RACHEL SCHEER NUTRITION PRESENTS
LIVE MASTERCLASS NovemBEr 18TH, 5:30pm CST - $27
RACHEL SCHEER NUTRITION PRESENTS
LIVE MASTERCLASS November 18th, 5:30pm CST - $27
RSN INSTITUTE · ADVANCED CLINICAL PATHWAYS
MCAS & Histamine
MASTERCLASS
Why you (or your clients) have weird symptoms no one can explain even when labs come back "normal"
Join Rachel Scheer LIVE as she presents on Mast Cell Activation Syndrome and histamine related symptoms so that you can get to the root of you (or your clients) chronic health isses!
Live Masterclass - Live Q&A Session
RESERVE YOUR SEAT
Save my spot
Join us live on this 2 HOUR live training + Q&A to learn how MCAS & Histamine could be the root cause of the chronic health issues you've been trying to solve
Live transmission includes real-time clinical Q&A, comprehensive case studies, and real world application.
LIVE MASTERCLASS November 18th, 5:30pm CST - $27
RSN Accreditation
RSN INSTITUTE IS ACCREDITED BY AANWP · ANWPB · AANWC
SOUND FAMILIAR?
Is this you?
You've become the person who reacts to things.
Foods you ate your whole life. The supplement that was supposed to help. A new laundry detergent. Someone's perfume in an elevator. A glass of wine you used to be fine with. The weather changing. A medication that works fine for everyone else.
Your list of safe things keeps getting shorter, and nobody can tell you why.
And you still feel like this:
Anxiety or panic that shows up out of nowhere — no thought behind it, no trigger you can name
Bloating, reflux, or nausea that moves around — bad for a week, gone for two, back again
Flushing, itching, or hives — sometimes. Never when you're at the doctor's office
You react three days after the thing you reacted to — so you can never figure out what did it
Dizziness, temperature swings, nights where sleep won't come
Your body feels permanently on high alert — like it's bracing for something
You've probably been told it's stress. Or anxiety. Or IBS. Or that you just have allergies. Or that nothing's wrong at all.
THE PART NOBODY EXPLAINS
It isn't thirty separate problems.
It's one.
01 / UnDERSTANDING ALLERGIES
You're Not Developing New Allergies
Allergy testing keeps coming back negative because most of these reactions aren't allergies — they run through a different mechanism entirely, one standard testing isn't designed to catch.
02 / Threshold & capacity
It's A Threshold, Not A List
Your body has a capacity for handling this stuff. Under it, you're fine. Near the top, small things tip you over. That's why the same meal is fine on Tuesday and wrecks you on Friday — and why you'll never find the pattern by staring at what you ate.
03 / SYSTEMIC CROSS-TALK
Everything Counts Toward The Same Total
Food, yes. But also stress, poor sleep, hormones, barometric pressure, an infection you're still carrying, whatever's off-gassing in your bedroom. Same bucket. That's why your triggers keep moving.
04 / Timing
The Timing Lies To You
Some reactions hit in seconds. Others show up two or three days later, long after you've stopped connecting them to anything. So you blame the wrong thing, cut the wrong food, and get nowhere.
Once you can see it as one system instead of thirty symptoms, the advice that didn't work starts to make sense — and so does what to do instead.
THE TRAINING
What we'll walk through
Five things you've been told about histamine that aren't true
Starting with the biggest one — that histamine is the whole story.
Your histamine bucket
Three inputs, two drains, and why the same meal is fine on Tuesday and wrecks you on Friday.
Histamine intolerance or MCAS?
Two different problems with nearly identical symptom lists — and the one question that separates them faster than any lab does.
The full-body symptom map
Every system histamine touches, so you can finally see why your symptoms never seemed related.
Pharmacological & Targeted Nutraceutical Stabilization
Layered stabilization strategies coordinating H1/H2 antagonism, cromolyn sodium, bio-flavonoid polymers (luteolin/quercetin), and microdosed mast cell regulators.
The four part plan
The sequence that actually works — and why the order matters more than the ingredients.
Live Q&A
Bring Your Questions
FIT CHECK
Who this is for
This training is open to practitioners AND to people navigating their own histamine symptoms.
IDEAL PARTICIPANT PROFILE
Come if you are
EXPECTATION MANAGEMENT
Skip it if you want
YOUR INSTRUCTOR
Rachel Scheer
B.S. NUTRITION & DIETETICS · FUNCTIONAL MEDICINE PRACTITIONER · FOUNDER, RSN INSTITUTE
Rachel Scheer is a certified functional medicine nutritionist and founder of Rachel Scheer Nutrition (RSN), specializing in root-cause clinical resolution for complex gut-immune disorders, mast cell activation, and histamine intolerance.
Her clinical methodology was forged through personal crisis: after facing severe gastrointestinal failure and being told total colectomy was her only remaining medical path, she engineered a precise, biology-first recovery protocol. Today, her clinical team has guided over 5,000 patients out of chronic reactivity through advanced mucosal restoration and mast cell stabilization.
Over 5,000 chronic digestive and immune cases resolved clinically
Author, international clinician educator, Founder of the RSN Institute of Functional Nutrition
ONE MORE THING
You don't have to react to
everything forever
Your list of safe things can get longer again. Seats are capped so questions actually get answered, and you'll get the replay either way.
LIVE Masterclass • Live Q&A • Clinical Protocols Included
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