best practice for b12 injections Injection Dosage and Frequency: 7 Guidelines Adults Best Vitamin B12 Injection Sites:
Description
Vitamin B12 injections, when administered by our experienced healthcare professionals, are generally safe and well-tolerated for most of our patients

Therefore a B12 deficiency may lead to decreased serotonin production, which in turn may cause a depressed mood

Consistency matters more than frequency

Cramer, P

Open 6 , 141147 (2017)