Vitamin B12 Deficiency: Symptoms, Causes & Treatment - Cleveland Clinic

Learn about vitamin B12 deficiency, a condition that happens when your body doesn't get enough or absorb enough vitamin B12 from your diet. Find out the symptoms, causes, diagnosis, treatment and prevention of this nutritional deficiency.

Visit visit

Your search and this result

  • The search term appears in the result: b12 deficiency
  • The website matches one or more of your search terms
  • Other websites that include your search terms link to this result
  • The result is in English (Canada)
Vitamin B12 Deficiency: Causes, Symptoms, and Treatment - WebMD

Vitamin B12 deficiency is associated with cognitive problems (problems with thinking, judgment, and learning) and memory issues. So, it may play a role in conditions such as Alzheimer's disease ...

Visit visit

Your search and this result

  • The search term appears in the result: b12 deficiency
  • The website matches one or more of your search terms
  • Other websites that include your search terms link to this result
  • The result is in English (Canada)
Signs and Symptoms of Vitamin B12 Deficiency - Healthline

Learn about the signs and symptoms of low or deficient B12 levels, such as fatigue, pale skin, headaches, depression, and more. Find out the causes of B12 deficiency, how it's diagnosed, and how it's treated with supplements or injections.

Visit visit

Your search and this result

  • The search term appears in the result: b12 deficiency
  • The website matches one or more of your search terms
  • Other websites that include your search terms link to this result
  • The result is in English (Canada)
B12 Deficiency: Symptoms, Causes, Treatment - Healthline

Learn about the signs and symptoms of vitamin B12 deficiency, such as fatigue, anemia, and neurological problems. Find out the common causes, such as diet, medications, and age, and how to treat and prevent it.

Visit visit

Your search and this result

  • The search term appears in the result: b12 deficiency
  • The website matches one or more of your search terms
  • Other websites that include your search terms link to this result
  • The result is in English (Canada)
Vitamin B12 deficiency - Wikipedia

Learn about the causes, symptoms, diagnosis and treatment of vitamin B12 deficiency, a condition that affects the blood, tissue and nervous system. Find out how to prevent and supplement vitamin B12, and how common it is in different populations.

Visit visit

Your search and this result

  • The search term appears in the result: b12 deficiency
  • The website matches one or more of your search terms
  • Other websites that include your search terms link to this result
  • The result is in English (Canada)
Vitamin B12 Deficiency - StatPearls - NCBI Bookshelf

Vitamin B12 (cobalamin) is a water-soluble vitamin that is derived from animal products such as red meat, dairy, and eggs. Intrinsic factor is a glycoprotein that is produced by parietal cells in the stomach and is necessary for the absorption of B12 in the terminal ileum. Once absorbed, B12 is used as a cofactor for enzymes that are involved in the synthesis of deoxyribonucleic acid (DNA ...

Visit visit

Your search and this result

  • The search term appears in the result: b12 deficiency
  • The website matches one or more of your search terms
  • Other websites that include your search terms link to this result
  • The result is in English (Canada)
Vitamin B12 Deficiency Anemia - Johns Hopkins Medicine

Learn about the causes, symptoms, diagnosis, and treatment of vitamin B12 deficiency anemia, a condition that affects red blood cell production. Find out how to prevent and manage this type of megaloblastic anemia with diet, supplements, and lifestyle changes.

Visit visit

Your search and this result

  • The search term appears in the result: b12 deficiency
  • The website matches one or more of your search terms
  • Other websites that include your search terms link to this result
  • The result is in English (Canada)
Vitamin B12 Deficiency: Recognition and Management - AAFP

Learn about the causes, symptoms, diagnosis, and treatment of vitamin B12 deficiency, a common cause of megaloblastic anemia and neurologic problems. Find out who should be screened, how to interpret laboratory tests, and what supplements to recommend for different groups of patients.

Visit visit

Your search and this result

  • The search term appears in the result: b12 deficiency
  • The website matches one or more of your search terms
  • Other websites that include your search terms link to this result
  • The result is in English (Canada)
Vitamin B12: The Ultimate Guide on Benefits, Risks of Deficiency ... - MSN

You might have to take a vitamin B12 supplement to avoid a B12 deficiency if you're a vegan or vegetarian. Cyanocobalamin is the synthetic form of vitamin B12, broken down into methylcobalamin and ...

Visit visit

Your search and this result

  • The search term appears in the result: b12 deficiency
  • The website matches one or more of your search terms
  • Other websites that include your search terms link to this result
  • The result is in English (Canada)
9 Signs And Symptoms of Vitamin B12 Deficiency Women Should Know

The biggest risk factor for vitamin B12 deficiency is following a vegetarian or vegan diet. Though plant-based diets are generally chockfull of vitamins and nutrients, B12 only occurs naturally in ...

Visit visit

Your search and this result

  • The search term appears in the result: b12 deficiency
  • The website matches one or more of your search terms
  • Other websites that include your search terms link to this result
  • The result is in English (Canada)
Vitamin B12 deficiency

Learn about the causes, symptoms, diagnosis and treatment of vitamin B12 deficiency, a condition that affects the blood, tissue and nervous system. Find out how to prevent and supplement vitamin B12, and how common it is in different populations.

Wikipedia

Fact sheet

Beta
Vitamin B 12 deficiency

Other names

Hypocobalaminemia, cobalamin deficiency

Image of the cervical spinal cord in vitamin B 12 deficiency showing subacute combined degeneration. (A) The midsagittal T2 weighted image shows linear hyperintensity in the posterior portion of the cervical tract of the spinal cord (black arrows). (B) Axial T2 weighted images reveal the selective involvement of the posterior columns.

Symptoms

Decreased ability to think, feeling tired, depression, irritability, abnormal sensations, changes in reflexes

Complications

Megaloblastic anemia, irreversible damage to the brain and nervous system

Causes

Poor absorption, decreased intake, increased requirements

Diagnostic method

Blood levels below 148–185 pmol/L (200–250 pg/mL) in adults

Prevention

Supplementation in those at high risk

Treatment

Supplementation by mouth or injection

Frequency

6% (< 60 years old), 20% (> 60 years old)