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I have been a Type 2 diabetic for six years. My A1C went from 9.1 down to 6.8. My doctor shook my hand at every appointment. He said I was doing everything right. And the entire time, the Metformin he prescribed me on day one was quietly draining the one nutrient my nerves needed to stay alive. My B12 was 187. Normal starts at 300. I had been severely deficient for who knows how long. And in six years of quarterly bloodwork, nobody checked once. I am not someone who ignores his health. I took every pill they gave me. I changed my diet. I checked my numbers. I did everything the system asked me to do and I did it without complaining because that is who I am. I am the one who handles things. I am not the one who becomes a problem for other people to manage. So when my feet started doing something I didn't have a word for, I told myself it was nothing. Not pain exactly. More like someone had twanged a tendon like a guitar string - a sharp, electric pull that lasted a few seconds and then disappeared completely. I told myself it was nothing. Then it started happening at night. Then I was waking up at 3AM with both feet burning like they were pressed against a radiator, lying completely still in a dark room with nothing touching them. I'd get up and walk to the kitchen just to have something to do with myself. My wife would hear me and come out and ask if I was okay. I told her yes. I was not okay. I had been not okay for about eighteen months and I had said nothing to anyone because every single time I mentioned my feet at an appointment, my doctor looked at my A1C - 6.8, then 6.6, then 6.4 - and told me my numbers looked great. I had started taking a B12 supplement off the pharmacy shelf somewhere around month six of the burning. Whatever brand was on sale. I took it every morning. About three weeks in I noticed my urine had turned bright yellow. Almost fluorescent. Like something from a glow stick. I googled it. Found out that was normal with B vitamins. Figured the supplement was working. My feet kept burning every single night. Then I found a thread on Reddit. A guy had been on Metformin for seven years. His B12 was 211. He had the same burning feet, the same 3AM wake-ups, the same bright yellow urine from supplements that weren't doing anything. Someone in the comments wrote something that stopped me cold. They said: "Metformin blocks B12 absorption in your gut. It's right there in the prescribing information. Long-term use may result in vitamin B12 deficiency. Your doctor knows this. They just didn't tell you." I sat there at my kitchen table at 2 in the morning and read that sentence four times. Then I went and found my Metformin prescription paperwork that I had never read past the first paragraph. It was there. In the fine print. A known side effect. Listed. Documented. Something my endocrinologist had known since the day he wrote the prescription. In six years of quarterly appointments, of handshakes, of "your numbers look great," of me describing burning feet and electric shocks and 3AM trips to the kitchen — not once did he say: by the way, the medication you are taking every single day is draining the one nutrient your nerves need to survive. Not once. Now here is the part where I know exactly what you are thinking. Because I thought it too. You have already tried B12. You took the pills. You watched the urine turn yellow. You waited. Nothing changed. Maybe your number moved a little on paper and your symptoms stayed exactly where they were. Maybe nothing moved at all. And so you filed it away. B12 does not work for me. The damage is already done. This is just how it is now. I am telling you that is not what happened. What happened is that the pill never reached your nerves. Not because B12 does not work. Because of how your body absorbs it — or more accurately, how it stopped absorbing it - and because Metformin is actively making that worse every single day you take it. Here is what your doctor did not explain. After 50, your stomach acid drops by about 40 percent. Oral B12 gets destroyed in your stomach before it ever reaches your blood. Your body also produces less of a protein called Intrinsic Factor — the carrier your small intestine needs to pull B12 across the intestinal wall and into your bloodstream. No Intrinsic Factor, no absorption. It does not matter how much B12 is in the pill. And then Metformin steps in and blocks what little absorption capacity you have left. So you were swallowing 1000mcg. Then 2500mcg. Watching it turn your urine the color of a highlighter. Feeling nothing change. Your nerves were getting maybe 20mcg of it. The rest was going straight into the toilet. You were not doing it wrong. You were using the right nutrient through a delivery system that was structurally incapable of getting it where it needed to go. A Harvard study tracked Metformin patients for 13 years and found that each year on the medication increases your odds of B12 deficiency by 13 percent. After 10 years on Metformin your risk is more than three times higher than when you started. The American Diabetes Association did not recommend routine B12 monitoring for Metformin patients until 2017. The connection between Metformin and B12 depletion was first documented in 1969. There was a 46 year gap. And somewhere in that gap, your nerves have been quietly starving. Now let me tell you the one thing that changed how I understood all of this. Dead nerves feel nothing. Complete numbness - the inability to feel temperature, pressure, or even injury - means the nerve fiber is gone. There is no signal because there is nothing left to send one. But burning. Tingling. Electric shocks. The guitar string sensation at 3AM. Neurologists call those positive symptoms. They mean the nerve is still firing. Still damaged. Still misfiring. Still desperate for something it is not getting. But still alive. The burning you have been cursing every night is not a death sentence. It is proof that your nerves are still there. Still fighting. Still capable of being fed. And peripheral nerves — unlike your brain and spinal cord — can regenerate. They regrow at approximately one inch per month. But they need the raw materials to do it. The window does not stay open forever. At some point the fiber itself dies. The burning stops — not because you healed. Because there is nothing left to feel. If you are still burning, you still have time. So I kept searching. I had already tried every pill on Amazon. I had the cabinet to prove it. Nerve Restore. Nerve Renew. Alpha-lipoic acid. Acetyl-L-carnitine. B-complex from three different brands. I was taking 12 supplements in the morning like I was building an engine out of vitamins. Six hundred dollars easy. Maybe more. And the burning kept spreading. But this time I was not looking for another supplement. I was looking for a different delivery system entirely. I had read enough forums and enough studies at this point to understand that the problem was not the nutrient. It was the route. Everything I had swallowed had to survive my stomach acid, navigate my intestine, and get past the absorption blockade that Metformin had been building for six years. Nothing was making it through. At 1:47 in the morning I found it. A small company. Not a big brand. Not something with a celebrity on the label or a Super Bowl ad. A sublingual liposomal liquid - drops that go under the tongue, absorb directly through the tissue there into the bloodstream in about 60 seconds, and bypass the stomach completely. The specs made sense immediately. Methylcobalamin - not the cheap synthetic cyanocobalamin in every drugstore bottle that your liver has to convert first and largely cannot after 50. The active form. The one your nerves can actually use directly. Benfotiamine - a fat-soluble form of B1 that is five times more bioavailable than standard B1 and can actually penetrate nerve tissue because nerves are 70 percent fat. P5P - the active form of B6, to address the misfiring. The burning. The shocks. No stomach. No Intrinsic Factor required. No calcium-dependent process for the Metformin to disrupt. I read the clinical data. A double-blind trial overseen by the most decorated diabetic neuropathy researcher in Europe found that methylcobalamin supplementation produced a 235 percent increase in B12 levels — 45 times greater improvement than placebo. Pain scores improved in the treatment group while they got worse in the placebo group. A separate meta-analysis of 16 clinical trials and over 1,100 patients showed nerve conduction velocity improving by more than 6 meters per second. That is not symptom masking. That is measurable nerve regeneration. I ordered it. Week one I noticed nothing. I almost quit. Week two I slept through the night on a Tuesday and woke up confused because I did not know what had pulled me out of sleep. Nothing had. I had just slept. I lay there for a few minutes trying to remember the last time that had happened. I could not. Week three the burning was still there but something had changed about it - quieter, like someone had turned the volume down from a nine to maybe a six. Still present. But no longer the thing that owned the night. Week four my wife put a new rug down in the bathroom and I walked across it barefoot and felt the texture of it under my feet. The specific weave of it. I stood there for a full minute just feeling the rug. I almost cried standing in my own bathroom at seven in the morning because I could feel a rug. Week six the burning went from a six to about a two. I wore socks to bed for the first time in over a year without wanting to tear them off after twenty minutes. Week eight I walked to the mailbox without grabbing the fence on the way out. That might not sound like anything to someone whose feet work the way feet are supposed to work. To me it was the first time in eighteen months that my body did something I asked it to do without making me negotiate. Week twelve I went back to my doctor. He did the pin test. He watched me walk heel to toe down the hallway. He looked at my nerve conduction results — I had gone from 31 meters per second, which is severely abnormal, up to 39. Normal is 45 to 50. He looked at the screen twice. He said: this shows improvement. Diabetic neuropathy does not usually change like this. He asked me what I had changed. I told him. He wrote it down. After six years of handshakes and normal labs and 3AM kitchen trips and bright yellow urine from supplements that were going straight into the toilet — my doctor was writing down something I told him. That was the moment. If your doctor has had you on Metformin for more than three years and has never once tested your B12, I need you to hear this: that is not an accident of oversight. That is a 46 year gap between when the science was documented and when the guidelines caught up. And most doctors are still not doing it. If your feet burn at night. If you grab countertops and door frames without thinking about it. If you have stood in a parking lot and done the quiet mental calculation of where the curbs are and where you can catch yourself if your footing goes wrong. If you have been living with this for years and the numbness that started as something vague in your toes has now moved to the sides of them, the tips of them — a weird, foreign sensation where your own toes no longer feel like they belong to you. If it has crept up your ankles and into your legs and the pain is no longer sharp, it is dull and constant and so familiar you have stopped noticing it the way you stop noticing a sound that never goes away. If you have fallen in your own house because you could not feel what you were stepping on, could not tell if your footing was safe, could not feel the ground give you any information at all about where your body was in space. If a podiatrist has put a needle into your ankle and looked up waiting for you to flinch and you did not flinch because you felt nothing. If you have spent somewhere between $400 and $2,500 on supplements, nerve blends, creams, TENS units and every Amazon product with five stars and the word "nerve" in the title — and you have a cabinet full of half-empty bottles that represent every time you hoped and were wrong. If you have looked at your spouse standing at the window watching you walk to the car and understood without either of you saying a word what that watching means. If you have told yourself this is just how it is now — Your nerves are not dead. They are starving. And the pill you have been taking cannot reach them. The product is called Nuvel. It is a sublingual liposomal B-vitamin complex containing 5000mcg of methylcobalamin, benfotiamine, and P5P. It absorbs in 60 seconds. It bypasses your stomach entirely. It goes directly to the bloodstream and from there directly to the nerve tissue that has been waiting for it. There is a 90 day money back guarantee. If your symptoms do not improve in 12 weeks you get every dollar back. No questions asked. This is not another B12 pill. This is not another nerve blend. This is the nutrient your nerves have been starving for, delivered in the only way your body can actually absorb it, at the clinical dose shown in trials to improve nerve conduction in people exactly like you. The window to reverse nerve damage does not stay open forever. Once the fiber itself dies the signal goes silent - not because you healed but because there is nothing left to feel. You have been doing everything right. You were just given the wrong tool. If you are still burning, you still have time. Click the link below