Vitamin B12 Is Part Of A Group Of Essential Nutrients Known As The B Complex. It Supports Energy Metabolism And Promotes A Healthy Nervous System.* Along With Folic Acid And Vitamin B6, It Supports Heart Health By Promoting Healthy Levels Of Homocysteine Already Within A Normal Range.* B12 Is Required For The Normal Development And Regeneration Of Red Blood Cells, Which Help To Deliver Oxygen Throughout The Body.*