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Vitamin B 12 deficiency can develop for the following reasons: Absence of intrinsic factor, also called pernicious anemia: Intrinsic factor is a protein secreted by cells of the stomach lining
Content is updated for FY2026 ICD-10-CM (effective October 1, 2025)
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These include vegans and vegetarians, adults over 60, individuals with eating disorders such as anorexia or bulimia, and those taking medications like antacids or diabetes treatments that interfere with B12 absorption
Regular exercise is also beneficial after a B12 shot, as it promotes circulation and enhances the absorption of vitamin B12
NSF-Certified B Supplement Options Choosing supplements that have been certified by a third-party ensures content safety, accuracy, and purity
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