B12 injections (typically cyanocobalamin or hydroxocobalamin shots ) bypass the GI tract entirely and are the gold standard for correcting B12 deficiency
10.1016/S0899-9007(97)00206-2
One proposed mechanism is that lactate enhances hippocampal neuronal firing, potentially contributing to panic symptoms ( Holdemanella has been associated with reduced right amygdala and hippocampal volumes (Wanapaisan et al., 2022) brain regions consistently reduced in PTSD individuals ( Additional population studies have expanded these findings
Indeed, if there is a methionine deficit, homocysteine can be re-methylated to form methionine, and if there is an adequate amount of methionine, homocysteine is used to produce cysteine (161)
[DOI] [PubMed] [Google Scholar] 58.Yuste J
Biochemical Interaction Studies: Supports experiments examining peptide-protein binding interactions and enzymatic response mechanisms