B12 deficiency can produce

A. Insomnia
B. Microcytic anemia
C. Pernicious anemia
D. None of these

Check Answer

The correct answer is C) Pernicious anemia.

Vitamin B12 is an essential nutrient that is required for the production of red blood cells, the proper functioning of the nervous system, and the metabolism of certain amino acids and fatty acids. A deficiency in vitamin B12 can lead to a variety of symptoms, including fatigue, weakness, shortness of breath, and neurological problems such as numbness and tingling in the hands and feet. In severe cases, B12 deficiency can lead to pernicious anemia, which is a type of anemia caused by a lack of intrinsic factor, a protein that is required for the absorption of vitamin B12 in the small intestine. Symptoms of pernicious anemia include fatigue, weakness, pale skin, and shortness of breath. Treatment typically involves vitamin B12 supplementation, either through injections or oral supplements.
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