Guide
Tingling and Numbness Guide: Causes, Red Flags and When to See a Doctor
Tingling and numbness in the hands or feet most often come from nerve damage, and diabetes is the leading cause. Low vitamin B12, alcohol, thyroid, kidney or liver disease, some medicines and too much vitamin B6 are others. See a doctor promptly, and call 911 for sudden numbness or weakness on one side of the body.
Written by the Nerve Savior editorial teamUpdated
The basics
What causes tingling and numbness in the hands and feet?
Most often, irritated or damaged nerves. When the long nerves to your hands and feet are affected, doctors call it peripheral neuropathy, and it affects millions of people in the U.S. (NINDS, Peripheral Neuropathy).
Sensory nerves carry touch, temperature, vibration and pain. When they misfire, you may feel pins and needles, burning, numbness, or less feeling for touch and vibration, usually starting in the feet (NINDS, Peripheral Neuropathy).
Tingling is a symptom, not a diagnosis. The same feeling can come from a short-lived pinched nerve, a vitamin shortage or years of high blood sugar. That is why the cause matters more than any product sold for nerves, including Nerve Savior.
Common causes
Which conditions most often cause nerve tingling?
Diabetes leads the list. NINDS says about two-thirds of people with diabetes have mild to severe nerve problems (NINDS, Peripheral Neuropathy), and the NIDDK puts peripheral neuropathy at one-third to one-half (NIDDK, Diabetic Neuropathies). Many other causes are treatable once found.
| Cause | What to know | How it is usually found |
|---|---|---|
| Diabetes or metabolic syndrome | The most common cause; usually starts in the feet and legs | Blood sugar tests |
| Low vitamin B12 | Numbness and tingling, sometimes without anemia; more common with age, metformin or acid reducers | B12 blood test |
| Too much vitamin B6 | Long-term high intake can cause sensory neuropathy | Review of every supplement you take |
| Alcohol | Up to half of long-term heavy drinkers develop nerve damage | An honest drinking history |
| Thyroid, kidney or liver disease | Listed causes of peripheral neuropathy | Blood tests your doctor orders |
| Autoimmune disease or infection | Listed causes that need their own treatment | Exam and targeted tests |
| Medicines and toxins | Chemotherapy and some other drugs; toxic exposures | Medicine and work history |
Red flags
When is tingling or numbness an emergency?
Sudden numbness or weakness on one side of the body is an emergency, because it can be a stroke. Call 911 right away; do not wait to see if it passes.
Sudden numbness or weakness on one side of the body needs emergency care, even if it fades within minutes.
Other signs need a prompt doctor's visit, even if they are not emergencies:
- Tingling that is new, spreading or getting worse.
- Weakness, stumbling or dropping things.
- A sore, blister or wound on a foot you cannot feel well.
- Tingling or burning that keeps you awake.
Seeing a doctor
When should you see a doctor for tingling in your feet?
Soon. Mayo Clinic advises seeking medical care right away for tingling, weakness or pain in the hands or feet (Mayo Clinic, Peripheral Neuropathy Symptoms). The CDC says people with diabetes should see a doctor or podiatrist right away for tingling, burning or pain in the feet, or a loss of feeling for touch, heat or cold (CDC, Diabetes and Your Feet).
Early care matters because unnoticed numbness leads to problems. Mayo Clinic lists burns and skin injuries you do not feel, infections and falls as complications (Mayo Clinic, Peripheral Neuropathy Symptoms).
Write it down
Where you feel it, when it started, how strong it is, and what makes it better or worse.
Bring every bottle
List all medicines and supplements, with their B6 amounts where printed.
Ask about tests
Ask whether blood sugar, B12 and thyroid tests fit your symptoms.
Vitamins
Can vitamins cause or fix tingling?
Both. Low B12 can cause numbness and tingling, and too much B6 over time can cause it as well (NIH ODS, Vitamin B12) (NIH ODS, Vitamin B6).
B12 deficiency affects 3% to 43% of older adults living at home, depending on the definition, and metformin and acid reducers can lower B12 (NIH ODS, Vitamin B12). Adults need just 2.4 mcg a day. A blood test shows whether you are low, and a known dose can follow.
B6 works the other way. The U.S. upper limit is 100 mg a day, and Europe set 12 mg a day in 2023 (NIH ODS, Vitamin B6). Australia has logged 250 reports of nerve problems linked to B6 and requires a stop-if-tingling warning on products above 10 mg a day (TGA Australia, Vitamin B6 safety update). The full story is in the B6 and nerves guide, and testing advice is in the B12 testing article.
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How should you care for numb feet every day?
Numb feet cannot warn you about injuries, so your eyes have to. Follow the daily rhythm.
- Mid-morning, about 10:30
2 capsules between breakfast and lunch, with water.
- Evening foot check
Look for cuts, blisters or redness every day, especially with diabetes.
- A walk
Regular walking is part of standard nerve care.
- Sleep
Rest, and keep alcohol low: heavy drinking damages nerves.
Foot care (CDC, Diabetes and Your Feet), exercise (Mayo Clinic, Peripheral Neuropathy Treatment), alcohol (MedlinePlus, Alcoholic Neuropathy).
The CDC says about half of people with diabetes have some nerve damage, most often in the feet and legs (CDC, Diabetes and Your Feet). Its daily habits work for anyone with numb feet:
Look every day
Check your feet for cuts, blisters, redness or sores every day.
Wash warm, not hot
Wash your feet in warm water, never hot, since numb feet may not sense heat.
Never go barefoot
Protect your feet with shoes, even around the house.
Trim straight across
Cut toenails straight across to avoid ingrown edges.
Keep moving
Walking, cycling or swimming are low-impact choices.
Yearly exam
Get a complete foot exam at least once a year.
Habits from the CDC (CDC, Diabetes and Your Feet). More in the foot care article.
Daily habits
What habits support healthy nerves?
Steady blood sugar, regular movement, less alcohol and no smoking. NINDS lists exercise, healthy eating, avoiding alcohol and not smoking as supportive steps (NINDS, Peripheral Neuropathy), and the American Diabetes Association calls keeping blood glucose on target the best defense against diabetic neuropathy (American Diabetes Association, Neuropathy).
Mayo Clinic suggests walking about three times a week (Mayo Clinic, Peripheral Neuropathy Treatment). If you drink heavily, stopping is the most important first step for alcoholic neuropathy (MedlinePlus, Alcoholic Neuropathy).
Supplements
Can a supplement like Nerve Savior help tingling?
No study has tested Nerve Savior for tingling or numbness. Its 600 mg blend holds memory herbs, eye nutrients, pink salt, cinnamon, green tea extract and two B vitamins, with no single amounts printed.
The B12 could matter if you are low, but a test tells you that. The B6 is the open question: it sits seventh in the blend, so a serving could hold up to about 86 mg by label order, and the label does not say. If you already take a B-complex, add up your B6 first.
The back label asks anyone with a medical condition to consult a physician first. Tingling with an unknown cause counts. See how it compares with options that have evidence in Nerve Savior vs neuropathy treatments.
Your plan
What is the safest first step for new tingling?
Book a doctor's visit, bring your symptom notes and every bottle you take, and ask about blood sugar, B12 and thyroid tests. Start the daily foot check tonight. Decide on any supplement after you know the cause.
FAQ
Tingling and numbness FAQ
What is the most common cause of tingling in the feet?
Diabetes is the most common cause of nerve tingling in the feet in the U.S. Other common causes include low vitamin B12, heavy alcohol use, thyroid or kidney disease, certain medicines and too much vitamin B6. A doctor can test for the likely ones.
When should I worry about numbness in my hands?
See a doctor soon for any new, spreading or worsening numbness, and call 911 if numbness or weakness comes on suddenly on one side of the body. That can be a sign of stroke and needs emergency care.
Is tingling in my feet an early sign of diabetes?
It can be. Diabetes is the leading cause of peripheral neuropathy, and nerve damage often starts in the feet. Tingling has many other causes too, so ask your doctor about a blood sugar test rather than assuming.
Can low vitamin B12 cause pins and needles?
Yes. B12 deficiency can cause numbness and tingling in the hands and feet, sometimes before anemia shows. It is more common in older adults and in people taking metformin or acid reducers. A simple blood test checks your level.
Can taking too much vitamin B6 cause numbness?
Yes. Long-term high intake of vitamin B6 can cause sensory neuropathy, with numbness and tingling. The U.S. upper limit is 100 mg a day and Europe's is 12 mg. Add up B6 from every supplement you take.
Can drinking alcohol cause numb feet?
Yes. MedlinePlus says up to half of long-term heavy drinkers develop alcoholic neuropathy, with numbness, tingling and pain in the arms and legs. Stopping alcohol is the most important first step, and the damage may worsen if drinking continues.
Will Nerve Savior stop my tingling feet?
There is no evidence that it will. No trial has tested Nerve Savior, and most of its ingredients were studied for memory or eyes. Find the cause of your tingling with a doctor first, since many causes have proven treatments.
Who wrote this
Written and reviewed by
Plain-language pages built from the label, the sales listing and linked public health sources.
Last updated . Read our editorial standards and how we check reviews. This website is run by Thenervesavior, a U.S. stocking partner, not by the manufacturer or the distributor named on the label. We earn money when you buy through our order links.
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