Since 1947 Gluten, Wheat & Dairy Free Halal Suitable for Vegans Non-GMO Kosher Parve Dietary Supplement Vitamin B6 is part of the group of essential nutrients known as the B Complex. B Complex vitamins, including B6, work to support energy metabolism in the body. B6 helps maintain a healthy nervous system. Along with folic acid and B12, B6 promotes heart health by supporting healthy levels of homocysteine already in a normal range. It also plays an integral role in the production of red blood cells.