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A 23-year-old male asked:

can someone please tell me the main symptoms of deficiecy of vitamin b12?

1 doctor answer2 doctors weighed in
Dr. Ahmad M Hadied
Orthopedic Surgery 49 years experience
Anemia: Anemia (megaloblastic anemia).Gastrointestinal symptoms. Neurological symptoms: sensory or motor deficiencies. Dementia. Psychological symptoms and mental disorders. Some times it is the anemia alone but in some cases all of these combined.

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CA
A 37-year-old member asked:

Is it possible to take excessive vitamin b12?

2 doctor answers3 doctors weighed in
Dr. Karen Lawson
Internal Medicine 46 years experience
No: This is a water soluble vitamin and the body will lose excess by urination. However moderation is an important rule of thumb and there is no reason to take more than 1, 000 units a day even in documented deficiency.
A 35-year-old member asked:

What are the benefits of vitamin b12?

2 doctor answers10 doctors weighed in
Dr. Paul Hartlaub
Preventive Medicine 34 years experience
Many: Vitamin B12 is important for many things including nerve function and the making of red blood cells. If you are low on it, therefore, you could have a low blood count or a numb/tingling sensation. Most adults need about 2.4 mcg (micrograms) daily. The main dietary sources are fish/meat, dairy products, and fortified cereals. Link for more info: http://ods.Od.Nih.Gov/factsheets/vitaminb12/.
TX
A 18-year-old member asked:

How and where can I give myself a 2ml shot of vitamin b12?

2 doctor answers3 doctors weighed in
Dr. Danny Proffitt
Family Medicine 43 years experience
Hard to say: Though a vitamin, the injectable form of b-12 usually requires a prescription. Unless one has a significant case of pernicious anemia, some type of bowel problem or bowel surgery and a few other instances, b-12 by injection can be sujpplanted by oral or sublingual b-12. You should know your b-12 level if you are concerned and be careful. You can mask other problems.
CA
A 40-year-old member asked:

Could you tell me what are some conditions that can reduce vitamin B12 absorption and lead to defiency?

2 doctor answers3 doctors weighed in
Dr. Ahsan Bhatti
Gastroenterology 24 years experience
A 28-year-old member asked:

Any relation between diabetic and vitamin b12?

2 doctor answers5 doctors weighed in
Dr. Michio Abe
Internal Medicine 26 years experience
Diabetes & B12: Well, what comes to mind is B12 deficiency that can be caused by metformin, which is a common diabetic medication. Also B12 deficiency can cause peripheral neuropathy similar to diabetic peripheral neuropathy.

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Last updated Aug 13, 2013
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