can i take vitamin b12 injection Methylcobalamin (Vitamin B12) How Can Vitamin B12 Shots

The methyl group is what gives b12 it's medicinal quality

doi:10.3390/nano11030743

Some common symptoms include: Fatigue and weakness Brain fog or memory issues Mood swings and irritability Tingling in hands and feet How B12 Injections Improve Health B12 injections can lead to rapid improvements in: Energy levels Mental clarity Mood and sleep Metabolism and weight management These benefits are especially helpful for people with dietary restrictions, absorption disorders, or demanding lifestyles

The body can do this but many times the reason the deficiency exists is because there is some venerability with formation of methyldonors (like methylcobalmin)