Vitamin B12, also known as cobalamin, is a water-soluble vitamin critical to several body functions, such as energy production, nerve function, and red blood cell formation
The concern is not that 5-Amino-1MQ is inherently hazardous, but that understanding of the methylation network is still developing
[1] [2] Blood levels of B12 may rise quickly following injection, though elevated blood levels do not immediately translate to symptom resolution
To Summarize Vitamin B12 injections side effects are incredibly rare, and when reactions occur, they are more likely due to additives rather than the B12 itself
How much vitamin B12 should be taken at different stages of life
Someone at 250 lbs will likely see less effect at 200mcg than someone at 140 lbs seeing the same dose