Nerve Pain Supplements: What the Evidence Says About B12, Alpha-Lipoic Acid and More
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Short answer
Mayo Clinic says small studies suggest alpha-lipoic acid may help nerve pain, numbness and tingling but "results are mixed," that it is unclear whether vitamin B-12 helps diabetic neuropathy unless you are low in B-12, and that more research is needed on acetyl-L-carnitine. Nerve symptoms can have causes a supplement will not fix, so see a doctor first.
What Mayo Clinic says about common nerve-pain ingredients
| Ingredient | Evidence | Cautions |
|---|---|---|
| Vitamin B-12 | "Unclear" whether it helps diabetic neuropathy; may help mainly if you are low in B-12 | Metformin, proton pump inhibitors and H-2 blockers can lower B-12 levels |
| Alpha-lipoic acid | Small studies suggest it may help pain, numbness and tingling; results mixed, larger studies needed | High doses might cause seizures in people with thiamin (B-1) deficiency; avoid with heavy alcohol use |
| Acetyl-L-carnitine | Some small studies reported less pain and better nerve tests; more research needed | Dry mouth, poor appetite, insomnia, headache, agitation; Mayo advises against use with warfarin and thyroid hormone medicine |
Mayo's page does not cover benfotiamine, so we make no claim about it here beyond noting it is a form of vitamin B-1 that some supplements use.
See a doctor first if you have
- Numbness or tingling that is new, spreading or getting worse
- Weakness, loss of balance, or loss of bladder or bowel control (seek urgent care)
- Diabetes, or symptoms that began after starting a new medicine
- Foot sores or injuries you cannot feel
Diabetes medicines and kidney conditions can interact with some supplements, which is why Mayo advises speaking with your health care professional before adding one.
How to judge a nerve supplement label
- Check the doses against the ingredients above, and whether the label lists a source for each.
- Be skeptical of "regrow nerves" or "reverse neuropathy" wording. We found no independent source supporting those claims for supplements.
- Look for a clear refund policy and keep your receipt. See our guarantee comparison.
- Take the full label to your pharmacist. Our blood-thinner checklist works for any supplement.
Our nerve supplement reviews
We review Nerve Armor, Nerve Fresh, Nerve Revive 360 and NuNerve. Their claims come from the makers; none of this page's sources evaluate those specific products.
Frequently asked questions
Do supplements help neuropathy?
Mayo Clinic says evidence is limited or mixed for vitamin B-12, alpha-lipoic acid and acetyl-L-carnitine in diabetic neuropathy, and larger studies are needed.
Does alpha-lipoic acid help nerve pain?
Mayo Clinic says small studies suggest it may help pain, numbness and tingling, but results are mixed and larger studies are needed.
Can vitamin B-12 help neuropathy?
Mayo Clinic says it is unclear, and supplements may help mainly in people who are low in B-12. Some medicines, such as metformin, can lower B-12 levels.
When should I see a doctor for tingling or numbness?
See a doctor if it is new, spreading or worsening, or if you have weakness, balance problems or diabetes. Seek urgent care for loss of bladder or bowel control.
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Sources
This page is general information, not medical advice. Talk to your doctor or pharmacist before starting or changing any treatment, especially if you take prescription medication.