This phenomenon is well-documented in people who lose weight through any means, whether dietary modification, increased physical activity, bariatric surgery, or pharmacotherapy
The stumbling block has always been that it has to be given IV, in a clinic licensed for administration of intravenous drugs, in order to be effective
Adverse Effect Profile and Safety The most common adverse effects include gastrointestinal intolerance (nausea, vomiting, diarrhea), transient fatigue, and early satiety
[DOI] [PMC free article] [PubMed] [Google Scholar] 446.Yang C, Merlin D
Vitamin B12 attenuates leukocyte inflammatory signature in COVID-19 via methyl-dependent changes in epigenetic markings