A nutritional condition produced by a deficiency of VITAMIN B 12 in the diet, characterized by megaloblastic anemia. Since vitamin B 12 is not present in plants, humans have obtained their supply from animal products, from multivitamin supplements in the form of pills, and as additives to food preparations. A wide variety of neuropsychiatric abnormalities is also seen in vitamin b 12 deficiency and appears to be due to an undefined defect involving myelin synthesis. (From Cecil Textbook of medicine, 19th ed, p848)


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spina bifida <b>b12 deficiency</b>,

spina bifida b12 deficiency,
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FIGURE 2. <b>Vitamin B12</b>

FIGURE 2. Vitamin B12
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<b>Vitamin B12 Deficiency</b>

Vitamin B12 Deficiency
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to <b>Vitamin B12 deficiency</b>

to Vitamin B12 deficiency
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<b>deficient</b> in <b>vitamin B12</b>.

deficient in vitamin B12.
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vegan to be <b>low</b> in <b>B</b>-<b>12</b>

vegan to be low in B-12
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<b>vitamin-b12-deficiency</b>.jpg

vitamin-b12-deficiency.jpg
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Last update: September 2014