly me" — I made something for you. The Bloat Decoder is a free step-by-step guide to help you connect your bloating pattern to what's actually driving it underneath. Stop guessing. Know where to start. 👉 Download it here DEEP DIVE (IF YOU WANT TO GO FURTHER) Already tried a few things? Want to understand what's driving your specific pattern? This guide walks you through: The exact root-cause patterns behind chronic bloatingWhat each pattern feels like so you can identify yoursWhat labs and functional tests to considerWhat to ask your doctor so you don't get dismissedFrom "this sounds like me" → to "this is what I need to do next." 👉 Read the full breakdown here WORK WITH ME If you've cleaned up your diet, tried the protocols, and you're still not improving — this is exactly what I help people work through. 👉 Book a free 15-minute discovery call SUPPLEMENTS Get 15% off practitioner-grade supplements through my Fullscript dispensary. 👉 Click here Follow Root Cause Rx for weekly episodes on the root causes behind symptoms most people are told to ignore. If this episode clicked — send it to someone who's been eliminating foods for years and still has no idea why.

    51 min

  5. APR 13

    Why You Feel Bloated Every Day (Even When You Eat Healthy) | Gut Health, SIBO & Digestion

    You’re eating healthier… so why do you still feel bloated after every meal?In this episode, you’ll learn the real root causes of bloating — including gut health, digestion, SIBO, low stomach acid, and gut motility — and why it’s not just the food. You cleaned up your diet.You’re paying attention.You’re trying to do everything right. And yet… By the afternoon, your stomach feels tight.By the evening, you look like a completely different person than you did that morning. That’s not random. There’s a pattern underneath it. And once you see it —this whole thing starts to make a lot more sense. Because bloating isn’t just about what you eat. It’s about how your digestion is functioning across the entire day. WHAT THIS EPISODE COVERS In this episode, I break down the most common root causes of bloating and poor digestion, including: • Low stomach acid and poor protein digestion• Sluggish bile flow and fat digestion issues• SIBO (small intestinal bacterial overgrowth) and gut dysbiosis• Gut motility and the Migrating Motor Complex (MMC)• Nervous system dysregulation (fight-or-flight vs rest-and-digest)• Blood sugar instability and cortisol-driven digestive shutdown …and how these systems interact to create the pattern of bloating that builds across the day. If you feel fine in the morning… and progressively worse after each meal — this episode is for you. IN THIS EPISODE • Why bloating that builds across the day is a pattern — not just a food issue• How low stomach acid leads to fermentation, gas, and pressure• Why fatty foods feel worse when bile flow is sluggish• The real reason “healthy foods” can make bloating worse (SIBO pattern)• How slow gut motility allows bacteria to overgrow in the wrong place• Why eating too frequently can shut down your gut’s cleanup cycle (MMC)• How stress and nervous system state directly turn digestion on or off• The connection between blood sugar crashes, cortisol, and bloating• Why food sensitivities are often a capacity problem — not a food problem• What’s actually happening when everything starts to feel reactive FREE BLOAT DECODER If you’re listening to this and thinking…“Okay… this is me.” I made something for you. The Bloat Decoder — a step-by-step guide to help you connect your bloating pattern to what’s actually going on underneath it. So you stop guessing…and finally know where to start. 👉 Download it here DEEP DIVE (IF YOU WANT TO GO FURTHER) If you’ve already tried a few things…or you’re the type of person who wants to actually understand what’s driving this —this is the next step. This guide walks you through: • The exact root-cause patterns behind bloating• What each pattern feels like (so you can identify yours)• What labs and functional tests to consider• What to ask your doctor (so you don’t get dismissed) This is where you go from“this sounds like me” → to “this is what I need to do next.” 👉 Read the full breakdown here WORK WITH ME If your bloating, digestion, and energy aren’t improving — even though you’re doing everything right — this is exactly what I help people work through. 👉 Book a free 15-minute discovery call SUPPLEMENTS Get 15% off practitioner-grade supplements through my Fullscript dispensary. 👉 Click Here Follow Root Cause Rx for weekly episodes breaking down the physiology behind symptoms most people are told to ignore. If this episode resonated, share it with someone who’s tired of being told to “just cut more foods” — and still feels worse.

    55 min

  6. APR 6

    Why You Feel Terrible Even When Your Labs Are Normal (BPA, Plastics & Your Hormones)

    Why You Feel Terrible Even When Your Labs Are Normal (BPA, Plastics & Your Hormones) | Root Cause Rx You're doing everything right… so why do you still feel like this? That’s the question this episode answers — and it might be the most important one I’ve covered on this show. Because the fatigue… the brain fog… the hormones that feel off… the body that stopped responding the way it used to —that’s not random. There’s a pattern underneath it. And one of the biggest, most overlooked drivers of that pattern is something most people interact with dozens of times a day without thinking twice. Plastics. Not in a fear-based, throw-everything-out way.In a here’s-exactly-what’s-happening-in-your-body way. Because once you understand the mechanism —the whole confusing picture starts to make sense. In this episode, I break down how BPA and phthalates — endocrine-disrupting chemicals found in everyday plastics — are interfering with: • Your hormone signaling• Your energy production• Your inflammation levels• Your nervous system …and why standard lab testing almost never catches it. If you’ve been told your labs are normal… while still feeling terrible — this episode is for you. In This Episode • Why you can have normal hormone levels but abnormal hormone function• How BPA & phthalates mimic, block, and distort hormonal signals• The testosterone connection — and why this affects women just as much as men• What endocrine disruptors are doing to your thyroid beyond what labs show• How plastic exposure impacts mitochondrial function (and why that explains your exhaustion)• The inflammation loop keeping your body stuck in low-grade defense mode• Why your nervous system reads chemical burden as a threat — and how that alters cortisol• The Stack Effect — why everything feels fine… until it suddenly doesn’t• Why most popular detox protocols are physiologically backwards• The six highest-impact changes that actually move the needle This isn’t about perfection.This isn’t about overhauling your life. It’s about understanding what your body is responding to —and reducing the biggest signals first. Because when the load comes down…your body doesn’t have to keep compensating the same way. And that’s when things start to feel different. 🩺 Work With Me If your energy is inconsistent, your hormones feel off, and you’re tired of being told “everything looks fine” —this is exactly what I help people work through. 🔗 Book a free 15-minute discovery call 💊 Practitioner-Grade Supplements 🔗 Get 15% off through my Fullscript dispensary Follow Root Cause Rx so new episodes land in your feed automatically — new episodes every week. If this resonated, share it with someone who’s been dismissed with “normal labs” and no real answers. This might be the explanation they’ve never been given.

    1h 15m

  7. MAR 30

    You Don’t Feel Stressed… So Why Are You So Tired? (The Hidden Stress Your Body Is Carrying)

    If you’re tired all the time…even though you don’t feel that stressed…and your energy just isn’t consistent— this episode will explain why. This is one of the most common patterns I see in practice.And it’s also one of the most misunderstood. Because most people think stress is what you feel. Deadlines.Pressure.Big life events. But that’s not the full picture. Because your body doesn’t just respond to what you feel… it responds to everything it has to keep up with behind the scenes. Sleep that didn’t fully restore you.Blood sugar swings that keep pulling a stress response.Low-grade inflammation quietly draining your energy. And over time—that load adds up. In this episode of the Root Cause Rx Podcast, I break down why you can feel “not that stressed”…and still feel exhausted, wired at night, and off during the day. Because most of the time, this isn’t a discipline problem. It’s a load problem. Your body isn’t broken.It’s adapting to the total demand being placed on it. And when that demand stays high—your energy, sleep, and recovery all start to shift. This episode breaks down the real connection between stress, fatigue, sleep, and energy levels— and why they don’t always feel the way you expect. 🎧 In this episode, we cover: • Why stress doesn’t always feel like stress—and how it affects your energy• How poor sleep acts like a stressor (even if you’re getting enough hours)• The connection between blood sugar crashes and stress hormones• Why you feel tired… but wired at night• What 2–4 AM wakeups are really telling you• How low-grade inflammation quietly drains your energy• The “stack effect” and why everything feels fine… until it doesn’t• Why your body starts relying on cortisol just to function• The real reason your energy feels inconsistent day to day• How to start lowering the total load on your system This episode isn’t about doing more. It’s about understanding what your body is responding to…and starting to take pressure off the system. Because when the load comes down, your body doesn’t have to keep compensating the same way. And that’s when things start to feel different. 🎁 Free Resource: The Sleep Reset Guide If this episode resonated with you, I put together a simple guide to help you recognize the patterns that are quietly draining your energy, and where to start.Download it here: 🔗 Get the Free Guide 📲 Follow the Root Cause Rx Podcast Follow the show so new episodes automatically show up in your feed. ⭐ Enjoying the podcast? A quick rating or review helps more people find the show, and helps this message reach someone who’s been feeling stuck. 🩺 Work With Me 1:1 If you’re dealing with low energy, poor sleep, or feeling “off” despite doing everything right—this is exactly what I help people work through.🔗 Book a free 15-minute discovery call 💊 Supplements I Trust Access my Fullscript dispensary for practitioner-grade supplements I use in clinic:🔗 Get 15% off the supplements I recommend(Discounts applied automatically)

    34 min

  8. MAR 23

    Doing Everything Right… But Still Can’t Lose Weight? This Is What’s Keeping You Stuck

    If you’re doing everything right…eating clean, working out, staying consistent…and still can’t lose weight— you’re not alone. This is one of the most common patterns I see in practice. And it’s also one of the most misunderstood. Because most people assume fat loss is just about eating less and moving more. But if that were the full story…you wouldn’t still feel stuck. In this episode of the Root Cause Rx Podcast, I’m breaking down why you can be disciplined, consistent, and doing everything “right”… and still not lose weight. Because most of the time, this isn’t a willpower problem. It’s a signal problem. Your metabolism is not broken.Your body is adapting to the signals it’s receiving. And when those signals point to stress, low energy availability, or inconsistency… your body responds by slowing things down—not speeding them up. In this episode, we cover: • Why eating less can actually stall fat loss over time• How metabolic adaptation changes “calories out” (even if nothing else changes)• The under-fueling pattern that looks “healthy”… but backfires• Why blood sugar instability leads to cravings, crashes, and fat loss resistance• How stress and nervous system state influence your ability to lose weight• The all-in → off pattern that keeps you stuck• Why the scale can stall (or go up) even when progress is happening• When exercise becomes a stress signal instead of a fat loss signal• The difference between losing weight… and building something you can sustain This episode isn’t about pushing harder. It’s about understanding what your body is responding to behind the scenes. Because when those signals change…your results start to change with them. 🎁 Free Resource: The Clean Eating Trap If this episode resonated with you, I created a simple guide that walks through the exact patterns that keep people stuck, and how to start stabilizing them. Download it here:🔗 [Get the Free Guide] 📲 Follow the Root Cause Rx Podcast Follow the show so new episodes automatically show up in your feed. ⭐ Enjoying the podcast? A quick rating or review helps more people find the show—and helps this message reach someone who’s been feeling stuck. 🩺 Work With Me 1:1 If you’re dealing with stubborn weight, fatigue, or inconsistent progress despite doing everything right, this is exactly what I help people work through. Book a free 15-minute discovery call with me. 💊 Supplements I Trust Access my Fullscript dispensary for practitioner-grade supplements I use in clinic: 🔗 Get 15% off the supplements I recommend (Discounts applied automatically)

    35 min
See All (28)

Ratings & Reviews

5
out of 5
2 Ratings

About

Tired, bloated, burned out — and your doctor says you’re fine? You’re not broken. You’re just misunderstood. The Root Cause Rx is your no-fluff guide to functional medicine that actually makes sense. Hosted by Dr. Nate Fulton, NMD — dad of 3, mitochondria nerd, and root-cause detective — this show breaks down fatigue, hormones, gut health, inflammation, and metabolic chaos in plain English. Real talk. Real labs. Real answers. Because “normal” isn’t always optimal — and you deserve better.

Information

  • Creator
    Dr. Nate Fulton
  • Years Active
    2025 - 2026
  • Episodes
    28
  • Rating
    Clean
  • Copyright
    © Dr. Nate Fulton
  • Show Website
    The Root Cause Rx

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