what happens if you don't get your b12 injection Inject Wrong? · PA Relief B12 Injections for Weight Loss

A new combination uses 5-Amino-1MQ to slow down nicotinamide N-methyltransferase (NNMT), an enzyme that controls how fast the body uses up NAD+

B12 deficiency can increase the risk of birth defects and may contribute to premature birth or miscarriage

Immunology 153 , 179189 (2018)

Too much may have adverse health consequences

You can read the abstract of this article at Serotonin plays a significant role in the brain, particularly in relation to sleep

Although vitamin B12 is water-soluble and excess amounts are typically excreted in the urine, the body still stores significant quantities (primarily in the liver) with its levels continuously regulated