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Choose a B12 tablet that dissolves under the tongue and absorbs straight into the bloodstream.
What I discovered is something I wish I had known years ago...

By Margaret Anderson

By Margaret Anderson

16 May 2026 • 3-minute read

16 May 2026 • 3-minute read

Emma de Vries | 20 september 2024
I was 59. Since 2014, I had been taking Metformin for my type 2 diabetes. Two tablets a day, as regular as clockwork, every morning with breakfast.
And I was tired. Not just a bit tired after doing the shopping. Dead tired. So exhausted that by half past ten in the morning, you look at the sofa and think: I simply cannot carry on.
My hands prickled at night. My feet felt as though I had cotton wool in my socks. I forgot names. I left the saucepan on the hob. My grandchild asked why grandma was so often "somewhere else".
And every time I mentioned it to my GP, I received the same response: "Mrs Anderson, it is part and parcel of the diabetes. You simply have to learn to live with it."
I believed that for nine years. Nine years.
Until my sister-in-law from Manchester told me something that turned everything upside down…
Over the next 60 seconds, I am going to explain precisely how I transformed myself from a woman who could no longer manage the stairs without holding onto the handrail, to a woman who could think clearly and stand firmly on her own two feet without injections, without more conventional B12 capsules, and without arguing with the GP.
Why your body needs B12 and what your symptoms are trying to tell you
What my sister-in-law explained to me was this:
Metformin, the medication that hundreds of thousands of people in the UK take every morning, blocks the absorption of vitamin B12 in the gut.
Not "occasionally a little bit". Systematically.
Your body has only one place where vitamin B12 is absorbed: a part of the small intestine called the ileum. There, small receptors catch B12 from your food and transport it into the bloodstream.
A study in Diabetes Care (Bauman, 2000) showed that metformin sabotages these exact receptors. The door to your bloodstream is shut.
In 2022, the UK’s regulatory body (MHRA) officially updated the patient information leaflet for metformin. Vitamin B12 deficiency was upgraded from "rare" to "common", affecting up to 1 in 10 users.
A Dutch study conducted across three clinics found that vitamin B12 levels decrease by 19% after four years of metformin use (de Jager, BMJ, 2010). And for every year on metformin, the risk of deficiency increases by 13% (Aroda, JCEM, 2016).
But here is what I truly found hard to swallow: British healthcare guidelines do not recommend routine B12 tests for metformin patients. In the UK, recommendations vary between healthcare providers, and routine testing is not always carried out.
Diabetes was never the culprit. It was my medication. And the system that was supposed to protect me was simply looking the other way…
Why everything I tried previously failed to work for even a single day
When I finally found out, I thought: right, no problem, I will just buy some B12. But it was not quite that straightforward.
Vitamin B12 capsules from the chemist. That is the first thing everyone tries — a little pot from Boots, health shops, or supermarket chains for a few pounds. And that is precisely what I bought.
But consider what happens next: You swallow the capsule. It travels down the oesophagus into the stomach and ends up at the very same blocked ileum receptors that metformin has been shutting down for years. The vitamin B12 knocks on the same closed door and, for the most part, passes straight out of the body unused.
It makes no difference whether the capsule contains 100, 500, or 1000 µg. The pathway is broken. So nothing gets through.
Vitamin B12 injections from your GP. They work, but in the UK, you only get them after an official diagnosis, and GP guidelines do not routinely suggest them.
A routine test is performed. It is a vicious circle. And even if you do get the injections, you are completely exhausted again after six weeks because the effect has worn off. You are reliant on the needle, month after month.
Multivitamin supplements from the supermarket. The very same story. They all follow the same flawed route. And nine out of ten multivitamins from the pharmacy contain cyanocobalamin — the cheap synthetic form that your liver has to convert before your body can even absorb it. A double loss: the wrong form, via the wrong route.
None of these three solutions addresses the real issue. Because as long as the B12 vitamin travels along the blocked route, it does not matter how much you take.
It is a matter of method, not dosage.
And at that moment, I understood why my sister-in-law was so convinced about the benefits of that little tablet under the tongue…
A tablet placed under the tongue that bypasses the gut entirely and enters the bloodstream.
Imagine if there were a way to restore your B12 levels to the levels achieved with injections.
No needles, no doctor’s appointments, no debating whether it is "really necessary", and without having to go through the same blocked gut that your metformin has compromised for years.
This alternative exists. It is called a dissolvable tablet.
Place it under your tongue. Do not swallow, do not chew. It dissolves in 60 seconds, and the vitamin B12 is absorbed directly into the bloodstream via the thousands of tiny blood vessels beneath the tongue.
No stomach required. No intestines required. No ileum receptors needed — the very part of the gut that metformin shuts down.
The dissolvable tablet worked rather better than the injection.
However, not all vitamins are created equal. The form matters. The dose matters. The method of delivery matters. Most tablets from high-street chemists contain cheap cyanocobalamin, which your liver must first convert, and in quantities your body can barely absorb.
And that brings me to what my sister-in-law placed on the kitchen table: VitalNerve™ — a dissolvable B12 tablet tailored for individuals taking metformin. One tablet, 1000 mcg methylcobalamin, cherry flavour, 60 seconds under the tongue. Bypasses the stomach completely. Bypasses the gut completely.
Think of it this way: Metformin locks your front door. A standard B12 tablet keeps knocking on it. VitalNerve™ simply walks around the house and enters through the side door.
94% notice a difference after the very first tablet. I certainly did. Within an hour, the brain fog had cleared, as though someone had opened a window. I did not experience my usual afternoon slump that day. I slept through the night. The following morning, I simply woke up without that heavy, leaden feeling.
My husband said that evening: "Margaret, your eyes look quite different."
And he was right.
Why VitalNerve™ is offering a 50% discount today
VitalNerve™ is not sold in chemists, health shops, on Amazon, or in pharmacies. It is available exclusively direct from their own website. In this way, they keep the price reasonable and the quality high.
Today, there is an exclusive Facebook discount of 50%, ending at 23:59 tonight.
You also receive a 60-day money-back guarantee: You try it for three months, and if you do not notice a difference in your energy, clarity, or prickling sensations, simply return the empty containers for a full refund. No questions asked, no fuss whatsoever.
Imagine waking up tomorrow morning without that heavy, leaden feeling, and still having plenty of energy to play with your grandchildren later that day.
Imagine: A good hour’s walk without needing to stop for a rest. And hands that remain completely still at night.
More than 60,000 people across the UK have already taken this step. Stock is limited and the discount finishes tonight.

Diane P.
Does it really help with Metformin tiredness?
Reviewed in London on 12 March 2026
Verified purchase
I have been taking Metformin for seven years and was so exhausted I genuinely thought I was developing dementia. After the very first VitalNerve tablet under my tongue, I noticed my head felt clearer that very afternoon. The parcel arrived within three days — remarkably quick service.


Howard V.
At first I thought it was complete nonsense.
Reviewed in London on 14 March 2026
Verified purchase
To be frank, I thought it was just another online gimmick. But the 60-day guarantee made it risk-free, so I gave it a go anyway. I noticed a distinct difference in my energy levels on the very first day. Rather surprised, but thoroughly pleased.

You now stand at a crossroads.
Option 1: Do nothing. You continue taking your Metformin every morning without addressing the B12 vitamin it is quietly depleting. The prickling sensations get worse.
The fatigue gets worse. And as researchers warn: the longer you leave it, the harder it becomes to repair nerve damage. In a year's time, you could be sitting in the very same chair, hearing the usual "It is likely down to your blood sugar" from your doctor, while your body has lost another year of vitality.
Option 2: Try it today. One small, dissolvable tablet, once a day, under the tongue.
Completely risk-free, as you have 60 days to test it and receive your money back if it fails to work for you. Join the more than 60,000 people who have already regained their energy, clarity, and confidence, often within a single day. You will be the grandmother, the father, the partner who is simply present again.
The choice is entirely yours. However, today's discount genuinely ends at midnight.

Special Offer: 50% off today only!
UPDATE: This offer is exclusively available on this page — not on Amazon, not on eBay, and nowhere else.
We are only able to offer this because we supply directly to our customers. No middlemen. No hidden charges.
However, once current stocks are exhausted, that is it.

60-day risk-free money-back guarantee
Use it for 60 days. No noticeable results? You will receive a full refund. No questions asked.
More than 60,000 people have already taken this step. Order now to secure the discount reserved for the first 100 visitors, before stocks run out.

Sophie Hughes
Can anyone actually confirm this? I have tried so many things and, frankly, I have grown rather sceptical.
Like · Comment · 👍 34 · 29 mins

Emily Clarke
Hello Sophie. This little tablet is brilliant! I have been taking Metformin for 11 years and suffered from constant prickling in my hands. VitalNerve sorted it out within three weeks, but I felt noticeably more energetic on the very first day. It simply dissolves under the tongue; no need to swallow anything. I hope it helps you too!
Like · Comment · 👍 2 · 11 mins

Diane Wilson
How long does delivery take?
Like · Comment · 👍 34 · 29 mins

Julie Robinson
Hello Diane, mine arrived within a week.
Like · Comment · 👍 2 · 40 mins

Rachel Turner
Hello Helen, this is what you need instead of those B12 tablets from Boots.
Like · Comment · 👍 6 · 1 hr

Helen Foster
Gosh, incredible, I have just ordered one!
Like · Comment · 👍 2 · 40 mins

Alison Moore
I really ought to have got this much sooner. It is precisely what I needed for my metformin-induced fatigue. Honestly, I noticed a difference on day one. Two days of use and I feel better than I have done in the last two years!
Like · Comment · 👍 6 · 1 hr
Recommended:
★★★★★
4.9 | 60,684 reviews

VitalNerve™

Waking up without heavy fatigue

Sleeping through the night without prickling hands

Clear head without the afternoon slump

Energy restored without injections or pills
Get up to 50% off today

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