According to the Mayo Clinic, one of the most common medical uses of B-12 shots is for pernicious anemia
This piece is about which one is, and why the answer matters beyond a single peptide
4.12 Proteomics and phosphoproteomics data analysis using Perseus Analysis for treatment versus untreated control of peptides and phosphopeptides was performed using Perseus v2.0.9.0
0.1 N HCl) or compatible solvent (e.g
however, no maternal or fetal complications have been associated with doses that are recommended during pregnancy, and appropriate treatment should not be withheld from pregnant women with vitamin B12 responsive anemias
Biochemically it serves two enzymes: methionine synthase, which remethylates homocysteine to methionine and regenerates the cells methyl-donor pool, and methylmalonyl-CoA mutase in mitochondrial energy metabolism[1][2]