does vitamin b12 injections have side effects Common & Rare of vitamin b12 injection side effects

Warnings Patients who have early Leber's disease (LHON) a hereditary disease that causes optic nerve atrophy have been found to suffer severe and swift optic atrophy when treated with vitamin B12

This method bypasses your digestive system entirely, which is crucial for people who can't properly absorb B12 through food or oral supplements

B12 also supports energy production and mood regulation by helping enzymes involved in metabolic and nervous system functions

Nutrient IM injections are physician-supervised treatments

How B12 Injections Work Healthcare professionals administer B12 injections intramuscularly, typically in the arm or buttock