Vitamin B12 Deficiency

Vitamin B12 Deficiency: Introduction

Vitamin B12 Deficiency: A deficiency of Vitamin B12 primarily causes anemias the body is unable to make sufficient quantities of normal red blood cells. Severe cases can lead to permanent nervous system problems. The vitamin B12 deficiency can result from absorption problems, insufficient dietary intake, certain medications (e.g. metformin), inherited conditions (e.g. transcobalamin deficiency) and certain chronic parasitic intestinal infestations. More detailed information about the symptoms, causes, and treatments of Vitamin B12 Deficiency is available below.

Symptoms of Vitamin B12 Deficiency

• Anemia - see also symptoms of anemia
• Pernicious anemia
• Certain brain disorders
• Certain nerve disorders
• Neurological symptoms
• more symptoms...»

See full list of 51 symptoms of Vitamin B12 Deficiency

Vitamin B12 Deficiency: Complications

Review possible medical complications related to Vitamin B12 Deficiency:

• Permanent neurological damage
• more complications...»

Medical Textbooks Online about Vitamin B12 Deficiency

Book excerpts: Copyright © 2008 Lippincott Williams & Wilkins. All rights reserved.

Wrongly Diagnosed with Vitamin B12 Deficiency?

• Misdiagnosis of Vitamin B12 Deficiency
• Failure to diagnose Vitamin B12 Deficiency
• Hidden causes of Vitamin B12 Deficiency (possibly wrongly diagnosed)
• Undiagnosed: Vitamin B12 Deficiency

Misdiagnosis and Vitamin B12 Deficiency

Vitamin B12 deficiency under-diagnosed: The condition of Vitamin B12 deficiency is a possible misdiagnosis of various conditions, such as multiple sclerosis (see symptoms of multiple sclerosis). See symptoms of Vitamin B12 deficiency or misdiagnosis of multiple sclerosis....read more »

Read more about Misdiagnosis and Vitamin B12 Deficiency

Causes of Vitamin B12 Deficiency

• Vegans
• Pernicious anemia - see also causes of pernicious anemia
• Stomach removal
• Malabsorption
• more causes...»

Read more about causes of Vitamin B12 Deficiency

More information about causes of Vitamin B12 Deficiency:

• Drug interactions causing Vitamin B12 Deficiency (4 listings)
• Underlying causes of Vitamin B12 Deficiency
• Vitamin B12 Deficiency as a symptom

Treatments for Vitamin B12 Deficiency

• Adequate vitamin B12 diet
• Vitamin B12 injections
• Treatment of the underlying cause
• Vitamin B12
• Vitamin B12 injections, increase dietary Vitamin B12 intake
• more treatments...»

Read more about treatments for Vitamin B12 Deficiency

News Archives for Vitamin B12 Deficiency

Medical news articles related to Vitamin B12 Deficiency include:

• B12 Deficit May Boost Risk of Birth Defects
• Vitamin B12 Key to Aging Brain
• more health news...»

Source: HealthDay News

Evidence Based Medicine Research for Vitamin B12 Deficiency

Medical research articles related to Vitamin B12 Deficiency include:

• Is intrinsic factor antibodies and antiparietal cells antibodies testing necessary to diagnose pernicious anaemia?
• How frequently should you give vitamin B12 injections in multiple sclerosis and is B12 addictive or harmful in long term use?
• Does any evidence exist to show b12 injections may need to be given more often than 12- weekly in pernicious anaemia, and how frequently can they be safely given if patients ask for this?
• Is there an association between vagotomy and pyloroplasty and development of vitamin b12 deficiency?
• What is the evidence for giving oral B12 when a patient has B12 deficiency but is gastric parietal cell antibody and intrinsic factor negative?
• more research...»

Click here to find more evidence-based articles on the TRIP Database

Videos for Vitamin B12 Deficiency

Patient Surveys for Vitamin B12 Deficiency

• Patient Profile Survey
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• Survey about the symptoms of your Vitamin B12 Deficiency
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Prognosis for Vitamin B12 Deficiency

Prognosis for Vitamin B12 Deficiency: Once the condition is identified it is easily treated with the administration of Vitamin B12 and dietary changes to prevent reoccurrence. Prompt treatment can prevent neurological complications.

More about prognosis of Vitamin B12 Deficiency

Reseach about Vitamin B12 Deficiency

Visit our research pages for current research about Vitamin B12 Deficiency treatments.

Clinical Trials for Vitamin B12 Deficiency

The US based website ClinicalTrials.gov lists information on both federally and privately supported clinical trials using human volunteers.

Some of the clinical trials listed on ClinicalTrials.gov for Vitamin B12 Deficiency include:

• Can Recombinant Human Intrinsic Factor Be Used for Evaluation of the Vitamin B12 Absorption? - This study has been completed (Current: 23 Nov 2006) - Recombinant human intrinsic factor
• How Many Patients Are in Need of Vitamin B12 Injections? - This study is currently recruiting patients (Current: 23 Nov 2006) - vitamin B 12
• The Role of Methycobalamin in Early Dementia Patients With Vitamin B12 Deficiency and Hyperhomocysteinaemia. - This study has been completed (Current: 23 Nov 2006) - Mecobalamin
• more trials...»

Read more about Clinical Trials for Vitamin B12 Deficiency

Prevention of Vitamin B12 Deficiency

Prevention information for Vitamin B12 Deficiency has been compiled from various data sources and may be inaccurate or incomplete. None of these methods guarantee prevention of Vitamin B12 Deficiency.

• Vitamin B12
• more preventions...»

Read more about prevention of Vitamin B12 Deficiency

Statistics for Vitamin B12 Deficiency

• Medical statistics for Vitamin B12 Deficiency
• Prevalence and incidence statistics for Vitamin B12 Deficiency
• Death and Mortality statistics for Vitamin B12 Deficiency
• Society statistics for Vitamin B12 Deficiency

Vitamin B12 Deficiency: Broader Related Topics

• Vitamin deficiency
• Vitamin B deficiency
• more types...»

Types of Vitamin B12 Deficiency

Stories from Users Related to Vitamin B12 Deficiency

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Definitions of Vitamin B12 Deficiency:

Condition due to a deficiency of vitamin B12. - (Source - Diseases Database)

Vitamin B12 Deficiency is listed as a "rare disease" by the Office of Rare Diseases (ORD) of the National Institutes of Health (NIH). This means that Vitamin B12 Deficiency, or a subtype of Vitamin B12 Deficiency, affects less than 200,000 people in the US population.
Source - National Institutes of Health (NIH)