Vitamin B12 injections are most clinically appropriate in cases of confirmed vitamin B12 deficiency, malabsorption syndromes including pernicious anaemia or post-gastric surgery, significant symptoms where rapid restoration of vitamin B12 levels is required, or failure of oral supplementation due to poor absorption
[DOI] [PMC free article] [PubMed] [Google Scholar] 34.Li D., Yang Y., Li R., Huang L., Wang Z., Deng Q., Dong S
The simple and most accurate answer is: Yes, it absolutely can, but only if your fatigue is caused by a B12 deficiency
They are looking for a physician-guided tool that can support tissue repair, calm inflammation, and improve recovery while they also address the fundamentals
In many cases, you have no reliable way of knowing what is actually in the vial you receive