Courses & Education
Explore Our Courses & Educational Programs
Practical education on mold, nutrition, immune health and functional lab interpretation from Dr. Margaret Christensen, MD and Dr. Gail Clayton, DCN — for patients, motivated learners and practitioners.
Choose Your Path
Patient Education
Start with the foundations
Practical, step-by-step education on nutrition, detox and everyday strategies for people affected by toxic mold exposure.
Advanced Learning
Go deeper
Explore how mycotoxin exposure affects immune function, mast cells and autoimmunity, or join our group education and support program.
Practitioner Education
Clinical education
Professional education in mold illness, mast cell disorders, autoimmunity and functional biochemistry, including Organic Acids interpretation.
Courses & Programs
Self-paced courses, guides and programs created by Drs. Christensen and Clayton.
Patient Education
Mold Detox Diet Course
Practical, step-by-step dietary education for people affected by toxic mold exposure: 14 video lessons on toxic load, foods to avoid and common detox diets. Includes the COVID Fallout e-guide download.
$59 · 90 days of access
Advanced Learning
Mold, Mast Cells & Autoimmunity
Graduate-level education on how mycotoxin exposure affects immune function, mast cells and autoimmunity, in 7 animated video modules. For practitioners and motivated learners.
$296 bundle · includes both courses · 365 days of access
Group Education & Support
Mentored Healing
Group education and support for people navigating complex chronic illness. Join the waitlist to be the first to know when enrollment opens.
E-Guide
Hormonal Havoc: The COVID Fallout & How to Fix It
Dr. Christensen's e-guide with key summary points, protocols and action steps for patients and practitioners navigating post-COVID health concerns.
$17 e-guide
Practitioner Training
Organic Acids & Amino Acids Education
Practitioner training in Organic Acids and Amino Acids test interpretation from Dr. Gail Clayton, with real-world case studies.
Detox Program
10-Day Detox Program
A guided 10-day detox program for patients, developed from years of clinical experience.
$17
Free Educational Resources
Start learning today with free guides, assessments, articles and webinar replays. For short reads, including a free ebook and Kindle guides, visit our Books & Guides page.
Free Master Class
Natural GLP-1 Stimulation Master Class →
A free master class from Drs. Christensen and Clayton, with the replay and slides to review at your own pace.
Free Download
See whether your symptoms line up with those commonly associated with mold exposure, and share it with your practitioner.
Free Download
A questionnaire to help you ask the right questions about histamine and mast cell activation.
Free Articles
Mold & Biotoxin Learning Center →
Educational articles on mold illness, detoxification, nutrition and recovery.
Free Articles
Patient-friendly Long COVID education: what research shows, what is still being studied, and practical articles.
Webinar Replays
The Doctors Are In — Replay Library →
Watch replays of our live educational webinars with Drs. Christensen and Clayton.
Meet Your Educators
A physician and a clinical nutritionist who teach the clinical reasoning behind complex chronic illness.
Dr. Margaret Christensen, MD
MD, FACOG, IFMCP, ABOIM, CFMHC
Dr. Christensen is a physician, functional and integrative medicine practitioner, and women's health expert. A longtime Institute for Functional Medicine faculty member, she has spent years teaching clinicians and caring for people with complex chronic illness, including mold and biotoxin-related conditions. She hosted two Toxic Mold Summits featuring more than 80 expert interviews.
Dr. Gail Clayton
DCN, CNS, MS, RPh, LDN
Dr. Clayton is a former clinical pharmacist of more than 25 years who pursued advanced training in clinical and functional nutrition. She teaches Functional Biochemistry of Nutrition at the University of Bridgeport, is the author of multiple books on Organic Acids interpretation, and leads a BCNS-approved Organic Acids course for practitioners.
What Practitioners Are Saying
Mold Detox Diet Course
“Transformational! This course is an absolute imperative for anyone who has known or suspected mold illness, which is a serious health condition. Dr's. Clayton & Christensen expertly guide you, in simple steps, through what is needed to recover.”
— Dr. Cheryl Winter, DCN, FNP-BC, RDN, IFMCP
Mold Detox Diet Course
“After many styles of diets, here comes one based on science and not fashion or popularity. Dr. Gail creates her menus with the immune system and good nutrition in mind. Food as medicine is truly one of the main benefits.”
— Dr. Beatriz Gallagher, CNS, PhD
Mold, Mast Cells & Autoimmunity
“I give this course 6 stars on a 5 star scale. I was able to implement what I learned in my practice immediately after I binge-watched it like a Netflix series. There is so much: practical information, clinical pearls, and tools.”
— Sharon Yeh, PharmD, MS, CNS
Professional Supplements
Our Fullscript Dispensary
Browse the curated supplement collections from Drs. Christensen and Clayton through our Fullscript dispensary.
These supplement collections are curated educational resources. Purchases made through our Fullscript dispensary may provide compensation to our practice. Supplements are not substitutes for individualized medical care.
Our courses and resources are provided for educational purposes only and are not intended as medical advice for any individual. They are not a substitute for diagnosis or treatment by a qualified healthcare provider. Practitioners should base clinical decisions on their own judgment, scope of practice, and each patient's individual needs.