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What are the benefits of vitamin B12?

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Quick Answer

Vitamin B12 is used to increase energy, boost the immune system, improve concentration and to slow aging, according to WebMD. It is also used to treat Alzheimer's, heart disease, AIDS, diabetes, inflammatory bowel disease, asthma and certain allergies. Vitamin B12 is used to treat depression and other mental health issues.

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Full Answer

Vitamin B12 is used to treat and prevent vitamin B12 deficiency, which is when vitamin B12 levels in the blood are too low. A lack of vitamin B12 can cause pernicious anemia, which occurs most often in the elderly. Vitamin B12 supplements are administered intravenously, by swallowing capsules or by applying a gel inside the nasal passage. Vitamin B12 may also be used to prevent cervical cancer and other types of cancers, as well as certain skin infections, states WebMD.

Some people have a B12 deficiency disease that causes them to absorb vitamin B12 poorly. This is treated by giving the patient B12 shots for 10 days straight, and then giving them one B12 shot per month perpetually. Vitamin B12 may be an effective treatment for cyanide poisoning and for lowering homocysteine blood levels. Taking vitamin B12 in conjunction with other supplements may be an effective way to prevent an eye disease called age-related macular degeneration, notes WebMD.

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