can you inject b12 into stomach Shots at Home: How, Where & How Often to Yourself B12 Injections at Home -

By selectively inhibiting NNMT activity, researchers study how changes in nicotinamide metabolism influence intracellular NAD availability, methylation balance, mitochondrial efficiency, and lipid metabolism

Use bacteriostatic (not plain sterile) water for a multi-dose vial so the preservative supports the multi-draw window, and reconstitute gently down the vial wall rather than blasting the powder

The lack of Vitamin B12 in the diets of vegetarians has challenged researchers to develop veganic and vitamin-enriched dietary resources and supplements

No significant adverse effects were reported at any dose level tested, including the highest 1mg daily oral dose