A prolonged deficiency of which vitamin can lead to a specific type of anemia called pernicious anemia?

Explanation

A prolonged deficiency of vitamin B12 can lead to pernicious anemia, a condition in which the body cannot produce enough healthy red blood cells, often because it cannot properly absorb the vitamin from food. Vitamin B12 is essential for nerve function and DNA synthesis in addition to red blood cell production, so deficiency can also cause fatigue and nerve-related symptoms. Good dietary sources include meat, eggs, and dairy products, which is why strict vegetarians and vegans are sometimes advised to consider supplementation. Explore more Everyday Science MCQs on mcqstutor to keep practicing.