The Gut Whisperer - Dr. David Miller, ND

01/08/2026

12/22/2025

If you saw my last post on frozen shoulder, this is the breakdown.

Sometimes frozen shoulders aren’t really a shoulder pathology per se.

When rehab, injections, and stretching don’t work, it’s often because we’re treating the wrong tissue.

Usually, by the time I see these cases, skilled clinicians have already addressed the local pathology with evidence-based care. That gives me the opportunity to look at the problem from a different angle.

It’s been shown that the liver has to accommodate diaphragmatic and thoracic movement during shoulder motion — which makes it a useful example of how visceral and organ-related fascial tension can influence musculoskeletal range and pain.

12/19/2025

This is about fragility and tolerance thresholds, not or immune .

11/11/2025

Glutathione is my go-to for clearing oxidative stress out of an overstimulated nervous system.
When your body’s running too hot — anxious, inflamed, or reactive — this molecule helps it cool down and recalibrate.

Most people I see in clinic have either a gut issue, a neurological issue — or both.
That’s why glutathione has become a staple here: the gut and brain are linked through oxidative stress.

When the gut lining gets leaky, oxidative stress spikes — and that same stress fuels neuroinflammation.
It’s a two-way street: gut barrier damage drives brain inflammation, and brain inflammation worsens gut function.
Glutathione sits right in the middle — defending both.

Of all the neurological issues I use it for, it’s most often a “chill pill” for people with a wired, anxious, or overactive nervous system.
That kind of nervous system overactivity is everywhere today — and glutathione helps calm it, fast.

With the right form, you can actually feel it within minutes.
And since our own production drops with age, keeping levels up supports longevity, resilience, and recovery. 🧬

⸻

💬 Got a question about glutathione or oxidative stress?
Drop it below 👇 — I’ll answer some in the comments and pick a few for a follow-up Reel.

08/10/2025

These are the main barriers to in the modern world. It can be a kind of in some of its forms, but don’t forget the foundations. Thanks .panda for helping us refine our understanding of circadian rhythms.

08/10/2025

Do you judge an exhausted person equally to a “lazy” person?
🥱🥱🥱🥱🥱🥱🥱🥱🥱🥱🥱🥱 What if you’re not lazy… you’re just tired?
I see it all the time — people dragging themselves through the day, feeling guilty because they “should” have more energy.
But here’s the tea ☕: fatigue isn’t a personality trait. It’s a symptom. And symptoms have causes.
Iron deficiency. Thyroid issues. Blood sugar dysregulation. Poor sleep quality. Chronic infections. Low stomach acid. Adrenal strain.
Before you label yourself (or someone else) as “lazy,” ask:
🔍 Has there been a full workup?
🔍 Are you nourishing and absorbing what you eat?
🔍 Is your body trying to tell you something?
You can’t shame someone into having energy. But you can figure out what’s draining it.
🚫 Lazy. ✅ Undiagnosed.

07/07/2025

Most probiotic prescriptions?

Still just a kick-and-hope move.

But if you’re walking around with:
* 🧈 Floating, pale, or sticky stools
* 🥴 Nausea or fullness after eating fat
* 💨 Bloating up high (not just in your pants)
* 💩 Stools that smear or show food bits
* 🔁 Gut issues post-antibiotics..you’re not looking at a colon issue.
You’re looking at foregut dysfunction — stomach acid, bile, and enzymes not showing up to work.
👉 If you’re not supporting the foregut, you’re just cleaning up messes further down.

🎯 What to do about it:
🟢 L. reuteri DSM 17938
* Supports bile & gut movement
* Calms inflammation, especially post-antibiotics or in kids
* Great first step for gentle rebalancing
🔵 HU58 (Bacillus subtilis)
* Stimulates enzymes + bile
* Rebuilds upper gut terrain
* Stronger — start slow, respect the heat

Match the probiotic to the physiology.
Start where digestion starts.
No more kick-and-hope.

06/11/2025

Most patients don’t need more healthy tips—they’re already overwhelmed with advice. What they really need is ENERGY to follow through. A cell can’t thrive in low-energy conditions—without ATP from mitochondria, processes like repair stall!

Have you had your checked? WITH
- Inflammation markers AND
- and serum iron …..
- ?

IF sickness leads to fatigue due to metabolic demand and fatigue and low energy states lead to compromised cellular metabolism…

THEN …
Does sickness precede fatigue or vice versa?

06/02/2025

Which of the following has/have attachments in the cervical spine?

05/05/2025

I have seen a great many patients with conditions who also have a stomach condition, as per my clinical evaluation (which includes symptoms, informed physical examination, and workup).

If you've got a thyroid condition and a stomach condition such as H. pylori, you'll likely have to take care of the to address the thyroid.

Practical note for Ontario residents: NDs in Ontario can order H. pylori breath and stool tests.

04/30/2025

Vitamin D has a significant impact on metabolism.

GET IT CHECKED!

02/20/2025

When trying to figure out why a patient has high cholesterol, my first thought is insulin resistance. Often this is a way better root cause assessment of high cholesterol, this it is not always the case….