What will happen if a person's B12 levels go very high?
If your B 12 levels are too high then you may be suffering from hematologic disorders like chronic myelogeneous leukemia, promyelocytic leukemia, polycythemia vera. To know the exact cause contact your doctor and do not ignore high levels of B12 as it can be life-threatening.
Cyanocobalaomin, Methylocobalamin, Vit B12