vitamin b12 injections intramuscular or subcutaneous injection vs.intramuscular b12 im sq Subcutaneous (SC) and (IM) Injections– B12 Shots vs. IV Infusions:

MTHFR 677CT polymorphism and risk of coronary heart disease: a meta-analysis

It can be treated with vitamin B12 medications

Oral intake of vitamin B12 has a complex absorption mechanism involving "intrinsic factor", and typically only 1% of oral vitamin B12 is absorbed, so it is interesting that the levels used in this study were sufficient to substantially improve methylation, glutathione, and oxidative stress

The hope is that if your body learns to fight the coronavirus when you aren't infected, then later, if you are, it will be able to protect you by fighting off the infection extremely quickly

Store at 4C in a dry, sterile, light-protected environment

Yu, L., Li, Y., Gris, A