Dr. Fitz Nutrition

Dr. Fitz Nutrition Root-cause nutrition for nerve & metabolic health. Developed by a peripheral nerve surgeon. Focused on mitochondrial support & aging well.

03/12/2026

I see this in patients all the time — blood sugar looks managed, but neuropathy keeps getting worse. It's frustrating, and it's not their fault.
The problem is most people only focus on glucose. But there are actually 3 drivers of nerve degeneration: oxidative metabolic stress, damaged microvascular supply (the tiny vessels that literally feed your nerve fibers), and chronic systemic inflammation — which can progress nerve damage entirely independent of blood sugar.
That last one surprises almost everyone.
The encouraging part: all three are at least partially addressable. Multiple studies link improvements in metabolic control, vascular health, and inflammation to better nerve function over time.
If you're dealing with neuropathy, don't just chase the A1C number. Watch the full explanation here and grab my free Metabolic Health Guide at DrFitzNutrition.com.

03/11/2026

When patients come to me with neuropathy, the first thing I tell them is this: your nerves aren't frozen in damage. They're in a constant cycle of breakdown and regrowth — every single day.
The small fiber nerves responsible for pain and temperature sensation degenerate at their tips and regenerate from the nerve body. That process works beautifully — until chronic high blood sugar, oxidative stress, and inflammation push degeneration ahead of regeneration.
That's when numbness, burning, and lost sensation start to appear.
But because this is an ongoing process, it CAN be redirected. Addressing what's driving the metabolic damage is the key.
If you or someone you love is dealing with neuropathy, I put together a free Metabolic Health Guide that walks through exactly where to start: DrFitzNutrition.com
Full blog on this topic at: https://drfitznutrition.com/blogs/nerve-health-nutrition/nerve-tingling-and-burning-why-your-nervous-system-is-caught-between-damage-and-repair

03/10/2026

Something most neuropathy patients are never told: your nerve fibers are constantly dying back and regrowing — even now.
In chronic neuropathy, the problem isn't that nerves can't grow. It's that degeneration is outpacing recovery.
That distinction changes everything. Because if it's a process, it can be influenced.
I'm Dr. Michael Fitzmaurice — I trained as a peripheral nerve surgeon and spent years studying how nerves fail and how they heal. Today I help patients rebuild nerve function using evidence-based approaches that most doctors don't discuss.
Want to go deeper? I wrote a full breakdown on this exact topic on my blog:
🔗 https://drfitznutrition.com/blogs/nerve-health-nutrition/nerve-tingling-and-burning-why-your-nervous-system-is-caught-between-damage-and-repair

03/03/2026

40% improvement in nerve fiber growth — from walking and cycling. A 2015 clinical trial published in the Annals of Neurology proved exercise doesn't just help neuropathy symptoms... it triggers actual nerve regeneration. Here's the mechanism most doctors never explain — and why moderate, consistent movement is the most underrated tool in nerve recovery. Full science breakdown at DrFitzNutrition.com 👇
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02/24/2026

Your nerves repair during deep sleep.

That’s when growth hormone rises, oxidative stress drops, and mitochondria reset energy production.

Cut sleep short consistently?
You cut nerve recovery short.

Over time that lowers nerve resilience and makes flare-ups easier to trigger.

If you want stability, protect deep sleep like it’s medicine.

Comment if you’ve noticed symptoms worsen after poor sleep.

02/20/2026

Part 3: How Poor Sleep Increases Inflammation & Nerve Symptoms

This is Part 3 of a 4-video breakdown of the sleep–nerve pain cycle.
Poor sleep doesn’t just affect energy. It disrupts stress hormone balance and immune signaling, increasing inflammatory activity.
Those inflammatory chemicals can make nerves more sensitive and affect the small blood vessels that support nerve tissue.
If your symptoms spike after stress or short sleep, that’s a physiological stress-inflammation response.
Part 4 will cover how sleep supports nerve repair and long-term resilience.
Are you following the full series?

02/18/2026

Many people with neuropathy notice their symptoms feel worse after poor sleep.

That’s not random. Sleep deprivation lowers your pain threshold and increases sensitivity to nerve signals.

If your burning or tingling spikes after a rough night, it may reflect recovery disruption — not necessarily progression.

Have you noticed this pattern?
Follow along for video 3 in the series

02/16/2026

If your nerve symptoms flare at night, it’s not necessarily random.
Research shows sleeping under 7 hours is associated with significantly higher chronic pain levels.
Here’s why:
When sleep drops:
• The nervous system stays on high alert
• Pain signals feel louder
• Stress hormones increase
• Recovery slows
Pain disrupts sleep.
Poor sleep amplifies pain.
This is a cycle most people never realize they’re in.
Over the next 3 videos I’ll break down the mechanisms.
Save this if nighttime symptoms are an issue.

02/09/2026

Insulin isn’t just about blood sugar.

It’s also a growth and repair signal for nerves.

When insulin resistance develops, that signaling weakens — and nerves may repair more slowly.

That’s why tingling, burning, or nerve pain can appear early, even before diabetes.

Metabolic health and nerve health are deeply connected.

Save this if nerve symptoms have been confusing.





02/08/2026

If you have tingling, burning, buzzing, or numbness — insulin resistance may be part of the story, even before type 2 diabetes.

Why? Insulin resistance can create a “toxic” nerve environment:
✔️ inflammation
✔️ oxidative stress
✔️ lipid issues
✔️ impaired nerve support signaling

Small fibers are often affected first, which is why symptoms can feel vague or intermittent early on.

Save this if nerve health is a concern.

Nerve Symptoms Are Often Metabolic — Not RandomTingling, burning, or numbness rarely appear out of nowhere.In many cases...
02/06/2026

Nerve Symptoms Are Often Metabolic — Not Random

Tingling, burning, or numbness rarely appear out of nowhere.

In many cases, nerve symptoms are linked to metabolic stress — including poor sleep, blood sugar swings, micronutrient gaps, and muscle loss.

Your nerves feel these changes long before labs show a problem.

When you address the inputs, nerve signaling often becomes calmer and more stable over time.

Save this if nerve health is a concern.







Did you know over 20 million Americans are living with nerve damage—and most don’t know it yet?Early nerve damage is oft...
01/23/2026

Did you know over 20 million Americans are living with nerve damage—and most don’t know it yet?
Early nerve damage is often silent, which is why people dismiss early symptoms as aging or stress.
🚨 5 early warning signs to pay attention to:
• Tingling (especially at night)
• Numbness in hands or feet
• Burning pain without injury
• Balance issues blamed on aging
• Pain from normal touch
These symptoms are often linked to metabolic and blood sugar stress.
✨ Early detection matters.
👇 Which symptom surprised you most?
📤 Share this with someone who may need it.

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