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Patient stories > Recovery from nerve damage

At 58, I had practically given up on life. I was on the verge of accepting a wheelchair – until I learned about so-called "gastric blindness".

My doctors said my test results were "completely normal." My feet told me otherwise—it felt like my life was over.
Here's my story of how I discovered the crucial piece of the puzzle that three neurologists had missed.

By Markus K.
Published on April 5, 2026 | Reading time: approx. 3–5 minutes

I remember the exact moment I gave up.

It wasn't in a doctor's office. Not when I picked up my prescription for gabapentin. And not during one of those sleepless nights when the bedsheets felt like sandpaper against my skin.

It was in my own garage.

I was 58 years old and had worked as a carpenter for 30 years. My hands were steady, my eyesight still good – but my feet had let me down.

I was just about to get a box of Christmas decorations from the shelf. Nothing special, maybe around chest height.

I stood on a small stool. And then – nothing.

No feeling anymore. No contact with the ground. Just this sudden, frightening tipping.

I fell hard. Tools flew everywhere, the box shattered. And as I lay on the cold concrete, staring at the ceiling and waiting for that burning, pulling sensation to shoot through my legs again, something dawned on me that truly terrified me:

This can't go on. If things continue like this, I'll end up in a wheelchair – and sooner than I'd like.

It starts with "just a small stumble" – and ends with losing your independence.

The “inconspicuous” diagnosis that made me angry

If you're reading this, you probably know what I mean.

You go to the neurologist. You sit down on this rustling examination table. They prick your toes with a small needle and ask: "Can you feel that?"

You say no.

Then blood is drawn. The long-term blood sugar level is checked. The B12 level is also checked.

A week later, the phone calls.

"Good news, Mr. K.! Your test results are normal. Everything is fine for your age."

In order?

My feet feel like they're wrapped in barbed wire. I can barely feel the accelerator pedal in the car anymore. At night, I jolt awake several times because electric shocks of pain shoot through my entire body.

And then they say everything is fine?

The silent epidemic that hardly anyone talks about

What your doctor probably didn't tell you:

Peripheral neuropathy affects millions of people – including here in Germany. And yet many suffer in silence because they keep hearing the same thing:

"There's nothing you can do. They have to learn to live with the pain."

But what is often kept quiet:

Neuropathy is not a disease in itself. It is a symptom. Your nerves are damaged, yes – but why?

Possible causes include:

✔  Diabetes (including prediabetes)

✔  Chemotherapy

✔  Vitamin deficiency

✔  Autoimmune diseases

✔  Infections

✔  Medications (e.g. cholesterol-lowering drugs, blood pressure medication, or heartburn medication)

And in about 25% of cases? Nobody knows for sure. Then it's called "idiopathic"—a medical term for "cause unknown."

But just because the cause is unclear doesn't mean nothing can be done.

What's really happening in your nerves

Imagine your nerves like electrical wires. Each nerve fiber is surrounded by a protective sheath – the so-called myelin sheath. This ensures that signals are transmitted lightning-fast from the brain to the feet and back again.

In neuropathy, this protective layer is gradually damaged, similar to the insulation of a cable becoming porous and exposing the inner structure.

The result: The signals get mixed up. Your brain sends the command "Move your toe" – but the information gets lost or arrives distorted along the way.

Even worse: The damaged nerves suddenly send false signals:

✔ Burning even though nothing is hot

✔ Electric shocks even though nothing is touching you

✔ Numbness that slowly spreads

✔ Pain that wakes you up at night

This process is known as Wallerian degeneration – and it progresses. If nothing is done about it, it will get progressively worse.

The “graveyard” of dietary supplements

I became completely obsessed with it. I spent thousands of euros online. "Nerve complex" mixtures, turmeric, alpha-lipoic acid.

And yes, B vitamins too.

I bought the expensive ones. The ones with "high dose" on the packaging. Every morning I swallowed tablets so big that they were almost impossible to swallow.

The result? Nothing.

Maybe on a good day there was five percent less pain. But the numbness kept creeping up my ankles. This "dead" feeling was spreading.

Eventually I came to terms with it: My nerves are shot. There's no getting back. That's just how it's going to end.

The discovery of "gastric blindness"

Then I met Dr. H. (name changed for privacy reasons), a former researcher, at a party.

I was sitting there, automatically massaging my calf – a habit I hadn't even noticed anymore. He commented on it.

I told him my whole story: "Neuropathy. I take B12. I take Gabapentin. Nothing helps."

He looked at me over his glasses and said a sentence that changed everything:

“Markus, taking B12 tablets for neuropathy is like trying to put out a burning house with a water pistol – from three streets away.”

Then he explained a concept to me that he called "functional malabsorption" - or, as he put it, "stomach blindness" .

The "stomach blindness" effect: Why even 5,000 µg often do nothing.

“Your nerves aren’t necessarily broken, Markus,” he told me. “They’re starving. They’re simply not getting what they need – and what you swallow never gets there.”

Why most B vitamin supplements don't work

Dr. H explained to me why the usual medications for neuropathy often fail:

Reason 1: The wrong form

Many products contain cyanocobalamin (a synthetic form of B12) instead of methylcobalamin – the form the body can directly use. It's like putting the wrong fuel in your car.

Reason 2: Poor recording

Tablets must first withstand stomach acid, then compete with food, and rely on intrinsic factor – which many people over 50 barely produce enough of. By the time the vitamin reaches the small intestine, often very little remains.

Reason 3: Unsuitable recording method

Even with the right form, only a fraction of the medication from tablets actually reaches the body. This is generally insufficient for nerve regeneration.

The solution: A different recording method

He advised me to stop taking the pills immediately.

Instead, I should look for a B-complex supplement that has two crucial properties:

1. Liposomal: The vitamins are surrounded by a layer of fat that protects them from stomach acid and helps to transport them better into the cells.

2. Sublingual (liquid): It is not swallowed, but placed under the tongue, where it is absorbed directly through the oral mucosa.

Why is this important? There are many fine blood vessels running under the tongue.

I went home and did some research. That's how I came across the Nuvel™ Vitamin B Complex .

Exactly as he had described it: a liposomal, liquid solution for absorption through the oral mucosa. No tablets. No detours via the digestive system.

The Nuvel™ method: Delivering nutrients directly into the bloodstream – without going through the stomach.

The key ingredients that make the difference

Not all vitamin B complexes are created equal. This is what sets Nuvel™ apart from many other products:

Methylcobalamin (active vitamin B12)

This form can be used directly by the body. It supports the formation of the myelin sheath – the protective covering around nerve fibers – and helps to improve nerve signal transmission.

Benfotiamine (fat-soluble vitamin B1)

Regular thiamine is only partially absorbed by the body. Benfotiamine, on the other hand, is significantly more bioavailable and can help nerves receive energy and protect themselves from harmful oxidative stress.

Pyridoxal-5-phosphate (active vitamin B6)

The active form of vitamin B6 is important for the formation of neurotransmitters. It supports communication between nerve cells and can reduce inflammatory processes in the body.

Liposomal technology

Each vitamin is surrounded by a protective layer of fat, which:

✔ it protects against stomach acid

✔ facilitates absorption into cells

✔ significantly improved bioavailability

Sublingual absorption

The oral mucosa under the tongue is particularly well supplied with blood. Nutrients can be absorbed quickly here – without having to go through the digestive tract.

My 12-week journey: From the "wheelchair idea" back to life

I ordered three bottles. To be honest, I was skeptical. I didn't want to get my hopes up again.

Week 1:

The taste was pleasant, the application straightforward. The effect? ​​None. I was about to give up. But I remembered what Dr. H had said: A deficiency can't be corrected overnight.

Week 3:

One morning I noticed something: I had slept through the night. No electric shocks, no restless legs. Just sleep – for the first time in two years.

Week 5:

The burning sensation subsided. Not completely, but significantly. Instead of a 9, perhaps only a 6 on the pain scale. I could wear socks again without it being unbearable.

Week 6:

This constant "tingling," like a background hiss, became quieter. From a loud humming to a barely perceptible whisper.

Week 8:

I went to the mailbox – without holding onto the fence. It sounds trivial, but for me it was a huge step back towards independence.

Week 9:

I was back in the garage. I needed a screwdriver from the lower shelf. I squatted down, picked it up, and stood up again.

I stopped. Waited for the wobbling. For the pain.

Nothing came.

I just stood there – and had to cry. Not from pain, but from relief.

Week 12:

I went back to work. Part-time at first. My hands were always able to manage – and now my feet were finally cooperating again.

I built a bookshelf for my granddaughter. And for the first time in a long time, I felt like myself again.

Nuvel™ provides the building blocks (methylcobalamin & benfotiamine) that your nerves need to regenerate – especially the protective myelin sheath.

This is not a "cure". It's a restoration of a piece of quality of life.

To be honest, I'm not "cured." There are still days when things go badly. And I still need to take care of myself.

But I'm not looking at wheelchairs anymore.

I'm walking my dog ​​again. I'm working in my workshop. I'm alive again.

If you've been told, "that's just how it is," or if pills haven't helped you, then you should know one thing: perhaps the problem isn't just with your nerves – but with how your body can absorb nutrients in the first place.

What the research says

I don't expect you to simply believe me. But a look at the research shows:

The research is clear. The mechanism is understandable.
The only question that remains is: Why didn't your doctor tell you about it?

Why your doctor often doesn't mention this

The inconvenient truth is: nutrition usually plays only a very small role in medical studies.

Doctors primarily learn how to diagnose diseases and prescribe medications – not how to specifically improve nutrient supply.

Gabapentin, Lyrica, Cymbalta – these are the medications they use. They are covered by health insurance. This is an established practice.

But these medications usually only address the symptoms – not the actual cause of the nerve damage.

That doesn't mean they are inherently bad. For many people, they are important and useful.

But if your nerves are lacking certain nutrients, no medication will compensate for this deficiency.

Why Nuvel™?

There are many vitamin B complexes on the market. But Nuvel™ is one of the few products that combines several crucial factors:

✔ Benfotiamine (fat-soluble vitamin B1): important for the energy supply of nerve cells and protection against oxidative stress

✔ Methylcobalamin (active vitamin B12): supports the regeneration of the myelin sheath

✔ P5P (active vitamin B6): necessary for the formation of neurotransmitters and nerve signal transmission

✔ Liposomal technology: protects the vitamins and improves their absorption in the body

✔ Sublingual application: allows absorption through the oral mucosa and bypasses the digestive tract

This is not a random combination of ingredients, but a well-thought-out concept – designed to circumvent typical absorption problems and deliver nutrients to where they are needed.

End the deficiency. Take proper care of your nerves.

Don't wait until there's no turning back.

Frequently Asked Questions

The decision is yours.

You basically have two options.

Way one:

You continue as before. You keep taking things that hardly help you. You keep telling yourself: "That's just the way it is."

You watch as the numbness slowly spreads upwards. And you mentally prepare yourself for the worst. 

Option two:

You're taking a different approach. You're giving your nerves what they truly need – in a form that your body can actually absorb.

And give yourself a few weeks to see what changes.

I'm not promising you miracles. And I'm not saying it will work the same for everyone.

But if your problem is that your body cannot properly absorb important nutrients, then even high-dose tablets won't change that.

Then you need a different approach.

Then you need a different type of recording – like with Nuvel™ .