Well look at the common and rare side effects and what precautions to take
A B12 injection may be worth discussing if: You have absorption problems: Conditions like Crohn's disease, celiac disease, or atrophic gastritis can reduce how well your body absorbs B12 from food, and past gastric surgery can have a similar effect
The products are not medicines or drugs and they have not been approved by the FDA to prevent, treat, diagnose, mitigate, or cure any disease, ailment or medical condition
The leading cause of death was identified based on the International Classification of Diseases, 10th Revision (ICD-10), including death due to cardiovascular disease (heart disease: I00-I09, I11, I13, I20-I51, and cerebrovascular disease: I60-I69), malignant neoplasms (C00-C97)