The mind and the body are always inextricably connected.

Here’s the truth: multiple food sensitivities are rarely about the food alone. And if you’re eating in fight-or-flight, you’re physiologically set up to react before the first bite even hits your stomach.

This episode connects gut-immune mechanisms with nervous system reality. Erin walks through what actually drives multiple food sensitivities from the body up and the mind down, and where she gets hot to trot: the expectant state. She explains why fear-based eating can amplify symptoms and how belief alone can shift physiological response.

If you’ve been stuck in restriction cycles or reacting to “everything,” this will help you stabilize instead of spiraling.

1. The two vitamins that can REALLY help to stabilize the immune system if we are reacting to a lot of foods
2. Dr. Alia Crumb’s milkshake study that proves belief can shift hormone output and hunger signaling
3. How overactive dendritic cells act like “Pac-Man” in your small intestine and flag too many foods for destruction
4. Erin’s recommended pre-meal practices that can shift Secretory IgA levels and improve tolerance

Resources mentioned:

The Funk’tional Nutrition Academy Open House kicks off March 11th. Join us for FREE live classes.

Applications are now open for Funk’tional Nutrition Academy, our 14 month clinical mentorship + training program.

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

Join the waitlist for Manifest Your Health. Doors open in the spring!

Apply to work with us 1:1 here.

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

https://www.thefunktionalnutritionist.com/podcast/401-food-sensitivities

Check out The Funk’tional Nutritionist: Website | Instagram

Organifi supplement powder (save 20% on your order with code FUNK)

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

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

It’s been EIGHT years of The Funk’tional Nutrition Podcast and 400 episodes of consistency. If you’re waiting to “feel ready”, certified enough, niche enough, confident enough, and your nervous system is fried from comparison and perfectionism… this solo AMA from Erin is for you.

Erin is getting deep in the trenches about how the podcast started, the pivots along the way, identity shifts, primary parenting, what it’s really like to work alongside her husband, and the uncomfortable truths about building a values-driven business over time.

This episode is jam-packed with reminders that perfection is not a prerequisite for growth. Keep showing up, put in the reps, and have the willingness to “go ugly” early.

1. The platform Erin not-so-secretly is launching as a “no-niche” space
2. Why going “ugly early” builds clinical confidence faster than over-preparing ever will
3. What actually changes when you move from solopreneur to leading a salaried team with benefits and 401Ks
4. The behind-the-scenes tension of growing a podcast in a celebrity-dominated industry
5. How Erin and her husband Scott navigated parenting and redefining who carries the financial load

Resources mentioned:

The Funk’tional Nutrition Academy Open House kicks off March 11th. Join us for FREE live classes.

Applications are now open for Funk’tional Nutrition Academy, our 14 month clinical mentorship + training program.

Are you a practitioner? Get your exclusive invitation to the FNA Open House.

Subscribe to Erin’s Substack for a no-nonsense & no-niche space about health, entrepreneurship, and manifestation.

Erin also references these episodes:

Episode 399: How To Stand Out as a Functional Medicine Clinician in an “Oversaturated” Market

Episode 325: How To Get Hired as a Functional Medicine Practitioner

Episode 307: Starting a Business From Scratch

Episode 279: How Do I Get Clients?

Apply to work with us 1:1 here.

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

https://www.thefunktionalnutritionist.com/podcast/400-erin-holt-ama

Check out The Funk’tional Nutritionist: Website | Instagram

Organifi supplement powder (save 20% on your order with code FUNK)

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

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

Everyone says the functional medicine space is “oversaturated.” But what are we actually seeing? And what qualities make up a fantastic clinician?

Erin is offering a peek behind the curtain into her most rigorous practitioner hiring process yet, including what consistently showed up in applications, and all the sneaky clinical skill gaps she and Rachel Heintz, MS, RDN see that are holding practitioners back.

She shares why nutrition foundations matter (but aren’t enough on their own), what real lab discernment looks like in complex cases, and why immune dysregulation requires a full-bodied approach.

If you want to deliver care with more nuance, confidence, and a deeper systems biology lens, this is exactly why the Funk’tional Nutrition Academy (FNA) exists. Open enrollment starts March 1st!

In this episode:

1. The biggest clinical skill gaps Erin and Rachel consistently see in practitioner applications
2. What lab discernment really looks like and how to decide what you need before moving forward
3. The role mentorship plays in building confidence and shining a flashlight without punching above your clinical weight
4. What happens when you niche too early and grow inside a more unsustainable clinical silo
5. The clinical support you’ll get inside of FNA, and why you should apply for the spring cohort

Resources mentioned:

Are you a practitioner? Get your exclusive invitation to the FNA Open House.

Applications are now open for Funk’tional Nutrition Academy, our 14 month clinical mentorship + training program.

4-Day Autoimmune Practitioner Intensive Training

Apply to work with us 1:1 here!

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

https://www.thefunktionalnutritionist.com/podcast/399-fna-practitioners

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)

If you’ve ever felt like your nervous system is constantly jacked up and running on pressure, urgency, and adrenaline, this episode is a vulnerable deep dive into why that happens.

Erin is taking you inside what nervous system re-patterning and brain rewiring actually look like through the lens of a deadline-driven season where pushing harder led to getting sick and realizing she couldn’t keep forcing her way through anymore.

She explores how predictive patterns form, why hustle can “work” while still keeping your body stuck in fight-or-flight, and why true healing often requires writing yourself a permission slip.

1. The moment Erin realized she was teaching regulation from a completely FRIED nervous system
2. How subconscious “predictive patterns” lock you into stress and the same symptoms on repeat
3. The comment Erin’s integrator made that exposed how much pressure she was putting on herself
4. The uncomfortable choice Erin made that FINALLY interrupted the pattern and changed everything

Resources mentioned:

Join the waitlist for Manifest Your Health. Doors open in the spring!

Applications are now open for Funk’tional Nutrition Academy, our 14 month clinical mentorship + training program.

Apply to work with us 1:1 here.

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

https://www.thefunktionalnutritionist.com/podcast/398-nervous-system

Check out The Funk’tional Nutritionist: Website | Instagram

Organifi supplement powder (save 20% on your order with code FUNK)

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

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

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

Bon Charge (Use code FUNK to save 15%)

Starting a gut healing protocol sounds straightforward until symptoms flare, digestion slows, or your skin freaks out. Do you protocol harder? Do you completely stop? Or is there a middle ground?

In this episode, Erin and TFN Practitioner Nicole Antes are breaking down what die-off (aka a Herxheimer reaction) actually is, why it can feel downright gnarly, and how to tell the difference between a normal detox response and a sign your body needs more support.

You’ll learn about the most common die-off symptoms and why mineral status matters much more than you realize.

In this episode:

• Why hydration can make detox symptoms worse if your mineral status isn’t addressed first
• The difference between normal die-off and a sign your body is asking you to slow way down
• How constipation amplifies skin flares, fatigue, and brain fog during gut protocols
• The overlooked role of bile flow and liver support in clearing toxins 
• When binders are a powerful tool, AND when they’re the wrong move that adds more stress to your system

Resources mentioned:

Episode 393: 5 Things You Need to Know Before Starting a Gut Healing Protocol

Apply to work with us 1:1 here!

Applications are now open for Funk’tional Nutrition Academy, our 14 month clinical mentorship + training program. 

Join the waitlist for Manifest Your Health.

Order The Gut Panel.

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

https://www.thefunktionalnutritionist.com/podcast/397-herxheimer-reaction 

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

Bon Charge (25% discount through the end of December)

Constant stimulation and social media algorithms are draining our life force every single day and keeping us stuck in cycles of nonstop scrolling and reactivity. So what does that mean for your energy, your focus, and your creativity? And how do we interrupt that pattern?

You’ll learn how boredom (yes, boredom!) is one of the most unglamorous, but powerful tools for resetting your nervous system, sparking creativity, and reclaiming your energy. Erin is also sharing the EXACT experiments she’s playing with right now, from morning phone boundaries to intentional mind-wandering, and how small shifts in attention can open up a totally different way of moving through your day.

• How social media and doomscrolling hijacks your dopamine and trains your brain to be reactive
• Why constantly “optimizing” your health or habits can backfire when your nervous system is overloaded
• How daydreaming and being bored on purpose can give you a creative edge
• The worst thing you can do when you wake up in the morning, and how to interrupt the pattern
• What types of accounts Erin has been intentionally unfollowing on social media

Resources mentioned:

Applications are now open for Funk’tional Nutrition Academy, our 14 month clinical mentorship + training program.

Apply to work with us 1:1 here!

Join the waitlist for Manifest Your Health

Erin’s two favorite books on creativity: Big Magic by Elizabeth Gilbert and The Creative Act by Rick Rubin.

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

https://www.thefunktionalnutritionist.com/podcast/396-energy 

Check out The Funk’tional Nutritionist: Website | Instagram

Organifi supplement powder (save 20% on your order with code FUNK) 

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

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

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

Bon Charge (Use code FUNK to save 15%)

If your “normal” winter cold has a habit of spiraling into a full-blown sinus or ear infection, this episode is your prevention wake-up call so you can stop the cycle. Erin is sharing her favorite strategies that are simple and unglamorous, but will keep things moving.

You’ll learn why dry air is not your friend (hello winter and airplanes!), how a humidifier can help keep mucus thin, and why nasal a neti pot or even just saline spray is one of the easiest ways to physically rinse out irritants and pathogens.

Erin also offers an important PSA on humidifiers you won’t want to miss.

In this episode:

• Why dry air can slow your sinuses’ natural clearing system and let pathogens linger longer
• The nightly habit Erin forgot to do, and why it matters so much for keeping mucus thin and drainage moving
• Neti pot vs. saline spray and how each option can help physically remove viruses, bacteria, allergens, and pollutants
• The “helpful but can backfire” list of add-ons to consider when you’re prone to infections after a cold
• The humidifier warning most people miss and the quick way to spot when humidity is getting too high

Resources mentioned:

Erin’s Honeywell Germ Free Cool Mist Humidifier and Miro Humidifier

Digital Hygrometer

Apply to work with us 1:1 here!

Applications are now open for Funk’tional Nutrition Academy, our 14 month clinical mentorship + training program.

Join the waitlist for Manifest Your Health.

Order The Gut Panel.

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

https://www.thefunktionalnutritionist.com/podcast/395-sinus-health 

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

Bon Charge

If you’ve been taking in alllll the health, wellness, business, and self-improvement advice, this episode is your permission slip to start curating your own intentional “board of directors.” These are the people who will help you steer the ship and hold the line for your vision when you want to default into old patterns.

You’ll learn Erin’s journaling exercise for filtering your influential inner circle into four categories: candle blower-outers, the safety police, light protectors, and expanders, so you can quickly spot who’s fueling your growth and who might be holding you back.

Erin also shares how she chooses truth-tellers and experts for her own board (some she knows, some she pays, some don’t even know her!), plus practical ways to “meet” with your board regularly.

Even if you are not a CEO of a company, you are the CEO of your LIFE, and the right board can help you stop playing small and start moving forward.

1. How Erin runs a regular “board meeting” with herself to evaluate decisions, track growth, and stay aligned with the life she’s intentionally building
2. How to identify the “candle blower-outers” who feel subtle, but consistently dim your ambition and confidence
3. Why the “safety police” mean well, but can still keep you tethered to what’s familiar instead of what you want
4. The difference between “light protectors” who love you and true expanders who prove your next level is possible
5. How asking “where is my ship pointed right now?” can immediately reveal which voices deserve decision-making power

Resources mentioned:

Applications are now open for Funk’tional Nutrition Academy, our 14 month clinical mentorship + training program.

Apply to work with us 1:1 here!

Join the waitlist for Manifest Your Health

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

https://www.thefunktionalnutritionist.com/podcast/394-board-of-directors

Check out The Funk’tional Nutritionist: Website | Instagram

Organifi supplement powder (save 20% on your order with code FUNK)

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

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

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

Bon Charge (Use code FUNK to save 15%)

We’re bringing it back to the gut!

If you’ve ever started a gut protocol and thought, “Why do I feel worse?” or “Why did this work… and then completely fall apart?” this episode is for you. Erin is sharing what a gut protocol is, why going straight into antimicrobial “kill” mode can backfire, and how ignoring the body’s internal environment can lead to flare-ups and stalled healing.

You’ll also learn Erin’s five step B.L.A.S.T framework to make your gut protocol results stick: think Bowels, Liver, Adrenals, Secretory IgA, and Trauma.

Your nervous system has EVERYTHING to do with gut results, and a more supportive, whole-body approach helps the body do what it already knows how to do: heal.

In this episode:

1. Why jumping straight into antimicrobials is a red flag and can overload your system
2. What Erin’s sudden wine reactions, hives, and crushing headaches reveal about histamine and gut imbalance
3. How constipation and sluggish detox pathways can turn a healing protocol into nonstop reactions and flare-ups
4. Why chronic stress hormones sabotage gut immunity, digestion, and your ability to clear infections
5. How unresolved trauma and a dysregulated nervous system can keep the body stuck in survival mode

Resources mentioned:

Apply to work with us 1:1 here!

Applications are now open for Funk’tional Nutrition Academy, our 14 month clinical mentorship + training program.

Join the waitlist for Manifest Your Health.

Order The Gut Panel.

Listen to the TFN client case study episode with Meg O’Neill.

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

https://www.thefunktionalnutritionist.com/podcast/393-gut-healing-protocol

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

Bon Charge

If you achieved ALL of your 2026 goals, how would you feel? How would it change your life? This episode is going to flip everything you think you know about intention setting, and why it matters.

Instead of focusing on rigid goals or relying on willpower, Erin explains how aligning your 2026 intentions with who you want to become can naturally shape your choices around food, health, and daily habits.

It’s normal for discomfort, uncertainty, and old urges to creep in when you’re on the cusp of making big changes, but this is evidence that it’s working! You’ll also learn all about EFT (or tapping) as a tool to calm the nervous system, plus Erin’s most supportive frameworks you can return to long after the new year energy fades.

1. Why your brain hunts for evidence that your “I am…” story is true, and how that keeps recreating the same food patterns
2. The fork in the road moment that makes people quit in week two, and why feeling confused can mean the change is working
3. How to use future-self decision making so you stop waiting to feel ready before you act
4. The reason analytical, detail-focused people can get stuck in nutrition change, and how to be a needle-mover
5. A guided EFT tapping approach to loosen “I can’t” beliefs and replace them with capability, worthiness, and trust

Resources mentioned:

Apply to work with us 1:1 here!

Join the waitlist for Manifest Your Health

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

https://www.thefunktionalnutritionist.com/podcast/392-intention-setting

Check out The Funk’tional Nutritionist: Website | Instagram

Organifi supplement powder (save 20% on your order with code FUNK)

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

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

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

Bon Charge (Use code FUNK to save 15%)