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Description
doi: 10.1096/fba.2021-00022

Vitamin B12 is important for producing RBCs and supporting the nervous system

FDA-registered manufacturers (Hospira, Fresenius Kabi) operate under cGMP with FDA inspection authority

Various problems with the stomach and small intestine can therefore contribute to the gradual depletion of B12 levels in the body
Noticeable improvements typically by month 2-3

Originally Posted: April 25, 2024 Last Updated: October 16, 2025 What is an ICD-10 Code
