Vitamin B12 is an essential vitamin, which means the human body cannot make it on its own and must obtain it through food, supplementation, or, in some cases, prescription medication. Known primarily as the “energy vitamin,” this vitally important nutrient plays a role in numerous bodily functions and is a cofactor and catalyst “helper” compound in certain enzymatic processes. Aside from those functions, every cell in your body needs vitamin B12. (more…)