Pernicious anemia is a decrease in red blood cells that occurs when the intestines cannot properly absorb vitamin B12.
Pernicious anemia (PA) is a kind of anemia resulting from a deficiency of cobalamin vitamin B12, which in turn is caused by a lack of intrinsic factor. Intrinsic factor is glycoprotein that binds to cobalamin and helps in absorption of terminal ileum.
Our body needs vitamin B12 to make red blood cells. we obtain this vitamin from eating foods items such as meat, poultry, shellfish, eggs, and dairy products. intrinsic factor (IF), binds vitamin B12 so that it can be absorbed in the intestines.
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