Vitamin B12 Deficiency Underlying Cause
Pernicious anemia is caused by decreased levels of intrinsic factor, which is an enzyme that helps the body absorb vitamin B-12. The body requires vitamin B-12 in order to make red blood cells: without it, low levels of red blood cells result in anemia.
Causes of low intrinsic factor include:
Continue to Vitamin B12 Deficiency Anatomy
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