Pernicious anemia is a malabsorption of vitamin B₁₂ due to what component deficiency?

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Pernicious anemia is a condition where the body is unable to absorb vitamin B₁₂ properly. This is due to a lack of intrinsic factor, a protein made by cells in the stomach, which is necessary for the absorption of vitamin B₁₂ in the small intestine. Gastric juice, histamine, and folate are not directly involved in the absorption of vitamin B₁₂.

Pernicious Anemia Is a Malabsorption of Vitamin B₁₂ Due to What