Final answer:
The disorder related to the absorption of vitamin B12 is pernicious anemia. It is caused by poor absorption of vitamin B12 and is seen in patients with conditions such as Crohn's disease and surgical removal of the intestines or stomach. It can also occur in individuals with a deficiency of vitamin B12 in their diets.
Step-by-step explanation:
The disorder related to the absorption of vitamin B12 is pernicious anemia. Pernicious anemia is caused by poor absorption of vitamin B12 and is often seen in patients with conditions such as Crohn's disease, surgical removal of the intestines or stomach, intestinal parasites, and AIDS. It can also occur in individuals who have a deficiency of vitamin B12 in their diets, such as vegans and vegetarians.
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