how long after vitamin b12 injections take to work Does It Work? B12 Shots & B12 Injections:

Some breakfast cereals reinforced with B12 make it readily available for absorption into your body

Rarely, there can be systemic side effects

Consider intramuscular vitamin B 12 injections instead of oral replacement for suspected or confirmed vitamin B 12 deficiency caused by diet if: The person has another condition that may deteriorate rapidly and have a major effect on their quality of life (for example, a neurological or hematological condition such as ataxia or anemia)

For those who have undergone certain surgeries or have conditions affecting B12 absorption, more frequent injections may be necessary initially, followed by a tailored maintenance plan

Im particularly grateful to Dr Josh for his clear, candid explanations and honesty throughout, which made the whole experience very reassuring