How much B12 a day for nerve repair?

For nerve repair, typical therapeutic B12 doses are much higher than the daily requirement, often ranging from 1000 mcg to 2000 mcg (1-2 mg) daily, especially for forms like methylcobalamin, to help heal nerve damage, with some studies even using up to 5000 mcg or more for severe cases, but it's crucial to work with a doctor to find the right amount, as needs vary.

How much B12 to take for nerve damage?

Dosage. Take 1000-5000mcg daily of the active forms of B12 (methyl-cobalamin and adenysl-cobalamin) for 1 month and then re-assess symptoms. Vitamin B9 (folate) and vitamin B6 work together with B12, supplementing these at the same time often gives better results.

Is 1000mg of B12 daily too much?

No, 1000 mcg (or 1 mg) of Vitamin B12 daily is generally not too much for most people, as it's a water-soluble vitamin, and your body flushes out what it doesn't need, with a very low risk of toxicity, though absorption is limited. While higher doses (like 1000 mcg) are often used to correct deficiencies and are considered safe, they're much higher than the small daily needs, so it's best to consult a doctor to determine if you need it and to rule out underlying issues like kidney problems, notes a health professional fact sheet and this article from the National Institutes of Health (NIH). 

How long does it take for B12 to heal nerves?

1 to 3 Months: Neurological symptoms, such as tingling or memory issues, often start to improve. For severe cases, this process may take longer. 3 to 6 Months or More: By this stage, most individuals experience significant recovery. However, some nerve damage from long-term deficiency may be permanent.

Is B12 good for diabetics?

Vitamin B12 replacement has been shown to cause symptomatic improvement among patients with severe diabetic neuropathy. One meta-analysis showed that if used either alone or in combination with vitamin B complex, there was a significant improvement in the somatic symptoms like pain and paraesthesias.

How Much B12 is TOO MUCH? - The Nerve Doctors

Does vitamin B12 lower A1c?

Anemia and DM are diseases that are common in the society and constitute a public health problem, and they are highly likely to be seen together in the same patient [12]. Studies showed that the HbA1c level decreases with the treatment of vitamin B12 deficiency anemia [13–15].

How much B12 should a senior take?

The recommended daily amount of vitamin B-12 for adults is 2.4 micrograms (mcg). Older adults may need to eat more vitamin B-12. The ability to absorb vitamin B-12 lowers as a person gets older. Older adults may need to eat 10 to 12 mcg of vitamin B-12 to get enough of this vitamin.

What happens to your body when you start taking vitamin B12?

Taking Vitamin B12 helps your body create red blood cells, synthesize DNA, maintain healthy nerve and brain function, and convert food into energy, preventing fatigue and weakness from megaloblastic anemia. If you have a deficiency, you might feel increased energy, better mood, and improved focus, but for those with sufficient levels, benefits are less pronounced, though it supports overall cell health, mood, heart health (by lowering homocysteine), and helps with pregnancy and bone health, with excess typically flushed out.
 

What are the first signs of B12 deficiency?

Early signs of Vitamin B12 deficiency often include extreme fatigue, pale or yellowish skin, shortness of breath, heart palpitations, a smooth/sore tongue, and pins-and-needles sensations in hands or feet, stemming from its role in red blood cell production and nerve health. Other key indicators are memory problems, mood changes like depression or irritability, balance issues, mouth ulcers, and digestive problems like nausea or diarrhea, which develop slowly and worsen over time.
 

Can nerve damage caused by B12 deficiency be reversed?

Schwann cells can help damaged nerves regenerate and restore function. On average, damaged nerves can grow back at a rate of about 1 inch per month or 1 millimeter per day. Surgery is needed if there is significant scar tissue or a gap between cut nerve ends.

How do you feel if your B12 is too high?

Feeling too much Vitamin B12 can manifest as headaches, dizziness, digestive upset (diarrhea, nausea, vomiting), skin issues (rashes, acne, itching), insomnia, fatigue, and anxiety or nervousness, though it's generally considered safe as excess is excreted in urine, and these effects usually arise from extremely high doses or injections, not food.
 

Is 1000 mcg the same as 2.4 mcg?

A: 2.4mcg is only approximately 1/250th of 1000mcg.

Can I take 10,000 mcg of B12 a day?

Water soluble vitamins, like B12, can be tolerated at higher doses without adverse effects upon the body, and the National Academy of Medicine has not established an upper limit of Vitamin B12 intake.

Should I take 500 or 1000 mcg B12?

The recommended daily amount (RDA) varies, depending on age and other factors, but while the recommended dose for an adult is 2.4 mcg (micrograms), B12 vitamin pills are also sold in doses of 5 to 25 mcg, and even 500 mcg to 1,000 mcg or more; while the latter is usually considered safe, the body will absorb only a ...

What is the real enemy of neuropathy?

Eating a balanced diet. Certain vitamin deficiencies, especially vitamin B12 deficiency, can affect your nervous system and cause major problems. Other vitamins, especially B6, are toxic and cause peripheral neuropathy at high levels. Staying physically active and maintaining a healthy weight.

What is the number one neuropathy supplement?

While no single "number one" supplement works for everyone, Alpha-Lipoic Acid (ALA) is frequently cited as the most studied and effective for improving nerve function and reducing pain in neuropathy, especially diabetic neuropathy, alongside essential B vitamins (like B1, B6, B12) for nerve repair, and potentially Acetyl-L-Carnitine (ALC) for nerve health. It's crucial to consult a healthcare provider before starting any supplement to determine the right approach for your specific type of neuropathy, as deficiencies (like B vitamins, Vitamin E) can also cause it.
 

What do you crave when your B12 is low?

B12 deficiency can trigger specific food cravings, often for animal products like meat, fish, eggs, and dairy, because the body seeks these rich sources to compensate for the lack of the vitamin, which is crucial for energy, nerve, and brain health. You might also experience cravings for salty foods, sugar, or even non-food items (pica) due to related iron deficiencies or impacts on neurotransmitters, alongside fatigue, mood changes, and neurological symptoms like tingling. 

Why do I feel so good after taking B12?

Boost Energy Levels and Enhance Metabolism

Vitamin B12 plays a crucial role in enhancing metabolic rate and energy production. It helps convert carbohydrates, fats, and proteins into energy, which can help boost energy levels and enhance metabolism.

What food is highest in B12?

The foods highest in Vitamin B12 are organ meats like liver and kidneys, followed by shellfish such as clams, mussels, and oysters, with fortified cereals and nutritional yeast offering significant non-animal sources, while fish (salmon, sardines), dairy, and eggs are also excellent, easily absorbed sources. A small serving of lamb liver can provide thousands of percent of your daily needs, while clams offer immense amounts of B12 and iron.
 

Who should not take B12?

People with Leber's disease, a history of severe allergic reactions to B12 or cobalt, or certain blood disorders (like polycythemia vera) should generally avoid B12 supplements or use them with extreme caution; also, those with serious kidney disease, heart issues, or bleeding problems, and those on certain medications like metformin, should consult their doctor, as B12 can worsen some conditions or interfere with treatments. 

What is the best B12 for seniors?

Active B12 is generally considered to be the best form of B12 for seniors for several reasons. The metabolically active forms of B12 - methylcobalamin and adenosylcobalamin - require no further conversion in the body.

What happens to your weight when you take B12?

In fact, some studies have even suggested the opposite. For instance, one study noted that individuals who regularly took vitamin B12 supplements gained between 2.5 to 17 fewer pounds (1.2 to 7.7 kg) over a decade than those who didn't supplement.

Does B12 affect sleep?

In conclusion, our results show that lower vitamin B12 was associated with insomnia symptoms and sleepiness in specific groups of participants. However, further research with objective measurements of sleep is crucial to assess the relationship between sleep and vitamin B12.