Vitamin B12 is needed to produce an adequate amount of healthy red blood cells in the bone marrow. Vitamin B12 is available only in animal foods (meat and dairy products) or yeast extracts (such as brewer's yeast). Vitamin B12 deficiency is defined by low levels of stored B12 in the body that can result in anemia, a lower-than-normal number of red blood cells.
Vitamin B12 deficiency can develop for the following reasons:
Absence of intrinsic factor, also called pernicious ...
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Source: ADAM Encyclopedia
Anemia is a condition in which the body does not have enough healthy red blood cells. Red blood cells provide oxygen to body tissues.Vitamin B12... Read more »
Source: ADAM Encyclopedia
The vitamin B12 level is a test to tell how much vitamin B12 is in your blood.How the test is performedBlood is typically drawn from a vein, usually... Read more »
Source: ADAM Encyclopedia
Vitamin B12 is a water-soluble vitamin. Water-soluble vitamins dissolve in water. After the body uses these vitamins, leftover amounts leave the body... Read more »
A small study suggests patients who eat foods rich in vitamin B12 may be protecting themselves from Alzheimer's disease. Researchers found that each... Read more »
Researchers once believed that vitamin B12 and folic acid could be as effective as statins at reducing the risk of heart attack or stroke. But a... Read more »