Question

which health condition is associated with a deficiency in vitamin b₁₂?
o a. pellagra
o b. pernicious anemia
o c. goiter
o d. night blindness

Explanation:

• Option a: Pellagra is caused by niacin (vitamin B3) deficiency.
• Option b: Pernicious anemia is associated with vitamin B₁₂ deficiency, as B₁₂ is essential for red blood cell production and nerve function, and its deficiency (often due to lack of intrinsic factor for absorption) leads to this anemia.
• Option c: Goiter is caused by iodine deficiency, affecting thyroid hormone production.
• Option d: Night blindness is caused by vitamin A deficiency.

Answer:

b. Pernicious anemia