Vitamin B12, or cyanocobalamin, is essential for many reactions in the body. For example, this vitamin has roles in heart health, energy production in the body, and the formation of healthy red blood cells, among others. Many people are low in vitamin B12, though, and the Vitamin B12 Energy Plus Patch by PatchAid is a convenient choice for a supplement if your healthcare provider recommends it. Here are 10 health benefits of getting enough vitamin B12.*