vitamin b1 b6 b12 injection dosage for Adults: Guidelines Vitamin B Complex: Package Insert
Description
Mice from a different substrain and vendor, but fed similar lean and high-fat diets to this study, showed a predominance of the family Erysipelotrichaceae, of which Ileibacterium is a genus, in their cecal microbiomes 76

For systemic benefit, injection wins

Increase mitochondrial fat oxidation, and appetite signaling escalates to restore energy balance
The application and interpretation of laboratory biomarkers for the evaluation of vitamin B12 status

10.1016/j.tcb.2014.04.002 [DOI] [PMC free article] [PubMed] [Google Scholar] 10.Verdin E
