Vitamin b12 deficiencyE53.9

Author:Prof. Dr. med. Peter Altmeyer

Co-Autor:Dr. med. Conrad Hempel

All authors of this article

Last updated on: 17.09.2022

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Synonym(s)

Perniciosa; Pernicious anemia; Perniziosa

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DefinitionThis section has been translated automatically.

Deficiency of vitamin B12 as a result of a reduced or absent supply, also in the case of disturbed utilization (lack of intrinsic factor) or iatrogenic use of antagonists. A disease that occurs frequently in combination with folic acid deficiency.

Occurrence/EpidemiologyThis section has been translated automatically.

Vitamin B12 deficiency is widespread. It is estimated that about 5-7% of all young adults and 10-30% of all older adults have vitamin B12 deficiency. More common in vegans or vegetarians.

Prevalence in developing countries is significantly more common.

Authors

Last updated on: 17.09.2022

Author: Prof. Dr. med. Peter Altmeyer

Co-Autor: Dr. med. Conrad Hempel