Heaven's Gift

Can someone tell me what is the main and secondary functions of vitamin Bs?

Master Bob mentioned that vitamin Bs are essential to build metabolic enzymes that is essential to build the body. The individual vitamin Bs perform different functions. For example, Vitamin B3 is essential to clean arteries, B6 is essential to restore the cardio vascular system and B12 is important to build blood. I heard that the Magnesium and B6 is very good to remove homocystine in the heart area. I am not sure of its efficacy.