If the B12 ingested was part of a multivitamin, then the list of potential sources for a reaction becomes quite formidable
Description Vitamin B12 plays a critical role in energy production, metabolism, and nervous system health
Obesity Pharmacotherapy: Current Perspectives and Future Directions, Misra M., Journal (Current Cardiology Reviews, Volume 9, Issue 1, February 2013, Pages 3354)
Stainless steel needles are commonly preferred for B12 injections
However, there are no clinical studies examining this combination
The Role of Vitamin B12 Vitamin B12 plays a crucial role in energy production, red blood cell formation, and maintaining a healthy nervous system