Immune support through antibody synthesis
Rely on Diet First : Include B12-rich foods like lean meats, salmon, eggs, and fortified cereals in your meals
Additionally for people who are dealing with an acute B12 deficiency, oral supplements may not be the best course of action given that there is no way to determine how much is actually absorbed
The bottom line Giving yourself a shot can be a scary thought
Safety and Precautions Aseptic Technique: Always use sterile gloves and needles when withdrawing from the vial
Injections are favored for severe deficiency, malabsorption (e.g., postGI surgery, chronic diarrhea), very low B12 levels with neurologic signs, poor adherence, or when rapid repletion is needed