Founder & CEO
Madison Ordway, FDN-P
Madison is the founder and CEO of Real Health Diagnostics and a certified Functional Diagnostic Nutrition Practitioner (FDN-P). She helps clients order appropriate functional panels and understand their results across gut and hormone health — and writes about functional testing for national and industry publications.
The credential, accurately
What FDN-P means — and what it doesn't.
A Functional Diagnostic Nutrition Practitioner (FDN-P) is a functional-health practitioner who has completed specialized training in functional lab interpretation — including DUTCH hormone panels and stool analysis like the GI-MAP.
It is not a licensed medical or physician credential. Madison is not a doctor, and functional testing does not diagnose, treat, cure, or prevent disease. What she does is help you order the right panels, read your reports with confidence, and turn data into informed questions.
Functional insight complements — it does not replace — conventional care. Madison encourages every client to share results with their primary healthcare provider.
How she works with clients
From intake to interpretation.
A measured, transparent process that puts data in your hands.
- 01
Review the intake
Madison reviews client intake forms to understand history, symptoms, and goals before any panel is ordered.
- 02
Coordinate the right panels
She helps coordinate appropriate functional-test orders — GI-MAP, DUTCH, or HTMA — through the family's testing properties.
- 03
Make the report make sense
Together you read the results — reference ranges, optimal zones, and patterns — and identify what to bring to your provider.
Outside the lab
A practitioner who lives it.
Madison's work is grounded in the same thing she asks of clients — an active, measured life. Most often, that means being outside on the West Coast.
On the trail 
Backcountry camp 
Snow days
As featured in
Published, cited, verifiable.
Madison's writing and expertise have been featured by national and industry publications. Each links to the original article.
- Women's JournalHow Poor Gut Health Affects Female Hormones, Cycles, and FertilityRead the article ↗
- US InsiderWhat Is the GI-MAP Test? A Complete Guide to At-Home Gut Health Testing in the US and CanadaRead the article ↗
- The Science TimesBeyond Basic Testing: How Comprehensive Stool Analysis (GI-MAP) Reveals Your Full Gut Health PictureRead the article ↗
- Healthcare Business TodayHidden Gaps: Why Canadians Are Turning to the GI-MAP Stool Test for Functional Gut Health AnswersRead the article ↗
Honorable mention: the St. Augustine Record's fishing report chronicled Madison amid the great speck spawn of January 2020. Yes, it's her. Functional lab work by trade — speckled trout by calling.
Honest answers
Frequently asked
No. Madison is a certified Functional Diagnostic Nutrition Practitioner (FDN-P), not a physician. She does not diagnose, treat, cure, or prevent disease. She helps clients order appropriate functional-test panels and understand their results, and she encourages clients to share findings with their primary healthcare provider.
A Functional Diagnostic Nutrition Practitioner is a functional-health practitioner who has completed specialized training in interpreting functional lab tests — including DUTCH hormone panels and stool analysis. It is a practitioner certification, not a licensed medical or physician credential.
Her practice spans gut and hormone health. She works with the GI-MAP stool test, the DUTCH hormone panel, and Hair Tissue Mineral Analysis (HTMA), helping clients turn complex reports into clear next steps — alongside, not instead of, conventional care.
Want to learn the tests behind the practice? Explore the testing portfolio →