Fast Five Quiz: Vitamin B₁₂ Deficiency

Known risk factors for the development of vitamin B₁₂ deficiency include the following:

• Crohn's disease

• Ileal resection

• Tapeworm infection

• Atrophic gastritis

• Pernicious anemia

• Postgastrectomy syndrome

• Transcobalamin II deficiency

• Alcohol abuse

• Age > 75 years

• Veganism or strict vegetarianism

Read more about the development of vitamin B₁₂ deficiency.

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Cite this: Romesh Khardori. Fast Five Quiz: Vitamin B12 Deficiency - Medscape - Dec 22, 2020.