Mastering MCAS
in practice
Mastering MCAS is a clinician-facing course on the foundations of diagnosing and managing mast cell activation syndrome. Evidence-informed, patient-centered, and honest about where the evidence is still thin.
It blends pharmacologic and integrative strategies without taking sides, because in practice, neither one is enough on its own. Designed for healthcare providers who see MCAS patients and want a solid clinical-literacy baseline.
$197 lifetime · Included with Wayfarer membership ($32/mo)
The clinical literacy gap on MCAS
Most clinical training covered mast cells in a single slide about allergy or anaphylaxis. MCAS sits in a gap: it's not classic allergy, it's not tryptosis, and the diagnostic criteria themselves are contested between Consensus 1 and Consensus 2.
Patients arrive symptomatic, knowledgeable from online sources, and often already trying things. The clinician's job is to bring structure, validate what's reasonable, redirect what isn't, and know when pharmacologic escalation is appropriate. This course is the clinical literacy foundation for that job.
What you'll walk away with
By the end of the course, you will be able to:
- Apply the MCAS diagnostic criteria (Consensus 1 vs Consensus 2) and name where they disagree.
- Build a practical differential that separates MCAS from histamine intolerance, mastocytosis, and other mimics.
- Construct a stepwise management plan blending dietary, pharmacologic, and integrative interventions.
- Discuss H1/H2 blockers, mast cell stabilizers, and biologics (Dupixent, Xolair) with clinical accuracy.
- Use natural agents in a way that is evidence-informed rather than reflexive.
- Sit a cumulative exam and receive a completion certificate suitable for CE self-report.
What's in the course
Three teaching units with quizzes, plus a cumulative exam and certificate at the end.
- 01
Introduction
Welcome, course outline and objectives, and the instructor framing for how to use the course.
- 02
Unit 1: MCAS Criteria and Differential Diagnosis
Diagnosis of mast cell activation syndrome. Which criteria to apply, when, and why the debate between Consensus 1 and Consensus 2 matters clinically.
- 03
Unit 2: Basic Management Strategies
Three subunits. Dietary interventions that actually have evidence. Pharmaceutical strategies, including H1/H2, mast cell stabilizers, and biologics. Natural agents, handled honestly.
- 04
Wrapping Up
Course review, cumulative exam, certificate, and continuing-education resources for self-reported CE credit.
Who's teaching
I'm Dr. Joyce Knieff, ND, LAc. I see MCAS patients daily in clinic at Yggdrasil Naturopathic Medicine in Minnetonka, Minnesota, and I serve as Vice President of the Minnesota Association of Naturopathic Physicians.
I built this course because clinician-facing MCAS education was either too superficial (a paragraph in an allergy chapter) or so specialized it was inaccessible. This sits in the middle: clinical-literacy depth for a generalist provider who wants to be a useful referral partner.
Questions people ask
Who is this course for?
Primarily practicing clinicians: NDs, MDs, DOs, NPs, PAs, RNs, pharmacists, and RDs who see MCAS patients or expect to. Curious clinicians-in-training are welcome. Patients who want the clinical depth rather than the patient-facing version can also take it, but it is written for a provider audience.
Does it offer CE credit?
The course is structured to support CE self-reporting and provides resources for that process. It is not currently pre-approved for a specific licensing body. Check your licensing board's requirements for self-reported continuing education.
Can I try a lesson before buying?
Yes. MCAS Fundamentals and Diagnostics is the first lecture from this course, offered free. It covers the diagnosis material from Unit 1. If the teaching style works for you, the full course goes further.
Is this the same as the September 2026 flagship MCAS program?
No. This is the clinician-facing self-paced course. The September 2026 program is the patient-facing 12-week live cohort (Stabilization and Sequencing Framework). Different audience, different depth, different format.
How long does it take?
Self-paced. Most clinicians complete it in 4 to 6 hours of focused time. Lifetime access, so you can revisit sections as your cases call for it.
Build a clinical-literacy baseline you can stand on.
MCAS patients deserve a clinician who can hold the uncertainty without abandoning the science. This course is a practical foundation for being that clinician.
$197 lifetime · Included with Wayfarer membership ($32/mo)