Question

The disease pernicious anemia is caused by the deficiency of vitamin:

• A. A
• B. K
• C. B${}_1$
• D. B ${}_{12}$

Answer 1

The correct option is D B ${}_{12}$

The disease pernicious anaemia is caused by the deficiency of vitamin $B_{12}$.

Pernicious anaemia is a condition where vitamin $B_{12}$ cannot be absorbed into your body. This is because they lack intrinsic factor, a protein made in the stomach.

A lack of this protein leads to vitamin $B_{12}$ deficiency. To treat this deficiency, vitamin $B_{12}$ injections are given to the patient.

Option D is correct.