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Live webinarDate and time announced in your welcome email
For women who know something has shifted.

Understand the Real, Findable Reasons Behind Your Brain Fog

A free live webinar with Keri Thorn, MD: the causes conventional medicine almost never looks for, and why they are most fixable when caught early.

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Keri Thorn, MD.
Keri Thorn, MDInitial Consultation · Patients in MT, AZ, AL, and OH
Inside the free training

Learn What the Live Webinar Covers

Why your labs keep coming back normal

Conventional labs are built to catch disease, not early dysfunction. Why everything can look fine on paper while your own mind tells you something has shifted.

The clues most doctors never ask about

Mold and water-damage exposure, extended high-stress periods, gluten patterns, dental history, family patterns. Where the real investigation starts.

The window where this is most reversible

Between 'something feels off' and 'something is officially wrong' there is a window where the most reversible work can be done. Almost nobody works there. Dr. Thorn does.

What finally explains it

Get an Investigation, Not Another Guess

Celiac disease at 30, after years of being told it was just a virus: three months gluten-free and the fog lifted. A systemic crisis later on, when the workup 'looked fine' and healing only began when she changed the life, not just the labs.

And years after that, a hidden cause most physicians never look for: mold toxicity. Identified, treated, clarity returned.

That is why the investigation never stops at the first answer. One patient in her early 50s arrived with years of stress, a celiac diagnosis she didn't know she had, and undetected mold exposure. Investigating all three, not just one, is what changed things for her. There is often more than one thread to pull.

A rack of laboratory test tubes ready for analysis.
Keri Thorn, MD.
Who you would be working with

Work With a Physician Who Has Been the Patient

Keri Thorn, MD. Three decades in medicine, and three times a patient whose labs came back normal.

MD, board certified in emergency medicine30 years in medicine, 7 of them in functional medicine, working in the window conventional care skips.
Bredesen Protocol certifiedAnd trained in functional medicine by the Institute for Functional Medicine.
Licensed in four statesSeeing patients in Montana, Arizona, Alabama, and Ohio.

Dr. Keri Thorn has been a valuable addition to our Emergency Department. Her over 20 years of experience, wealth of knowledge, compassionate, and holistic approach to medicine has been inspiring. I was very excited to learn that she took that knowledge and experience and added additional training in functional medicine.
Emergency Department colleague, MPAS, PA-C
We have had multiple medical issues with our young daughter. As far back as I can remember Dr. Thorn has been there to listen to our concerns and offer much-needed support. Dr. Thorn continues to be compassionate and patient when listening to concerns. We are very grateful to have her as part of our family medical care.
Mother of a longtime patient

Each reflection above is one person’s experience with her practice. Every situation is different, which is exactly why the work starts with your history.

From 'everything looks normal' to answers you can act on

Functional Medicine Center of Montana · Patients in MT, AZ, AL, and OH

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Functional Medicine Center of Montana · Patients in MT, AZ, AL, and OH

Keri Thorn, MD is a physician practicing functional medicine, licensed to see patients in Montana, Arizona, Alabama, and Ohio. Everything on this page and in the webinar is educational only. It is not medical advice, it does not diagnose, treat, or cure any disease, and it is not a substitute for care from your own physician. No outcome is guaranteed, and individual results vary.

© 2026 Functional Medicine Center of Montana. All rights reserved.