Pernicious anemia is due to a lack of intrinsic factor leading to inadequate absorption of vitamin B₁₂.

Name: Pernicious anemia is due to a lack of intrinsic factor leading to inadequate absorption of vitamin B 12 .
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Pernicious anemia is a type of anemia characterized by a lack of intrinsic factor, which is a protein made by the stomach that helps the body absorb vitamin B12. Without intrinsic factor, the body cannot absorb enough vitamin B12 from the diet, leading to anemia.

Pernicious Anemia Is Due to a Lack of Intrinsic Factor