Which of the following is the most common cause of B12 deficiency?
Please select the single best answer.
A. Excess zinc intake
B. Loss of intrinsic factor
C. Cobalt deficiency
D. Lead poisoning
Answer (2)
The most common cause of vitamin B12 deficiency is the loss of intrinsic factor, which is necessary for B12 absorption in the intestines. Other options provided do not directly lead to B12 deficiency. Understanding this concept is important for recognizing the implications of vitamin B12 deficiency. ;
The most common cause of vitamin B12 deficiency is the loss of intrinsic factor, which impedes the absorption of B12 in the intestines. Conditions such as pernicious anemia are often responsible for this loss. Other options provided do not directly cause B12 deficiency.
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