Nerve Health & Education

Multiple sclerosis diet, lifestyle, and supplements evidence review by peripheral nerve surgeon Dr. Fitz, with a gold myelinated nerve fiber illustration — DrFitzNutrition.com
Multiple Sclerosis, Lifestyle, and Supplements: What the Evidence Shows
A peripheral nerve surgeon breaks down what diet, exercise, and supplements can and cannot do for MS. The key: no supplement is proven to change the disease, but several can... Read more...
Neuropathy testing guide cover: which test detects nerve damage, EMG, skin biopsy, and nerve ultrasound explained by a peripheral nerve surgeon — DrFitzNutrition.com
Neuropathy Testing: Which Test Detects Neuropathy? A Physician's Guide to EMG, Skin Biopsy, and More
A peripheral nerve surgeon explains what each neuropathy test actually measures, and what it misses. EMG, skin biopsy, nerve ultrasound, autonomic testing, and blood work each answer a different question,... Read more...
Peripheral nerve cross-section illustrating how neuropathy can begin in prediabetes before diabetes — DrFitzNutrition.com
Prediabetes Neuropathy: Can You Have Neuropathy Before Diabetes? A Surgeon Explains
A peripheral nerve surgeon explains why nerve injury may begin before diabetes is diagnosed. In some people, the metabolic dysfunction behind prediabetes — insulin resistance, oxidative stress, poor nerve energy... Read more...
Burning feet causes beyond neuropathy — anatomical peripheral nerve cross-section illustrating the small sensory fibers involved — DrFitzNutrition.com
Burning Feet: Causes Beyond Neuropathy — How to Tell the Difference
A peripheral nerve surgeon explains why burning feet is a symptom, not a diagnosis. Neuropathy is only one of many causes — from prediabetes and B12 deficiency to compressed nerves... Read more...
Anatomical cross-section of a peripheral nerve showing myelinated axons, fascicles, and connective sheaths, titled as a nerve supplement ingredient guide — DrFitzNutrition.com
What Should a Nerve Health Supplement Contain? A Physician's Guide
A fellowship-trained peripheral nerve surgeon breaks down which nerve supplement ingredients have real human and preclinical evidence, which forms and doses matter, and the safety traps (like high-dose B6) to... Read more...
Peripheral nerve cross-section showing the small fibers damaged in small fiber neuropathy that a normal EMG cannot detect — DrFitzNutrition.com
Small Fiber Neuropathy: Why a Normal EMG Doesn't Rule Out Nerve Damage
A peripheral nerve surgeon explains why a standard EMG can read perfectly normal while your small nerve fibers are failing, what test actually detects small fiber neuropathy, and why finding... Read more...
Best nerve health supplement buyer's guide, a peripheral nerve surgeon's framework for choosing one — DrFitzNutrition.com
Best Nerve Health Supplement: A Peripheral Nerve Surgeon's Guide to Choosing One
The nerve-supplement aisle is full of single-ingredient products and hidden "proprietary blends." A peripheral nerve surgeon explains the six criteria that separate a serious nerve formula from a marketing exercise,... Read more...
Editorial image of a supplement capsule with gold granules beside a glowing nerve fiber on a navy background — DrFitzNutrition.com
Carpal Tunnel Supplements and Recovery: A Nerve Surgeon's Evidence Review
A fellowship-trained peripheral nerve surgeon separates the supplement claims that hold up from the ones that do not, including the B6 dose that harms nerves, the alpha-lipoic acid timing lesson,... Read more...
Editorial illustration of the median nerve glowing gold through the carpal tunnel of a translucent wrist on a navy background — DrFitzNutrition.com
Carpal Tunnel Syndrome: A Nerve Surgeon's Guide to Causes, Treatment & Surgery
A fellowship-trained peripheral nerve surgeon explains how carpal tunnel syndrome actually injures the median nerve, why symptoms peak at night, and the four stages from reversible to permanent. Learn what... Read more...
Editorial illustration of a healthy gold peripheral nerve fiber surrounded by oxidative stress, constricted microvessels, and inflammation, showing neuropathy as an environmental problem around the nerve — DrFitzNutrition.com
Tingling, Burning, or Numb Feet? What Alpha-Lipoic Acid Does for Your Nerves
A peripheral nerve surgeon explains what alpha-lipoic acid actually does for tingling, burning, and numb feet. Learn how it targets the oxidative stress behind neuropathy, why R-ALA and the 600... Read more...
Dr. Fitz Nutrition featured graphic titled Neuropathy Vitamins: What Actually Works, with peripheral nerve surgeon Michael Fitzmaurice, M.D. — DrFitzNutrition.com
Neuropathy Vitamins: What Actually Supports Nerve Health
nerve surgeon explains which neuropathy vitamins genuinely support nerve health and which just sell bottles. The mechanism, the real evidence behind B12, alpha-lipoic acid, and benfotiamine, and how to match... Read more...
The neuropathy diet, foods to eat and avoid to protect peripheral nerves, a peripheral nerve surgeon's guide — DrFitzNutrition.com
The Neuropathy Diet: What to Eat and What to Avoid to Protect Your Nerves — A Peripheral Nerve Surgeon's Guide
A peripheral nerve surgeon explains exactly which foods damage your nerves, which support repair, and why one common household item is the single most clearly neurotoxic substance in the American... Read more...
Dr. Michael Fitzmaurice, peripheral nerve surgeon, in a white shirt against a navy background, alongside the title "A Nerve Surgeon on Omega-3s" — blog post explaining how EPA and DHA affect peripheral nerve repair.
Omega-3s for Nerve Repair: What a Peripheral Nerve Surgeon Wants You to Know About the Real Evidence
A peripheral nerve surgeon walks through the actual mechanisms by which omega-3 fatty acids influence nerve repair, the human trials that worked (and the one that failed), and the dose... Read more...
Editorial illustration of bromelain, a pineapple-derived enzyme, acting on inflamed peripheral nerve tissue through anti-inflammatory pathways, showing nerve axons and myelin — DrFitzNutrition.com
Bromelain for Nerve Pain: What the Science Actually Shows
A fellowship-trained peripheral nerve surgeon explains how bromelain, a pineapple-derived enzyme, acts on the inflammatory pathways behind nerve pain — and what the human evidence does and doesn't yet support. Read more...
Methylcobalamin for nerve repair — a peripheral nerve surgeon explains the science behind B12 and nerve regeneration — DrFitzNutrition.com
Methylcobalamin for Nerve Repair: What a Peripheral Nerve Surgeon Wants You to Know
Methylcobalamin is the most studied form of vitamin B12 for peripheral neuropathy, but most B12 supplements use the wrong form. A peripheral nerve surgeon breaks down the three mechanisms by... Read more...
At What A1C Does Nerve Damage Start? A Surgeon's Mechanism-Level Answer
A peripheral nerve surgeon explains why "at what A1C does neuropathy start" is the wrong question. Small fiber damage begins on a glycemic continuum that often predates the diabetes diagnosis. Here's what the DCCT, EDIC, and skin biopsy data actually show, and what to do if you're in the prediabetic range. Read more...
How Nerves Actually Heal: Biology of Nerve Regeneration
A peripheral nerve surgeon walks through what actually happens when a damaged nerve heals. You'll learn the three-stage biology of nerve regeneration — Wallerian degeneration, Schwann cell scaffolding, and axonal regrowth — how metabolic dysregulation suppresses each stage, and which nutrients the human research connects to specific repair pathways. Read more...
Editorial medical illustration of a clinical evidence review of nerve support supplement ingredients, showing a supplement capsule and magnifying lens over a research chart, by a peripheral nerve surgeon — DrFitzNutrition.com
Do Nerve Supplements Work? A Surgeon's Evidence & Safety Review
A fellowship-trained peripheral nerve surgeon breaks down the side effects, safety, and real clinical evidence behind the seven most common nerve supplement ingredients — including the one with a chemotherapy... Read more...
Vitamins that support nerve repair — peripheral nerve surgeon explains five evidence-backed nutrients for nerve health
Vitamins That Support Nerve Repair: What the Science Says
This post answers the high-volume PAA cluster "what vitamins repair nerve damage" with physician-level mechanistic depth instead of generic listicle content. Dr. Fitz walks through the five most evidence-supported nutritional... Read more...
Nerve Tingling and Burning: Why Your Nervous System Is Caught Between Damage and Repair
If your nerves feel on fire one moment and completely numb the next, there's a precise biological reason — and it's not random. This post explains why your nervous system gets caught between damage and repair, the everyday stressors keeping it stuck, and the specific nutrients and habits that help your body pull toward healing. Read more...
Can You Reverse Neuropathy? What the Science Actually Says
Can neuropathy be reversed? A peripheral nerve surgeon explains what "reversal" actually means at the cellular level — how peripheral nerves regenerate, which types of neuropathy can improve, and what the landmark research on blood sugar control and exercise shows about regrowing nerve fibers. A mechanism-first look at what's realistically possible, and why acting early changes the outcome. Read more...
What Causes Neuropathy in the Feet?
Neuropathy in the feet often begins with tingling, burning, numbness, or electric-shock sensations in the toes. This article explains why nerve symptoms usually start in the feet, the most common underlying causes—from metabolic and nutritional issues to toxins and autoimmune conditions—and what may be reversible when addressed early. Learn how clinicians evaluate foot neuropathy and where lifestyle, medical treatment, and nerve-support strategies fit. Read more...
Why Nerve Symptoms Feel Worse at Night
Dr. Fitz Nutrition — Nerve Health & Metabolic Science Nerve Health · Neuropathy Symptoms Why Do Nerve Symptoms Feel Worse at Night? A Peripheral Nerve Surgeon Explains If your feet start burning the moment you lie down, you're not imagining it — and it's not a sign that your nerves are suddenly getting worse. There's a very specific biological reason this happens, and understanding it puts you back in control. MF Michael Fitzmaurice, M.D. Peripheral Nerve Surgeon & Metabolic Health Educator Nighttime doesn't damage your nerves — but it does... Read more...
The science of multi-pathway nerve support — a peripheral nerve surgeon on the five biological systems peripheral nerves depend on for repair and function — DrFitzNutrition.com
Why Your Nerves Need Multi-Pathway Nutrition
Peripheral nerves depend on multiple interconnected systems, including cellular energy, myelin integrity, circulation, antioxidant balance, and inflammation regulation. Research suggests that supporting these pathways together—rather than focusing on a single... Read more...
Neuropathy Without Diabetes: 7 Common Causes
Neuropathy is often linked to diabetes—but many people experience nerve symptoms without ever having high blood sugar. This article explores seven common non-diabetic causes of neuropathy, including nutrient deficiencies, medication effects, autoimmune conditions, infections, and small fiber nerve disorders. You’ll learn why symptoms occur, what often gets missed in routine evaluations, and how nutrition and lifestyle choices can support overall nerve health alongside proper medical care. Read more...
Vitamin B for Nerve Pain: What the Science Says About Benfotiamine, Methylcobalamin, and a Systems-Based Approach
Clinical research suggests that benfotiamine (vitamin B1) and methylcobalamin (vitamin B12) may help support nerve function and reduce neuropathic symptoms, particularly in diabetes-related nerve stress, when used in bioactive forms and appropriate combinations. Read more...
What to Look for in a Nerve Support Supplement
Nerve support supplements vary widely in quality, purpose, and design—and many rely on marketing claims rather than sound biological reasoning. Because nerve health depends on multiple overlapping systems, meaningful support is rarely achieved through a single ingredient or mechanism alone. Evaluating a supplement requires looking beyond the label to understand dosing, formulation logic, safety, and how ingredients work together over time. This article outlines a practical, evidence-informed framework for assessing nerve support supplements with clarity and confidence. By focusing on formulation principles instead of hype, readers can make more informed... Read more...
Daily Habits That Support Nerve Health: How Metabolism, Movement, and Recovery Shape Nerve Function
Peripheral nerve health is shaped by everyday habits that influence metabolism, energy production, and signal transmission. This article explains how blood sugar stability, nutrition, regular movement, strength training, sleep, and stress management work together to support nerve function over time. By focusing on consistent, metabolically supportive routines, it’s possible to create an internal environment that helps nerves function more efficiently and remain resilient. Read more...
Editorial cross-section of a peripheral nerve showing bundled axons, myelin sheath, fascicles, and the vasa nervorum blood supply, illustrating how high blood sugar damages nerve fibers in diabetic neuropathy — DrFitzNutrition.com
Nerve Health Basics: How Metabolic Health and Blood Sugar Affect Peripheral Nerves
A peripheral nerve surgeon explains exactly how high blood sugar damages nerves, from the single mitochondrial overload that triggers it to the four biochemical pathways and the nerve's own starved... Read more...
B vitamins for nerve health — a peripheral nerve surgeon explains the forms and doses of B1, B6, and B12 that support peripheral nerve repair — DrFitzNutrition.com
B Vitamins for Neuropathy: The Truth About B1, B6, and B12
B vitamins have the strongest evidence base of any nutrients studied for peripheral nerve health — but only when you're taking the right forms at the right doses. This post... Read more...
Why Nerve Health Declines Over Time — And What Supports It Long Term
Explore how nerve health changes over time and why consistency, lifestyle habits, and long-term nutritional strategies matter for supporting healthy nerve function. Read more...
What Is Nerve Health and Why It Matters
Learn what nerve health is, why it matters, and how long-term nutritional strategies can support nerve function over time. Written from a clinical perspective. Read more...