b12 injections or pills vs Oral Supplements: Which are more effective? Vitamin B12 Injections: Good or
Description
Heres what you can expect: Quick and Easy : Injections are administered in a matter of minutes
The clearest way to know is through diagnostic tests
doi: 10.1021/acs.jmedchem.9b01255

Amitai G

However, the efficacy was insufficient for drug registration
