Intrinsic factor is necessary for the absorption of vitamin B₁₂.

Name: Intrinsic factor is necessary for the absorption of vitamin B₁₂.
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Intrinsic factor is a glycoprotein that is essential for the absorption of vitamin B₁₂ in the small intestine. It is produced by the parietal cells in the stomach and binds to vitamin B₁₂, allowing it to be absorbed in the ileum of the small intestine. Without intrinsic factor, vitamin B₁₂ cannot be effectively absorbed and can lead to deficiency.

Intrinsic Factor Is Necessary for the Absorption of Vitamin B₁₂