Peripheral nerves, the ones in the arms, legs, hands and feet, can regrow after damage, but slowly: a 2014 review in BioMed Research International puts the rate at about 1 mm a day. No food, oil or supplement speeds this up. What does help is treating the cause: controlling blood sugar, correcting vitamin B12 deficiency, stopping alcohol, relieving a compressed nerve and doing physiotherapy.
Can damaged nerves repair themselves?
Peripheral nerves can repair themselves, but only partly and only slowly. Grinsell and Keating, in a 2014 review in BioMed Research International, write that after a peripheral nerve injury the cut-off part of the fibre breaks down within 24 to 48 hours (Wallerian degeneration) and then "slow axonal regeneration follows at a rate of 1 mm/day". At that speed a nerve regrowing from the knee to the foot needs many months. The same review states that peripheral nerve regeneration "is slow and usually incomplete", and that younger people and injuries closer to the hand or foot recover better.
How much comes back depends on the type of injury. A nerve that is only bruised or compressed (neurapraxia) keeps its fibre intact and, per the review, resolves completely within about 12 weeks once the insulating myelin is restored. A crushed nerve (axonotmesis) regrows along its old sheath, and incomplete recovery is common. A nerve that is cut through (neurotmesis) does not regrow on its own; the review says no spontaneous regeneration occurs without surgery. Muscle that has lost its nerve supply has a window of roughly 12 to 18 months to be reconnected before it is replaced by scar.
The NHS is blunter about neuropathy from disease: not all underlying causes can be treated, and in some people the damage is permanent or worsens. So "repair naturally" really means two things: remove what is damaging the nerve, and give the slow regrowth a chance.
What causes nerve damage in the first place?
Diabetes is the most common cause of peripheral neuropathy, according to both the NHS and Cleveland Clinic. The NIDDK says about one-third to one-half of people with diabetes have peripheral neuropathy, and that years of high blood glucose and high blood fats injure the nerves. In India the picture is similar: a 2014 study of 2,006 patients at a north Indian tertiary hospital, published in the Journal of Diabetes Investigation, found diabetic peripheral neuropathy in 29.2% of people with type 2 diabetes, rising with age and with longer duration of diabetes.
The NHS lists the other common causes:
- Low vitamin B12 or other vitamins (common in people on a vegetarian or vegan diet without supplements, and in pernicious anaemia).
- Excessive alcohol drinking for years; MedlinePlus says up to half of long-term heavy drinkers develop alcoholic neuropathy.
- Physical damage to the nerve, including compression, as in carpal tunnel syndrome.
- An underactive thyroid, chronic kidney or liver disease.
- Infections such as shingles, HIV and leprosy-type conditions, and inflammatory conditions such as Guillain-Barré syndrome.
- Medicines: some chemotherapy, long courses of metronidazole or nitrofurantoin, phenytoin, amiodarone.
- Toxins such as arsenic, lead and mercury.
Sometimes no cause is found; the NHS calls this idiopathic neuropathy. The cause matters more than any home remedy, because it decides whether the nerve can recover at all.
What actually helps nerves recover?
Treating the cause is what helps; the NHS says treatment is more successful for some causes than others.
| Cause | What helps | What the sources say about recovery |
|---|---|---|
| Diabetes | Blood glucose control through diet, activity and medicines | NHS: helps stop neuropathy getting worse |
| Vitamin B12 deficiency | B12 injections at first, then tablets or regular injections | NHS: nervous-system problems can be permanent if treatment is late |
| Alcohol | Stop drinking; thiamine and folate supplements | MedlinePlus: damage usually permanent, but stopping prevents worsening |
| A medicine | Stopping or changing the medicine with the prescriber | NHS: may improve once the medicine is stopped |
| Compression (e.g. carpal tunnel) | Splints, physiotherapy, surgery to free the nerve | Grinsell & Keating: compression injuries can resolve fully in about 12 weeks |
For diabetes the practical target is a well-controlled HbA1c, checked every three months, with an endocrinologist or general physician adjusting treatment. For B12 deficiency the NHS advises treatment as soon as possible, because some nerve damage becomes irreversible. For alcohol, MedlinePlus calls stopping "the most important first step".
A physiotherapist does the rest: keeping joints mobile, strengthening weak muscles and training balance while the nerve regrows. Cleveland Clinic adds that some neuropathies can be stopped or reversed if treated quickly, and that the longer and more severe the damage, the less reversible it is.
Do foods, supplements or acupuncture repair nerves?
No cited authority says that any food, oil, mushroom or herb repairs nerves. The old version of this article listed avocado, quinoa, lion's mane mushroom, ginger and essential oils; none of the NHS, NIDDK, Cleveland Clinic or MedlinePlus pages on neuropathy mention them, and this guide does not repeat those claims.
Supplements have been tested properly, with mixed results:
- Alpha-lipoic acid, widely sold in India for diabetic neuropathy, was reviewed by Cochrane in 2024. Across three trials with 816 participants, the authors concluded it "probably has little or no effect on neuropathy symptoms or adverse events at six months" (moderate-certainty evidence).
- Vitamin B12 helps only if you are deficient. The NHS treats a proven deficiency with injections; it does not recommend B12 for neuropathy with normal levels.
- Thiamine (B1) and folate are given to people with alcoholic neuropathy because heavy drinking depletes them, says MedlinePlus; this treats the deficiency rather than regrowing the nerve.
A balanced diet, regular walking and not smoking are sensible because they help blood sugar and circulation, and the NHS lists smoking and heavy drinking as factors that worsen diabetic neuropathy. Treat them as support for the real treatment, not as the treatment. None of the sources opened for this guide found acupuncture or massage oils to regenerate nerves; capsaicin cream, which the NHS does mention, eases pain by blocking pain signals and does not repair the nerve.
How is nerve damage diagnosed in India?
Diagnosis starts with blood tests for the cause and a nerve conduction study to measure the damage. The NHS says a GP will order blood tests especially to check for diabetes or vitamin B12 deficiency, and may refer you to a neurologist.
The tests you are likely to be asked for:
- HbA1c (three-month average blood sugar) and fasting glucose. See the HbA1c test cost page for price ranges by city.
- Vitamin B12, and thiamine and folate levels if you drink heavily (MedlinePlus).
- Thyroid function, kidney and liver function, since the NHS lists underactive thyroid and chronic kidney or liver disease as causes.
- Nerve conduction study (NCS/NCV): electrodes on the skin deliver tiny electric pulses and the machine measures how fast and how strongly the signal travels; the NHS describes small shocks that most people find uncomfortable but brief. See NCV test cost.
- Electromyography (EMG): a thin needle in the muscle records its electrical activity; NCS and EMG are usually done together.
- Nerve biopsy: rarely needed, per the NHS.
A neurologist interprets the NCV and EMG together: the pattern shows whether the damage is to the myelin (often recoverable), to the axon (slower, partial recovery), or to a single compressed nerve that surgery could free. Government medical college hospitals run NCV at low cost; district hospitals may refer you to one.
How is nerve pain treated while the nerve heals?
Nerve pain is treated with neuropathic pain medicines, because the NHS says standard painkillers often do not work. The main options the NHS names are amitriptyline, duloxetine, pregabalin and gabapentin. Doses start low and rise gradually; tiredness, dizziness and a "drunk" feeling are common at first and should ease after a week or two. If the first medicine does not help, another may. These are prescription medicines and a doctor chooses between them based on your other conditions.
For pain in one area, the NHS mentions capsaicin cream or patches, which work by stopping nerves sending pain signals. It can cause burning and should not be used on broken skin.
For numb feet, protection matters as much as pain relief. MedlinePlus advises people with alcoholic neuropathy, and the NHS advises people with diabetes, to check feet daily, test bath water temperature with the hand, wear well-fitting footwear and see a doctor about any foot ulcer that is not healing. Physiotherapy and walking aids help with weakness and balance, which reduces falls.
What these treatments do not do is regrow the nerve. They make the months of slow regeneration, or the years of living with permanent damage, more bearable.
When should you see a neurologist?
See a doctor early, because the NHS says early diagnosis gives a better chance of limiting the damage. Its triggers for seeing a GP are early signs such as pain, tingling or loss of sensation in the feet, loss of balance or weakness, or a foot ulcer that is not healing. People with diabetes should have their feet and nerves checked at every review even without symptoms.
See a doctor the same day if weakness spreads quickly over hours or days, if you cannot lift your foot or grip objects, if numbness follows an injury, or if you have trouble breathing or swallowing. The NHS lists Guillain-Barré syndrome, which can progress fast, among the causes of neuropathy. In an emergency call 112 or go to the nearest government hospital casualty.
A neurologist is the right specialist once the GP suspects neuropathy, especially when the cause is unclear, the NCV shows axonal damage, or symptoms progress despite sugar control. In India, neurology departments at government medical colleges and AIIMS-type institutes see these cases without referral fees; private neurologists are listed on HealthFinder by city.
The honest summary: remove the cause, protect the limb, treat the pain, keep the muscles working, and give the nerve the months it needs. This guide is general information from the sources listed below, not medical advice; a registered doctor makes decisions with you.
