GO B Complex contains a full spectrum of B Vitamins to help support the health of the nervous system, promoting good mood, mental clarity and providing the body with energy. Vitamin B Complex comprises a number of B vitamins that exist as a family. B vitamins are important for the metabolism of carbohydrates, fats, proteins, also they are involved in maintaining the health of the skin, nerves, blood cells, immune system, hormone producing glands and digestive system. People who smoke, drink alcohol, lack energy and exercise, require extra Vitamin B Complex supplementation. Also stress, processed foods, refined sugar, prescription medication and cooking methods may deplete Vitamin B's in the body.