Functional Medicine Center of Montana

Functional Medicine Center of Montana Dr. Keri Thorn, MD | Board-Certified Emergency Physician, IFM-Trained in Functional Medicine

Your labs are normal. You know something's still off.

I investigate the real causes of brain fog — not another guess, not another supplement stack.

When a tree's leaves start browning, you don't treat the leaves; you think about the roots. Do they need water or fertil...
08/13/2026

When a tree's leaves start browning, you don't treat the leaves; you think about the roots. Do they need water or fertilizer? Is it the soil that's feeding the tree?

The connection between your gut and brain is similar. Your gut is the root of your brain. Inflammation that begins in the gut doesn't stay there — it sends signals that enter the brain and can show up as fog, fatigue, and difficulty concentrating.

For years, I was told my gut symptoms were "probably just a virus," and the pattern repeated over and over. Over 20 years later, I learned I had Celiac disease — and once I removed the gluten trigger, my thinking cleared, and my mood improved, without me even realizing there was a problem.

This is exactly why I begin with the gut when I investigate brain fog. It isn't something that should be left until later.

— Dr. Keri Thorn, MD

You laugh it off.You walk into a room and forget why you’re there. You lose a word mid-sentence. You reread the same par...
08/11/2026

You laugh it off.

You walk into a room and forget why you’re there. You lose a word mid-sentence. You reread the same paragraph. You make a mental note to remember something… and then forget the note.

Every once in a while? That happens to everyone.

But when you start noticing that these moments are happening more often than they used to, it’s worth paying attention.

Your brain doesn’t exist in isolation. Sleep, hormones, inflammation, nutrient status, gut health, blood sugar, stress, medications, environmental exposures, and other factors can all influence how clearly your brain functions.

You don’t have to wait until there’s a diagnosis before asking why this is happening.

That’s where functional medicine takes a different approach.

I look for the why—before there’s a name for it.

— Dr. Keri Thorn, MD

08/06/2026

Reintroduction / Follow Post

A quick, practical note before I get back to regular posting.

Facebook has changed how it decides who sees a Page's posts — liking a page and following it are actually two different things now, and only followers see posts in their feed. So if you've liked this page but haven't seen much from me lately, that's likely why.

If you'd like to keep seeing what I share here — on brain health, root-cause thinking, and what a real investigation into things like brain fog actually looks like — take a second to tap Following, and choose See First if you want to make sure it shows up.

And if this isn't something you personally need right now — you probably know someone who does. A parent who's been told their labs are "normal" and still doesn't feel right. A friend who's stopped trusting her own memory. Feel free to share this with them, or tag someone below.

Thanks for being here. More to come soon.

— Dr. Keri Thorn, MD

08/06/2026

"My doctor told me everything looks fine, but I know something's off."

"Your labs are normal."

If you've heard that before but still didn't feel right, you were right to keep questioning it.

It's like calling the plumber to check for a leak, and being told the pipes are fine. But you can still hear water running behind the wall. Something's wrong — but you haven't found the person who's willing to open the wall and look.

Standard labs are built to catch disease. They're not built to catch dysfunction — the earlier stage, before something has a name yet. That's a different kind of investigation, and it's the one I routinely do.

"Normal" doesn't have to be the end of the conversation. It's where the real one begins.

— Dr. Keri Thorn, MD

08/05/2026

That word that wouldn't come to you at dinner last week? Here's something that may surprise you.

Even mild dehydration, as little as 1–2%, measurably slows how well your brain's electrical signals travel. It's like a message sent along a wire that has poor connections. The words that used to arrive cleanly start dropping somewhere along the way.

This isn't the whole answer for most of the women I work with. But it's one of the easiest places to start, and it costs you nothing to try.

Try this today: Aim for about 64 oz of water — roughly eight 8-oz glasses — and notice if anything shifts by the afternoon.

— Dr. Keri Thorn, MD

08/04/2026

"I'm just not as sharp as I used to be."

You've probably said it yourself, maybe without even meaning to:

"I'm just not as sharp as I used to be."

You've probably said it yourself, maybe without even meaning to.

It isn't easy to say lightly. It's a quiet thought in the back of your mind that won't go away.

Kind of like that recipe you've made from memory for twenty years — you never had to think about it, your hands just knew what came next. And then one day you're standing in the kitchen, reaching for the card, double-checking a step you've done a thousand times. You can still make the dish. But you remember when you didn't have to think about it — and now you can't stop noticing that you do.

That noticing isn't nothing. It's data. Your brain is telling you something changed. The question worth asking isn't "am I just getting older" — it's "what actually changed, and why."

There's almost always a reason. And reasons are findable.

— Dr. Keri Thorn, MD

Have you ever thought, “I want to feel better… I just don’t know what to do next.”🙍 You’re not alone.Many people come to...
12/18/2025

Have you ever thought,
“I want to feel better… I just don’t know what to do next.”🙍

You’re not alone.

Many people come to me after trying to manage symptoms on their own—diet changes, supplements, exercise plans, stress reduction—only to feel overwhelmed or unsure if they’re doing the right things for their body.

Here’s what I want you to know:
Healing isn’t about doing everything.
It’s about doing the right things in the right order, based on your biology. 💥

That’s why functional medicine looks deeper. Instead of chasing symptoms, we focus on understanding what’s driving them—whether that’s inflammation, gut imbalance, hormone disruption, nutrient deficiencies, or chronic stress.

And because change can be challenging, I work alongside a health coach (@ A-Line) who helps translate your care plan into a real-life experience. Together, we support you with clear, manageable steps in nutrition, movement, sleep, and stress—so you’re not guessing or burning out.

If you’ve felt stuck, confused, or discouraged by past attempts to “get healthier,” it doesn’t mean your body is broken. It means you deserve a more personalized and supportive approach.

✨ I invite you to schedule a Free 15-Minute Consult with me, Dr. Thorn.

Let’s talk about what’s been holding you back—and how comprehensive care could help you move forward with clarity and confidence.

Keri Thorn, MD, IFMT - Founder
Bredesen-Certified Physician
P: 406.890.3301
E: [email protected]
W: www.functionalmedmt.com

Every year, we set resolutions to “get healthier”… but it’s hard to follow through when you don’t truly understand what ...
12/12/2025

Every year, we set resolutions to “get healthier”… but it’s hard to follow through when you don’t truly understand what your body is trying to tell you. 🫤

Maybe you’ve tried to eat better, move more, or reduce stress—yet you’re still dealing with fatigue, pain, inflammation, or symptoms no one has fully explained.

And, after a while, it’s easy to wonder: Is something deeper going on?

That’s where root-cause functional medicine changes the conversation. 💥

When you finally understand why you feel the way you do, your goals are no longer guesswork.

With a physician to uncover the root causes—and a health coach to guide nutrition, movement, sleep, and stress step by step—you’re supported every part of the journey. You’re not expected to do this alone. 🤲

If past resolutions didn’t work, it’s not because you failed. It’s because you didn’t have the right information, the right plan, or the right team.

✨ If you’re ready for a different kind of New Year—one guided by clarity and support—schedule a Free 15-Minute Consult with me, Dr. Thorn, at www.functionalmedmt.com.
Let’s talk about what’s possible for your health. 🧑‍⚕️


15 years today with this incredible man. We've had some fun adventures and I'm looking forward to the next 15! 😀
09/05/2024

15 years today with this incredible man. We've had some fun adventures and I'm looking forward to the next 15! 😀

We didn’t know what to expect with an accelerated 8-day MeRT protocol. The usual treatment is over 6 weeks but some stud...
09/03/2024

We didn’t know what to expect with an accelerated 8-day MeRT protocol. The usual treatment is over 6 weeks but some studies showed improvements in 8 days so we decided to try.

I was surprised when the repeat qEEG showed minor changes.

Kids with ADHD and executive function delay can become anxious, are slow to process information, become easily overwhelmed, and are unable to stay focused enough to complete a given task. Memory is not usually an issue.

For example, if a teacher gives several steps for kids to follow, an ADHD child may finally understand the first step by the time the teacher has given 3 more, but since he is slow to process, he has missed the subsequent steps.

So how did that EEG change translate into behavioral change?

For us, it meant less difficulty with transitions and making decisions. When asked to turn off the TV, it was turned off within a minute without the usual frustration and anger. When given a choice of things he wanted, he made a decision and was happy with it. There was no ruminating over whether he made the right decision. He told me he was happy with his decision and thought it was the easiest ever made.

In the past week, we’ve seen other improvements like following through on commands and self-initiative like hanging clothing in the closet at the end of the day or putting something back on the shelf in the closet when he’s finished with it. He is also eating more which I am assuming is because he can concentrate while talking to other kids at school.

Things aren’t perfect, but there are definite improvements after the 8-day accelerated protocol.

With the above changes in 8 days, I’m confident 6 weeks of MeRT would benefit him more.

Don’t hesitate to message me if you’re interested in a qEEG analysis to see if MeRT would benefit you.

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144 E. 2nd Street Suite 100
Whitefish, MT
59937

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