Can B12 cause neuropathy?

Yes, vitamin B12 deficiency is a well-known and common cause of peripheral neuropathy (nerve damage), leading to symptoms like numbness, tingling, pain, and weakness, because B12 is crucial for maintaining the myelin sheath that protects nerves. While deficiency is a primary cause, prolonged, severe deficiency can lead to irreversible damage, highlighting the importance of early diagnosis and treatment, which often involves supplements or injections to restore nerve function and prevent permanent harm.

Can neuropathy be caused by vitamin B12?

A lack of B12 damages the myelin sheath that surrounds and protect nerves. Without this protection, nerves cease to function properly and conditions such as peripheral neuropathy occur. Even B12 deficiency that is relatively mild may affect the nervous system and the proper functioning of the brain.

Can too much B12 cause numbness?

Long or prolonged intake of high doses of vitamin B12 can lead to numbness or tingling sensation which usually occurs in the right side of your body. The presence of a tingling sensation or numbness are one of the first signs of vitamin B12 overdose.

What does B12 neuropathy feel like?

Peripheral neuropathy is the most common presentation of vitamin B12 deficiency. Depending upon the type of nerve involved, it may present as pain, numbness, tingling, loss of sensation, decreased motor activity, or decreased muscle mass.

Does vitamin B12 interact with amlodipine?

There were no interactions found between amlodipine and Vitamin B12. However, this does not necessarily mean no interactions exist. Always consult your healthcare provider.

How Much B12 is TOO MUCH? - The Nerve Doctors

What medications should you not take B12 with?

You should be cautious taking Vitamin B12 with medications that reduce stomach acid (like omeprazole, famotidine), diabetes drugs (metformin), antiseizure meds (phenytoin, carbamazepine), colchicine (for gout), aminosalicylic acid, and potentially high doses of Vitamin C, as these can hinder B12 absorption or interfere with its effects. Always consult your doctor or pharmacist about potential B12 interactions with your prescriptions. 

Is it okay to take B12 if you have high blood pressure?

Vitamin B12 is generally safe for blood pressure and may even offer benefits (like lowering stroke risk by reducing homocysteine), but high doses could potentially raise blood pressure in some people, so consulting a doctor is crucial before starting supplements, especially if you have hypertension or are on medication, as individual reactions vary and excess can cause issues like heart palpitations or anxiety. 

Is B12 neuropathy reversible?

Yes, nerve damage from vitamin B12 deficiency can often be reversed or significantly improved with prompt treatment (B12 supplementation), but if the deficiency is severe or long-standing, some neurological damage, like myelin loss, may become permanent. Early diagnosis and treatment, especially within the first few months, lead to better outcomes, with many seeing improvement within weeks or months, though full recovery isn't guaranteed, say experts. 

What triggers neuropathy to flare up?

Neuropathy flare-ups are triggered by poor blood sugar control, stress, cold/heat, physical inactivity, certain medications, alcohol, infections, and autoimmune issues, causing increased pain, numbness, or burning, often worsened at night, and can be managed by controlling underlying conditions, diet, and lifestyle changes like staying warm and active. 

What are the negatives to taking B12?

While generally safe, excessive Vitamin B12 intake or deficiency can cause issues; disadvantages of excess B12 (usually from supplements) include headaches, acne, diarrhea, potential increased cancer/mortality risks, and heart issues, while deficiency leads to neurological problems (memory loss, tingling), fatigue, anemia, and mood changes, with some deficiency symptoms potentially becoming permanent. 

How do you feel if your B12 is too high?

Too much B12 usually doesn't cause severe issues as excess is flushed out, but high doses (especially injections) can lead to headaches, dizziness, fatigue, digestive upset (nausea, diarrhea), insomnia, anxiety, or skin rashes, with rare severe effects like heart palpitations or nerve issues in extreme cases, often resolving by stopping supplements.
 

What kind of B12 is best for seniors?

Active B12 is generally considered to be the best form of B12 for seniors for several reasons. Metabolically active forms of B12 such as methylcobalamin and adenocobalamin require no further conversion in the body.

Does B12 make your feet tingle?

Yes, low vitamin B12 is a well-known cause of tingling, numbness, and burning sensations (paresthesia) in the hands and feet, as it damages the protective myelin sheath around nerves, leading to peripheral neuropathy. This nerve issue often starts in the extremities and can worsen, causing balance problems, weakness, and fatigue, but it's treatable with supplements or injections, so seeing a doctor for a diagnosis is crucial.
 

How long does it take for B12 to repair nerves?

Nerve healing from B12 deficiency starts within weeks, with most improvement seen in 1-3 months, but can take 6-12 months or longer, especially for severe or long-standing damage, with some residual disability possible if treatment is delayed past a few months, emphasizing early and consistent B12 therapy for best outcomes. 

What is clinically one of the first signs of vitamin B12 deficiency?

Symptoms include weak muscles, numbness, trouble walking, nausea, weight loss, irritability, fatigue, and increased heart rate.

What is the best vitamin that you can take for neuropathy?

For neuropathy, B vitamins (especially B1, B6, B12) are crucial for nerve health, along with antioxidants like Alpha Lipoic Acid (ALA) and Magnesium, which reduce pain and oxidative stress, while Vitamin D also supports nerve function; however, always consult a doctor before starting supplements. 

Why did I suddenly get neuropathy?

Sudden neuropathy, or nerve damage, can stem from acute issues like trauma/injury (falls, pressure), certain infections (shingles, Lyme), some medications, autoimmune flares (Guillain-Barré), exposure to toxins, or metabolic crises, often occurring when a nerve is compressed or injured, leading to rapid onset of symptoms like numbness, tingling, or weakness, requiring prompt medical diagnosis to identify the trigger and prevent further damage.
 

What can reverse neuropathy?

You can potentially reverse or significantly improve neuropathy by treating the root cause, like controlling blood sugar for diabetes, supplementing B vitamins (B1, B6, B12) for deficiencies, or managing alcohol/smoking, alongside lifestyle changes (diet, exercise) and therapies such as physical therapy, nerve stimulation, or even surgery for pinched nerves, though severe damage may only see partial recovery.
 

What common household item is linked to neuropathy?

Yes, certain household items contain chemicals like quaternary ammonium compounds (in disinfectants, softeners), organophosphate flame retardants (furniture, electronics), phthalates, parabens, and heavy metals (mercury in some creams) that are linked to neuropathy or damage protective nerve cells (oligodendrocytes), causing symptoms like pain, numbness, tingling, or loss of function, especially with chronic exposure.
 

Can too much B12 cause neuropathy?

While B12 deficiency is a well-known cause of neuropathy, extremely high levels from excessive supplementation can also lead to nerve issues, including numbness, tingling, and muscle spasms, though this is less common and often linked to very high doses or pre-existing conditions, with some cases showing improvement after stopping supplements. Neuropathy has many causes, so high B12 usually points to deficiency or other issues, but toxicity symptoms mirror deficiency symptoms, so medical evaluation is crucial. 

Does foot neuropathy ever go away?

Foot neuropathy can sometimes go away or significantly improve, especially if caught early and the underlying cause (like vitamin deficiency, injury, or infection) is treated, but severe or long-term nerve damage is often permanent, requiring management to stop progression and relieve symptoms like pain, tingling, and numbness. Early diagnosis and treating the root cause are crucial for the best outcomes, as untreated neuropathy usually worsens, though some advanced treatments aim to reverse damage and restore function. 

Why do I feel worse after my B12 injection?

If you feel worse after your B12 injection, you're not alone, and it doesn't mean something is wrong with the treatment. In many cases, it's a temporary response as your body starts healing and adjusting to better nutrition.

What people should not take B12?

They need to know if you have any of these conditions:

• Anemia.
• Kidney disease.
• Leber's disease.
• Malabsorption disorder.
• An unusual or allergic reaction to cyanocobalamin, cobalt, other medications, foods, dyes, or preservatives.
• Pregnant or trying to get pregnant.
• Breast-feeding.

What food is highest in B12?

The foods highest in Vitamin B12 are organ meats (like liver and kidney) and shellfish (especially clams), offering thousands of percent of the daily value in small servings, with fortified cereals, dairy, fish (salmon, tuna, sardines), and eggs also being excellent sources. For vegans, fortified foods like nutritional yeast and plant milks are key, as B12 is naturally found in animal products.
 

What are the symptoms of too much B12?

Symptoms of too much B12 are generally mild and include headaches, nausea, diarrhea, dizziness, weakness, fatigue, and tingling in hands/feet, but serious issues like anxiety, heart palpitations, high blood pressure, insomnia, skin rashes (acne/rosacea), and potential blood clots can occur, especially with injections or extremely high intake, though most excess is flushed out.