Fast Five Quiz: Vitamin B12 Deficiency

Romesh Khardori, MD, PhD


December 22, 2020

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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