If you are currently suffering with any infections, are taking antibiotics or have current cold and flu symptoms, then having the Vitamin B12 shot at that time is contraindicated
It is elective and intended for general wellness support
Not because they are a trend, but because when used appropriately and under clinical guidance, they can serve as a meaningful complement to a broader wellness or weight management plan
That clinical layer, evaluation, prescription, monitoring, and adjustment, is the entire difference between a supervised protocol and an unsupervised gamble
Giving them more frequently than the established schedule is a form of over-treatment that is not supported by evidence and can strain healthcare resources (nurses time, clinic space, and medication supplies)