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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]
Other symptoms of vitamin B12 deficiency include memory loss, fatigue and weakness, nerve damage causing numbness and tingling in the arms and legs, dementia, depression, and seizures.
B12 is crucial for many important functions, and, with a few exceptions, the only way to get it is through animal-based foods or B12 supplements. “Vitamin B12 is an essential water-soluble ...
How vitamin B12 deficiency is detected. If a doctor suspects a vitamin B12 deficiency, they will usually order blood work to check a patient’s levels, Kaiser says. But having lower vitamin B12 ...
Vitamin B 12 deficiency in pregnant women is strongly associated with an increased risk of spontaneous abortion, congenital malformations such as neural tube defects, and problems with brain development growth in the unborn child. [10] Vitamin B 12 was discovered as a result of pernicious anemia, an autoimmune disorder in which the blood has a ...
The Schilling test distinguished PA from other forms of B 12 deficiency, [50] specifically, from Imerslund–Gräsbeck syndrome, a B 12-deficiency caused by mutations in CUBN that codes for cubilin the cobalamin receptor. [1] Vitamin B12 deficiency is also prevalent in patients having Crohn's disease (CD) so it should be differentiated. [62]
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