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Cause Of Vitamin B12 Deficiency And Malabsorption
Health Encyclopedia: Vitamin B 12 Level
Normal values are 200-900 pg/ml (picograms per milliliter).
What abnormal results mean
Values of less than 100 pg/ml indicate a significant deficiency of vitamin B-12, with symptoms likely to be present or develop.
Causes of vitamin B-12 deficiency include:
- Inadequate intake (rare except with a strict vegetarian diet)
-
Malabsorption diseases (for example,celiac disease and sprue) - Lack of intrinsic factor
- Hypermetabolic s...
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Health Guide
Pernicious anemia
Pernicious anemia is caused by a lack of intrinsic factor, a substance needed to absorb vitamin B-12 from the gastrointestinal tract. Vitamin B-12 is necessary for the formation of... Read more »Pernicious anemia
Macrocytic achylic anemia; Congenital pernicious anemia; Juvenile pernicious anemia; Vitamin B-12 deficiency (malabsorption) Prevention Pernicious anemia... Read more »Subacute combined degeneration
Subacute combined degeneration of the spinal cord is a disorder caused by vitamin B-12 deficiency and characterized by weakness and abnormal sensations, mental problems, and vision... Read more »Anemia: B12 deficiency
B12 deficiency anemia is a drop in the number of red blood cells due to a lack of vitamin B12. Alternative Names Macrocytic anemia Causes, incidence, and risk... Read more »Pernicious anemia
Macrocytic achylic anemia; Congenital pernicious anemia; Juvenile pernicious anemia; Vitamin B-12 deficiency (malabsorption) Symptoms Many cells in our... Read more »Images
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