how long does vitamin b12 injection stay in your system a Last? How Quickly Does B12 Shot

In addition it has been associated with adverse foetal and neonatal outcomes including neural tube defects (NTDs) [32] [33] [34] The mother's B 12 status can be important in determining the later health of the child, as shown in the Pune maternal Nutrition Study, conducted in India

Intramuscular injections deliver a concentrated dose directly into the blood flow and provide the highest bioavailability of active ingredients and an immediate start of action

I have been self injecting for 2 years, and started injecting my 30 year daughter last year (due to needle phobia and a rubbish GP)

This way, the body gets the B12 it needs without any absorption problems