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Vitamin B 12 deficiency, also known as cobalamin deficiency, is the medical condition in which the blood and tissue have a lower than normal level of vitamin B 12. [5] Symptoms can vary from none to severe. [1] Mild deficiency may have few or absent symptoms. [1]
Elevated or normal serum vitamin B 12 levels may also be associated with a functional vitamin deficiency. [1] Functional deficiency has been described despite high B 12 concentrations and is due to a failure of cellular uptake, intracellular processing, trafficking, or utilization. [1] However, low vitamin B 12 levels may occur other than the ...
Vitamin B 12 was discovered as a result of pernicious anemia, an autoimmune disorder in which the blood has a lower than normal number of red blood cells, due to a deficiency of vitamin B 12. [ 5 ] [ 16 ] The ability to absorb the vitamin declines with age, especially in people over 60.
A vitamin B12 level of less than 200 pg/mL is considered deficient. Treatment First, have your health care provider run blood tests to see if you truly have a B12 deficiency.
Deficiency isn't common, but can produce some scary side effects when it does happen. Lack of vitamin B12 can cause megaloblastic anemia —a condition characterized by larger than normal red ...
Vitamin B12 deficiency causes symptoms like fatigue, poor memory, a swollen tongue, and canker sores. Skip to main content. 24/7 Help. For premium support please call: 800-290-4726 more ways to ...
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