Readers ask: What Reactions Use Vitamin B12?

What does vitamin B12 interact with?

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

What biochemical reactions are dependent on vitamin B12?

It is a cofactor in DNA synthesis, and in both fatty acid and amino acid metabolism. It is particularly important in the normal functioning of the nervous system via its role in the synthesis of myelin, and in the maturation of developing red blood cells in the bone marrow.

Can vitamin B12 cause allergic reaction?

Vitamin B-12 can cause very rare but serious allergic reactions (anaphylaxis). This includes swelling of the face, tongue, and throat, and difficulty swallowing and breathing. If this occurs after you take vitamin B-12, call 911 or your local emergency services immediately.

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How does vitamin B12 affect the nervous system?

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.

How long does it take for B12 supplements to work?

A response usually is seen within 48 to 72 hours, with brisk production of new red blood cells. Once B12 reserves reach normal levels, injections of vitamin B12 will be needed every one to three months to prevent symptoms from returning.

Which tablet is best for vitamin B12?

Drugs used to treat Vitamin B12 Deficiency

Drug name Rating Rx/OTC
View information about Vitamin B12 Vitamin B12 6.7 Rx/OTC
Generic name: cyanocobalamin systemic Drug class: vitamins For consumers: dosage, interactions, side effects
View information about cyanocobalamin cyanocobalamin 6.8 Rx/OTC

How can I increase my B12 naturally?

To increase the amount of vitamin B12 in your diet, eat more of foods that contain it, such as:

  1. Beef, liver, and chicken.
  2. Fish and shellfish such as trout, salmon, tuna fish, and clams.
  3. Fortified breakfast cereal.
  4. Low-fat milk, yogurt, and cheese.
  5. Eggs.

Where does vitamin B12 come from naturally?

Vitamin B12 is naturally found in animal products, including fish, meat, poultry, eggs, milk, and milk products. Vitamin B12 is generally not present in plant foods, but fortified breakfast cereals are a readily available source of vitamin B12 with high bioavailability for vegetarians [5,13-15].

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What causes vitamin B12 deficiency?

However, the most common cause of vitamin B-12 deficiency anemia is a lack of a substance called intrinsic factor, which can be caused when your immune system mistakenly attacks the stomach cells that produce this substance. This type of anemia is called pernicious anemia.

Can Vitamin B12 make you itch?

Common side effects of taking vitamin B12 include headaches, itching, swelling, nervousness or involuntary movements. These symptoms should lessen and subside over time. However, should any become persistent or more severe, it’s recommended that you check in with your primary care physician.

Does B12 increase histamine?

Folic acid (with vitamin B12) can help to raise the histamine level.

Can vitamin B12 cause skin problems?

Skin lesions associated with vitamin B12 deficiency are skin hyperpigmentation, vitiligo, angular stomatitis, and hair changes. Cutaneous lesions that do not respond to conventional therapy can be an indication of vitamin B12 deficiency. Malabsorption is the most common cause of vitamin B12 deficiency.

What is the best vitamin for nerves?

B vitamins are vital for nerve health. Vitamin B12 is particularly important for nerve health. A deficiency in vitamin B12 can lead to neuropathy, where you experience numbness in your fingers and toes.

What is the best vitamin for nerve damage?

B vitamins for neuropathy. B vitamins are useful in treating neuropathy since they support healthy nervous system function. Peripheral neuropathy is sometimes caused by a vitamin B deficiency. Supplementation should include vitamin B-1 (thiamine and benfotiamine), B-6, and B-12.

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

Neurologic improvement begins within the first week also and is typically complete in 6 weeks to 3 months.

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