Vitamin B12 injections and supplements are used to increase energy and improve general health
If the primary benefit is energy improvement that could be achieved with $15/month oral B12 plus a multivitamin, the injection may not be cost-justified
For transparency: this figure does not come from any published human study the actual mouse research used subcutaneous injection at 20 mg/kg three times daily, a very different route, species, and dosing basis than the oral use commonly sold
Does insurance cover the cost of Vitamin B12 injections
If you are pregnant or breastfeeding, you need more
in total, 9 genera (including the unclassified group) and 38 metabolites met these criteria (metabolites published in Sampson et al., 2021 13 )