how to inject a b12 shot Self-Inject Vitamin at Home B12 Injection Dosage and Frequency:

Inject Air into the Vial : Technique : Insert the needle into the rubber stopper of the vial and inject the air into the vial

Should you inject B12 into fat at home

Conditions like pernicious anaemia (an autoimmune condition affecting a protein called intrinsic factor vital for B12 absorption), stomach issues (such as from reduced stomach acid or certain medications like proton pump inhibitors), intestinal disorders (like Crohns disease or coeliac disease), or even surgical removal of parts of the small intestine (e.g., gastric bypass surgery) can prevent proper absorption

WHY ARE VITAMIN B-12 SHOTS IMPORTANT

In rare cases, these shots can cause adverse side effects, including anaphylaxis

Obesity alters gut microbial ecology (in Eng)