why is pernicious anemia treated with injections of b12 (Rare Cause Vitamin Deficiency) Pernicious Anemia - Diagnosis and

The phospholipids are also dependent on methylation (22 24)

When the stores have been depleted, the final stages of deficiency are often quite rapid, resulting in death in a period of months if left untreated. Oral B12 research Patients during the crisis are now regularly told that they can in fact absorb B12 from cyanocobalamin tablets and yet: A review from Cochrane

An endotoxin-free peptide helps ensure that observed experimental outcomes are attributable to the peptide itself rather than unintended immune or inflammatory responses caused by endotoxin contamination

If you add the same 2ml of bacteriostatic water, you get a concentration of 5mg/ml instead of 2.5mg/ml

The benzyl alcohol acts as a bacteriostatic agent