The Funk'tional Nutrition Podcast

Do you ever notice how one tiny little symptom can send your brain into a full blown worst case scenario spiral?

In this solo deep dive, Erin is getting into the neuroscience of chronic symptom loops and how you can start rewiring those patterns through self-directed neuroplasticity.

She talks about the brain's negativity bias, fear circuitry, and the way your nervous system can become SO hypervigilant that even a perfectly normal body sensation can get flagged as a threat.

Erin also shares about her own experiences with autoimmunity, and why similar patterns can show up with IBS, fibromyalgia, MCAS, chronic fatigue, chemical sensitivities, and chronic pain.

P.S. Join Erin for her first-ever LIVE 5 Day Nervous System Reset, beginning November 12! For $27, you'll get 5 days of guided practices, 2 live classes with Erin, and lifetime access inside the Manifest Your Health app.

• What happens when fear, symptoms, and stress responses become your brain's default setting
• Why Erin says it's actually a GOOD sign when rewiring feels slow and clunky in the beginning
• What value tagging means, and why your brain might be putting little sticky notes on every symptom
• How Erin went from practicing pattern interrupts 5-6 times a day to no longer needing them

Resources mentioned:

Sign up for Erin’s $27 LIVE 5 Day Nervous System Reset, beginning November 12th.

Manifest Your Health is the neuroscience-backed membership that helps you regulate your nervous system, integrate the parts of you that keep you stuck, and become the version of yourself your body can actually heal as.

Subscribe to her Substack where Erin shares the (raw & unfiltered) BTS of her own business & life – so you can steal what applies to yours. All things health, wealth, ambition & manifestation.

Apply for 1:1 Support

Episode 429: How Your Nervous System Influences Your Health

Episode 431: Endo Uncovered Part 5: The Connection Between MCAS, Histamine & Endometriosis

FOR OUR FULL LIST OF LINKS + RESOURCES, HEAD TO:

https://www.thefunktionalnutritionist.com/podcast/432-rewire-chronic-inflammation

Check out The Funk’tional Nutritionist: Website | Instagram

Organifi Supplement Powder (save 20% on your order with code FUNK)

OneSkin (Use code FUNK for 15% off your first purchase)

LMNT Electrolyte Replenishing Powder (Use code FUNK and get a free sample pack with any purchase!)

Fullscript is Erin’s trusted, go-to source for ordering supplements.

What do mast cells, histamine, estrogen, and endometriosis all have in common? A whole lot more than you might think.

We're wrapping up the Endo Uncovered series with one of the most requested topics from Erin's Instagram community: the connection between mast cell activation syndrome (MCAS) and endometriosis.

In this episode, Erin and Rachel start with the basics (because what the heck is a mast cell, anyway?!) before getting into the very real connection between immune system dysregulation, histamine, estrogen, inflammation, and endometriosis symptoms, plus why MCAS can be so difficult to identify.

You’ll also hear a real client case study involving endometriosis, MCAS, mold exposure, elevated lead levels, gut dysbiosis, and methylation issues.

• What mast cells are, how they protect the body, and what happens when they keep releasing inflammatory chemicals
• The dangerous feedback loop that can amplify real physical symptoms
• What mold, heavy metals, chronic stress, infections, and histamine intake have to do with mast cell activation
• Why antihistamines can improve PMS and PMDD symptoms for some women

Resources mentioned:

Listen to Part 1, Part 2, Part 3, and Part 4 of the Endo Uncovered series.

Episode 429: How Your Nervous System Influences Your Health

Apply for 1:1 support here if you’re navigating painful periods, suspected or diagnosed endometriosis, gut symptoms, hormone issues, or inflammation.

Manifest Your Health is our neuroscience backed membership designed to help you reconnect with your body, regulate your nervous system, and finally break out of the symptom loop.

Want more of Erin?

Subscribe to her Substack where Erin shares the (raw & unfiltered) BTS of her own business & life – so you can steal what applies to yours. All things health, wealth, ambition & manifestation.

FOR OUR FULL LIST OF LINKS + RESOURCES, HEAD TO:

https://www.thefunktionalnutritionist.com/podcast/431-endo-series-part-5

Check out The Funk’tional Nutritionist: Website | Instagram

Organifi Supplement Powder (save 20% on your order with code FUNK)

OneSkin (Use code FUNK for 15% off your first purchase)

Qualia Creatine (get up to 50% off and an extra 15% off your first purchase with link + code FUNKS)

We’re back with Part 4 of the Endo Uncovered series, and this one is all about surgery. How to think about it, how to prepare for it, and what Rachel wishes more women knew before going in.

Erin and Rachel are talking through some of the biggest questions that come up when someone is considering endometriosis surgery: How do you choose a surgeon? What’s the difference between excision and ablation? Is a hysterectomy really a cure for endometriosis?

Rachel shares about her own endometriosis surgery process, why excision is considered the gold standard, hysterectomy nuance, and exactly how she prepared her own body before surgery, from reducing alcohol and prioritizing protein to increasing iron-rich foods, vitamin C, omega-3s, pelvic floor PT, strength training, walking, and strategic supplementation.

If you are considering endometriosis surgery, preparing for surgery, recovering from surgery, or trying to understand what questions to ask, this conversation will help you feel more informed and grounded.

• How your surgeon’s training and experience can influence recovery, outcomes, and recurrence risk
• The vitamin C-rich foods, omega-3s, ginger, turmeric, and liver-supportive options Rachel used before and after surgery
• The key difference between excision and ablation surgery
• Why Rachel significantly reduced alcohol before her surgery
• What’s coming next in the Endo Uncovered series: the MCAS, histamine, and endometriosis connection

Resources mentioned:

Manifest Your Health is the neuroscience-backed membership that helps you regulate your nervous system, integrate the parts of you that keep you stuck, and become the version of yourself your body can actually heal as.

Listen to Part 1, Part 2, and Part 3 of the Endo Uncovered series.

Subscribe to her Substack where Erin shares the (raw & unfiltered) BTS of her own business & life – so you can steal what applies to yours. All things health, wealth, ambition & manifestation.

Apply for 1:1 Endometriosis Support here if you’re navigating painful periods, suspected or diagnosed endometriosis, gut symptoms, hormone issues, or inflammation.

Order The Gut Panel to uncover the hidden root causes behind your “mystery” symptoms.

FOR OUR FULL LIST OF LINKS + RESOURCES, HEAD TO:

https://www.thefunktionalnutritionist.com/podcast/430-endo-series-part-4

Check out The Funk’tional Nutritionist: Website | Instagram

Organifi Supplement Powder (save 20% on your order with code FUNK)

OneSkin (Use code FUNK for 15% off your first purchase)

LMNT Electrolyte Replenishing Powder (Use code FUNK and get a free sample pack with any purchase!)

Qualia Creatine (get up to 50% off and an extra 15% off your first purchase with link + code FUNKS)

Fullscript is Erin’s trusted, go-to source for ordering supplements.

What does your nervous system have to do with your digestion, hormones, immune system, inflammation, sleep, symptoms, and healing? And is “regulating your nervous system” just another wellness buzzword?

Your nervous system is constantly scanning your internal and external world for cues of safety or threat. And when your body keeps perceiving threats (even when you consciously know you’re safe), it can keep you stuck in inflammation, immune activation, digestive dysfunction, and chronic symptoms.

In this episode, Erin explains why nervous system regulation requires both top-down and bottom-up work. Breathwork, meditation, and yoga can be amazing tools, but if you never address the beliefs, patterns, trauma, emotional suppression, people-pleasing, perfectionism, and subconscious threat signals underneath the dysregulation, the work may only go so deep.

• The gas pedal, brake pedal, and “optimal healing mode” nervous system states
• How chronic stress activation can impact thyroid function, fertility, sex hormones, blood sugar, sleep, and the gut barrier
• How subconscious beliefs, early programming, filters, and past experiences shape your nervous system
• Erin’s invitation into her 5 day nervous system reset before the holiday season

Resources mentioned:

Sign up for our 5 Day Nervous System Reset

Apply for 1:1 support here if you’re navigating painful periods, suspected or diagnosed endometriosis, gut symptoms, hormone issues, or inflammation.

Manifest Your Health is our neuroscience backed membership designed to help you reconnect with your body, regulate your nervous system, and finally break out of the symptom loop.

Episode 424: Your Default Mode Network, Your Identity & the Story Keeping You Sick

Want more of Erin?

Subscribe to her Substack where Erin shares the (raw & unfiltered) BTS of her own business & life – so you can steal what applies to yours. All things health, wealth, ambition & manifestation.

FOR OUR FULL LIST OF LINKS + RESOURCES, HEAD TO:

https://www.thefunktionalnutritionist.com/podcast/429-nervous-system-regulation

Check out The Funk’tional Nutritionist: Website | Instagram

Organifi Supplement Powder (save 20% on your order with code FUNK)

OneSkin (Use code FUNK for 15% off your first purchase)

Qualia Creatine (get up to 50% off and an extra 15% off your first purchase with link + code FUNKS)

You finally got the endometriosis diagnosis. Now what do you actually do after years of pain, dismissal, weird symptoms, confusing imaging, surgery, or being told everything looked “normal”?

While a diagnosis can feel validating, it can also bring a whole new wave of fear, especially around fertility, surgery, symptom management, and whether this condition is going to define the rest of your life.

In part 3 of the endo series, Erin and Rachel walk through the labs, nutrition, lifestyle shifts, gut support, hormone testing, nervous system work, and supplements they think about when supporting clients with endometriosis. Rachel also talks about excision surgery and why you still need a whole body approach.

• The two biggest questions Rachel hears after diagnosis: “Can I still have kids?” and “How do I manage this?”
• Why Rachel considers the DUTCH test a necessity for endometriosis, especially for hormone metabolism
• Why broccoli sprouts are the little overachievers of cruciferous vegetables
• How emotional suppression, people-pleasing, over-functioning, trauma history, and chronic stress can amplify symptom expression
• The supplement Rachel used after excision surgery that helped with her post-op period pain

Resources mentioned:

Manifest Your Health is the neuroscience-backed membership that helps you regulate your nervous system, integrate the parts of you that keep you stuck, and become the version of yourself your body can actually heal as.

Applications for the Fall 2026 cohort of The Funk’tional Nutrition Academy are now open! If you’re ready to become a certified functional health practitioner, apply now.

Listen to Part 1 and Part 2 of the Endo Uncovered series.

Episode 425: FNA Case Study: Stage Four Endometriosis, 8 Years of Infertility & a Natural Pregnancy

Subscribe to her Substack where Erin shares the (raw & unfiltered) BTS of her own business & life – so you can steal what applies to yours. All things health, wealth, ambition & manifestation.

Apply for 1:1 Endometriosis Support here if you’re navigating painful periods, suspected or diagnosed endometriosis, gut symptoms, hormone issues, or inflammation.

Order The Gut Panel to uncover the hidden root causes behind your “mystery” symptoms.

FOR OUR FULL LIST OF LINKS + RESOURCES, HEAD TO:

https://www.thefunktionalnutritionist.com/podcast/428-endo-series-part-3

Check out The Funk’tional Nutritionist: Website | Instagram

Organifi Supplement Powder (save 20% on your order with code FUNK)

OneSkin (Use code FUNK for 15% off your first purchase)

LMNT Electrolyte Replenishing Powder (Use code FUNK and get a free sample pack with any purchase!)

Qualia Creatine (get up to 50% off and an extra 15% off your first purchase with link + code FUNKS)

Fullscript is Erin’s trusted, go-to source for ordering supplements.

We’re back with Part 2 of the endometriosis series, and this one is personal.

Lead practitioner Rachel Heintz shares her own story with stage 4 deep infiltrating endometriosis. You’ll hear about the symptoms she didn’t realize were clues, the functional work that helped her feel dramatically better, and the surgery that revealed just how severe things really were.

Rachel walks through her timeline: going on birth control for acne, coming off the pill and experiencing debilitating periods, dealing with extreme allergies and histamine issues, living in a moldy apartment, and eventually discovering endometriosis in a pretty unusual location.

Erin and Rachel talk about why surgery is not a failure, why not every OB/GYN is an endometriosis expert, why getting another opinion can matter so much, and what Rachel’s excision surgery ultimately revealed.

• How birth control may have masked Rachel’s endo symptoms for years after she originally started it for acne
• Why Rachel believes mold exposure in a damp college apartment may have been a major immune and mast cell trigger
• Why untreated endo could have created bigger issues for Rachel’s bowels, kidneys, appendix, fertility, and overall health
• How Rachel is feeling 10 weeks post-op, with a smoother-than-expected recovery

Resources mentioned:

Applications for the Fall 2026 cohort of The Funk’tional Nutrition Academy are now open! If you’re ready to become a certified functional health practitioner, apply now.

Apply for 1:1 Endometriosis Support here if you’re navigating painful periods, suspected or diagnosed endometriosis, gut symptoms, hormone issues, or inflammation.

Order The Gut Panel to uncover the hidden root causes behind your “mystery” symptoms.

Want more of Erin?

Subscribe to her Substack where Erin shares the (raw & unfiltered) BTS of her own business & life – so you can steal what applies to yours. All things health, wealth, ambition & manifestation.

Manifest Your Health is our neuroscience backed membership designed to help you reconnect with your body, regulate your nervous system, and finally break out of the symptom loop.

FOR OUR FULL LIST OF LINKS + RESOURCES, HEAD TO:

https://www.thefunktionalnutritionist.com/podcast/427-endo-series-part-2

Check out The Funk’tional Nutritionist: Website | Instagram

Organifi Supplement Powder (save 20% on your order with code FUNK)

OneSkin (Use code FUNK for 15% off your first purchase)

Qualia Creatine (get up to 50% off and an extra 15% off your first purchase with link + code FUNKS)

We are officially kicking off the endometriosis series. In this first episode, Erin and Rachel Heintz, lead practitioner at The Funk’tional Nutritionist, are untangling one of the most misunderstood, underdiagnosed, and wildly dismissed conditions in women’s health.

Painful periods might be common, but that does not mean they should be normalized, trivialized, or ignored.

Erin and Rachel explain what endometriosis is, what conditions commonly overlap with it, why it is considered a chronic inflammatory whole-body condition, and how it can show up far beyond the uterus. Spoiler: we’re going inflammation hunting, and no, you do not have to just suck it up and suffer your way through being a woman!

• The difference between normal period discomfort and the kind of pain that should not be brushed off as “just cramps”
• Why recurring SIBO can be a clue that something deeper is driving the overgrowth
• How toxin exposure can drive or exacerbate painful periods and endometriosis symptoms
• The hopeful research Rachel shares around genetics, imaging, and the future of endometriosis diagnosis
• Obscure, less common symptoms that can still be part of the endo picture

Resources mentioned:

Manifest Your Health is the neuroscience-backed membership that helps you regulate your nervous system, integrate the parts of you that keep you stuck, and become the version of yourself your body can actually heal as.

Applications for the Fall 2026 cohort of The Funk’tional Nutrition Academy are now open! If you’re ready to become a certified functional health practitioner, apply now.

Subscribe to her Substack where Erin shares the (raw & unfiltered) BTS of her own business & life – so you can steal what applies to yours. All things health, wealth, ambition & manifestation.

Apply to work with us 1:1 here.

Order The Gut Panel to uncover the hidden root causes behind your “mystery” symptoms.

FOR OUR FULL LIST OF LINKS + RESOURCES, HEAD TO:

https://www.thefunktionalnutritionist.com/podcast/426-endo-series

Check out The Funk’tional Nutritionist: Website | Instagram

Organifi Supplement Powder (save 20% on your order with code FUNK)

OneSkin (Use code FUNK for 15% off your first purchase)

LMNT Electrolyte Replenishing Powder (Use code FUNK and get a free sample pack with any purchase!)

Qualia Creatine (get up to 50% off and an extra 15% off your first purchase with link + code FUNKS)

Fullscript is Erin’s trusted, go-to source for ordering supplements.

FNA graduate Alyssa Chavez had been trying to conceive for eight years. She had stage four endometriosis, debilitating periods, two rounds of IVF, a miscarriage, low AMH, and doctors telling her IVF was basically her only shot. But somewhere inside her, there was still this knowing: there has to be more than this.

In this episode, Erin sits down with Alyssa, to talk about the functional approach that helped her finally move the needle in her own body. Alyssa shares how learning to understand her gut, inflammation, immune system, environment, hormones, and bio-individual needs helped her go from painful periods and infertility to conceiving her baby girl naturally the SAME month she graduated from FNA!

Erin and Alyssa also talk about the bigger ripple effects of addressing your health, and how FNA helped her build a business on her own terms.

• How bloating, bowel changes, gut health, inflammation, and immune function became key pieces of Alyssa’s endometriosis puzzle
• Why 14 months is not “too long” if you’re learning to practice real holistic care
• How bio-individuality applies to your body, your clients, and the way you build your business
• What Erin means when she says her work is about “storying people into possibility”
• Why comprehensive, whole-person care matters even more in an era of AI-generated health advice

Resources mentioned:

EnrollmentApplications for the Fall 2026 cohort of The Funk’tional Nutrition Academy isare now open! If you’re ready to become a certified functional health practitioner, apply now.

Apply to work with us 1:1 here.

Connect with Alyssa on Instagram and her website, Aligned to Rise.

Want more of Erin?

Subscribe to her Substack where Erin shares the (raw & unfiltered) BTS of her own business & life – so you can steal what applies to yours. All things health, wealth, ambition & manifestation.

Manifest Your Health is our neuroscience backed membership designed to help you reconnect with your body, regulate your nervous system, and finally break out of the symptom loop.

FOR OUR FULL LIST OF LINKS + RESOURCES, HEAD TO:

https://www.thefunktionalnutritionist.com/podcast/425-endometriosis-case-study

Check out The Funk’tional Nutritionist: Website | Instagram

Organifi Supplement Powder (save 20% on your order with code FUNK)

OneSkin (Use code FUNK for 15% off your first purchase)

Qualia Creatine (get up to 50% off and an extra 15% off your first purchase with link + code FUNKS)

It’s no secret that stepping out of your typical day-to-day routine can be so expansive and help you realize how much possibility exists. It’s one thing to have the breakthrough, but it’s another thing entirely to bring that expanded identity back into your actual life, schedule, relationships, and nervous system.

In this episode, Erin talks about “default mode” and how the story you tell yourself about yourself can become the identity you keep living from.

This is a conversation about identity, healing, nervous system safety, parts integration, and the hardwired stories we keep reenacting without realizing it. Erin also shares a snippet from Manifest Your Health on rewriting your inner narrative, because action is what crystallizes change.

• How big clarity can drop in on vacation, retreat, or in a pattern interrupt, and then disappear when you return to real life
• The one question Erin asks herself every time when anchoring into a new identity
• How the brain uses old memories, beliefs, and predictions to keep recreating the same reality
• Why new experiences, new choices, and new inputs help your brain create a different default

Resources mentioned:

Manifest Your Health is the neuroscience-backed membership that helps you regulate your nervous system, integrate the parts of you that keep you stuck, and become the version of yourself your body can actually heal as.

Applications for the Fall 2026 cohort of The Funk’tional Nutrition Academy are now open! If you’re ready to become a certified functional health practitioner, apply now.

Subscribe to her Substack where Erin shares the (raw & unfiltered) BTS of her own business & life – so you can steal what applies to yours. All things health, wealth, ambition & manifestation.

Apply to work with us 1:1 here.

Episode 412: The Neuroscience of Reality: Why Change Doesn’t Stick

FOR OUR FULL LIST OF LINKS + RESOURCES, HEAD TO:

https://www.thefunktionalnutritionist.com/podcast/424-default-mode-network

Check out The Funk’tional Nutritionist: Website | Instagram

Organifi Supplement Powder (save 20% on your order with code FUNK)

OneSkin (Use code FUNK for 15% off your first purchase)

LMNT Electrolyte Replenishing Powder (Use code FUNK and get a free sample pack with any purchase!)

Qualia Creatine (get up to 50% off and an extra 15% off your first purchase with link + code FUNKS)

Fullscript is Erin’s trusted, go-to source for ordering supplements.

What labs should you actually be getting? Everyone and their mom is aware of the fact that we need a liiittle more data on our bodies, and we have the availability to get it. In this episode, Erin gives you a complete deep dive through the labs she thinks EVERY woman should ask for, as well as the markers that often get skipped.

Erin also covers cardiovascular and menopause risks, fasting glucose, and the functional labs her team uses most often in practice, including the GI-MAP stool test, DUTCH hormone testing, Wheat Zoomer, and toxin testing, plus when each one might make sense.

If you’re in your 30s, 40s, 50s, or anywhere near perimenopause, this is your reminder to get the data, understand the data, and use it to take action.

P.S. This week, Erin is teaching a 2-day masterclass for practitioners on how to support clients through a woman’s hormonal lifespan. Grab your ticket here!

• Why a CMP, CBC, and standard lipid panel are important, but still very much a starter pack
• ApoB, and why it’s a must-have marker if cardiovascular disease runs in your family
• What GGT can tell us about liver function, oxidative stress, toxin load, bile, and glutathione depletion
• The metabolic health markers Erin wants women tracking before menopause
• When a toxin panel might be the missing piece for chemical sensitivity, skin flares, liver markers, or symptoms that are not budging

Resources mentioned:

Applications for the Fall 2026 cohort of The Funk’tional Nutrition Academy are now open! If you’re ready to become a certified functional health practitioner, apply now.

Manifest Your Health is our neuroscience backed membership designed to help you reconnect with your body, regulate your nervous system, and finally break out of the symptom loop.

Order The Gut Panel.

Apply to work with us 1:1 here.

Want more of Erin?

Subscribe to her Substack where Erin shares the (raw & unfiltered) BTS of her own business & life – so you can steal what applies to yours. All things health, wealth, ambition & manifestation.

FOR OUR FULL LIST OF LINKS + RESOURCES, HEAD TO:

https://www.thefunktionalnutritionist.com/podcast/423-womens-labs

Check out The Funk’tional Nutritionist: Website | Instagram

Organifi Supplement Powder (save 20% on your order with code FUNK)

OneSkin (Use code FUNK for 15% off your first purchase)

Qualia Creatine (get up to 50% off and an extra 15% off your first purchase with link + code FUNKS)