subcutaneous vs intramuscular b12 injections Injection Intramuscular B12 Injection Deltoid
Description
It was just like the very first time I had to inject myself, sweating shaking etc
This behavioral change, rather than a direct drug effect, may contribute to inadequate consumption of B12-rich foods such as meat, fish, dairy products, and fortified cereals

Our bodies however are only able to absorb 2g of vitamin B12 per meal, therefore additional supplementation may be beneficial
82 LiuC.LiuL.WangY.ChenX.LiuJ.PengS.et al (2022)