1. :
Ÿ B12 ߱Ǵ ȯԴϴ. ȯ ȯڴ () Ÿ B12 ϴ (intrinsic factor) մϴ. Ÿ B12 ϴµ ʿ DNA , ̰ Ǹ ʰ ˴ϴ.
Ǽ ׳ ŴƱ(ũ ̼ ü) ϴ Ư¡̸, Ǽ ŴƱ (megaloblastic anemia) ̱ մϴ.
Ÿ B12 ν ġ ֽϴ. ̵ ȯڴ () Ÿ B12 ִ Ÿ B12 ؾ մϴ.
2. ð˻ :