Can B12 cause nerve pain?

Tingling hands or feet

Vitamin B-12 deficiency may cause “pins and needles” in the hands or feet. This symptom occurs because the vitamin plays a crucial role in the nervous system, and its absence can cause people to develop nerve conduction problems or nerve damage.

Can B vitamins cause nerve damage?

But it's important that you don't take more than 200 milligrams of B6 per day. Research from 2021 shows that taking higher amounts can lead to nerve damage and cause symptoms of neuropathy. Foods rich in B vitamins include: meat, poultry, and fish.

Can too much B12 cause peripheral neuropathy?

Thus, vitamin B12 may be associated with both sensory and motor peripheral nerve function. In older adults, the prevalence of poor peripheral nerve function and neuropathy is high and increases with age^18–21.

Can B12 deficiency cause severe nerve pain?

If you have low vitamin B12 level for a long time, you can have nerve damage. Symptoms of nerve damage include: Confusion or change in mental status (dementia) in severe cases. Problems concentrating.

Can low B12 affect your nerves?

A lack of vitamin B12 can cause neurological problems, which affect your nervous system, such as: vision problems. memory loss. pins and needles (paraesthesia)

Vitamin B12 deficiency and neuropathic pain, by Dr. Andrea Furlan MD PhD

What does B12 do to nerves?

2.3.

Thus, vitamin B12 is especially awarded a function in the DNA synthesis of myelin‐producing oligodendrocytes and the synthesis of myelin.⁴⁸, ⁴⁹, ⁵⁰, ⁵¹ The myelin sheath surrounds the axons of many nerves and serves as an electrical insulation, thereby facilitating fast conduction velocity.

How long does it take for nerves to heal from B12 deficiency?

Once you begin treating your vitamin B12 deficiency, it can take up to six to 12 months to fully recover.

What does B12 neuropathy feel like?

The main neurological symptoms include: paraesthesia [8–12], ataxia [9–12], and limb weakness [9, 11]. The most prevalent psychiatric symptoms associated with B12 deficiency include, delusions [12, 13], irritability [13, 14], and decreased interest [15, 16].

How much B12 should I take for nerve pain?

Although treatment regimens of B12 injections vary, some doctors recommend injections of 1,000 micrograms (mcg) of vitamin B12 daily for five days followed by the same amount given once a week for five weeks, and then a lifelong dose of one injection per month, containing 100 to 1,000 mcg of vitamin B12.

Is B12 neuropathy reversible?

Most problems due to vitamin B12 deficiency can be treated with vitamin B12 supplementation, but nerve damage may not be reversible even after treatment. The sooner your vitamin B12 deficiency is treated, the more likely it is that your symptoms will go away.

What happens if your B12 is too high?

High doses of vitamin B-12, such as those used to treat a deficiency, might cause: Headache. Nausea and vomiting. Diarrhea.

Can too many vitamins cause nerve pain?

But routinely getting an overload of vitamins and minerals can hurt you. Too much vitamin C or zinc could cause nausea, diarrhea, and stomach cramps. Too much selenium could lead to hair loss, gastrointestinal upset, fatigue, and mild nerve damage.

What supplements can cause nerve damage?

People who take too much vitamin B6, popular among health faddists and women with menstrual swelling, risk numbness, loss of sensation and even crippling themselves, doctors warned today.

Can vitamin B make neuropathy worse?

Excess of vitamin B₆ can lead to a sensory neuropathy or neuronopathy, which most obviously occurs with megadoses of vitamin B₆ (greater than 2 g/d), but has also been reported in patients taking lower doses (50 mg/d) over long periods.

Is B12 good for nerve pain?

In many cases, supplementing with vitamin B-12 can reduce the pain associated with neuropathy. More rarely, it can help repair the myelin sheath, depending on the cause of the neuropathy. However, B-12's ability to speed up tissue regeneration and improve nerve function can be helpful for some.

Is it OK to take 1000 mcg B12 daily?

The most common treatment for pernicious anemia is lifelong vitamin B12 injections, but small amounts of vitamin B12 are absorbed without intrinsic factor. One review concluded that taking 1,000 mcg daily is an effective alternative to injections ( 42 ).

Can vitamin B12 make you feel worse?

B12 supplements are usually safe. For adults, doctors recommend 2.4 micrograms a day. If you take more than what you need, your body passes the rest out through your pee. Still, high doses could have some side effects, like dizziness, headache, anxiety, nausea, and vomiting.

Can vitamin B12 cause tingling?

A severe vitamin B12 deficiency may damage nerves, causing tingling or loss of sensation in the hands and feet, muscle weakness, loss of reflexes, difficulty walking, confusion, and dementia. The diagnosis of vitamin B12 deficiency is based on blood tests.

What type of neuropathy does B12 deficiency cause?

Vitamin B₁₂ deficiency can present with neurologic manifestations including subacute combined degeneration of the spinal cord, peripheral neuropathy, optic neuropathy, ataxia, cognitive disturbances, and mood changes, in addition to megaloblastic anemia.

What does low B12 feel like?

Constipation, diarrhea, loss of appetite, or gas. Nerve problems like numbness or tingling, muscle weakness, and problems walking. Vision loss. Mental problems like depression, memory loss, or behavioral changes.

What are symptoms of low B12 levels?

What are signs of vitamin toxicity?

Can too much vitamin B hurt you?

Safety and side effects

However, taking too much vitamin B-6 from supplements can cause: A lack of muscle control or coordination of voluntary movements (ataxia) Painful, disfiguring skin lesions. Heartburn and nausea.

What medications should not be taken with B12?

Certain medications can decrease the absorption of vitamin B12, including: colchicine, metformin, extended-release potassium products, antibiotics (such as gentamicin, neomycin, tobramycin), anti-seizure medications (such as phenobarbital, phenytoin, primidone), medications to treat heartburn (such as H2 blockers ...