can b12 injections have side effects Are Shots Safe? Royal Palm Beach Medical Group B12
Description
(2015) "NNMT regulates hepatic nutrient metabolism." Published in Journal of Biological Chemistry
Side Effects As with all pharmaceuticals, some unwanted effects can occur from the use of Vitamin B12 Injection

It works by blocking an enzyme called NNMT, which slows down metabolism and fat burn

The clinical presentations vary by age (see Table 1) (101)