Vitamin B12 plays many essential roles in the body including supporting mental health, eye health, and brain function, just to name a few. This “essential” nutrient helps the body grow healthy red blood cells, nourishes the nervous system and brain, and creates DNA - all of which are necessary for the body to function properly. Visit here https://www.intrigue.health/understanding-the-role-of-vitamin-b12-in-the-body/