how much b12 injection dosage Optimal Vitamin and Treating Deficiency B12 Injection Dose: 7 Guidelines
Description
This is essentially done because the body can absorb vitamin B12 through shots without going through the digestive system

Injections bypass the gut and correct deficiency

Weeks 13-16: 10mg (1.0mL or 100 units)

M., Kellokoski, E., Hrkk, S., Kauma, H., Kesniemi, Y
Nature 588 , 174179 (2020)
