Regional Disciplinary Medical Board: vitamin B12 cannot be overdosed In 2009, the Regional Disciplinary Medical Board in Eindhoven stated very clearly that an overdose is not possible: There can be no question of an overdose of hydroxocobalamin, as the excess is excreted in urine by the kidneys and therefore cannot accumulate in the body
Sensitivity to the ingredients listed may occur (see WARNINGS)
All products are prepared and packaged to meet laboratory expectations, ensuring consistency, stability, and accurate compound identification
In some rare cases, very high levels of B12 in the blood can be associated with minor side effects like mild acne, dizziness, or a temporary rash
It also participates in the action of serotonin, a neurotransmitter known to control mood and appetite