The complex includes B1 (thiamine), B2 (riboflavin), niacin (nicotinic acid), B6 (a group of related pyridines),B12 (cyanocobalamin), folic acid and pantothenic acid. Since all the B vitamins (except B12) are water soluble and cannot be stored by our bodies, a regular daily intake is required. Vitamin B1 helps the body convert carbohydrates into energy and helps in the metabolism of proteins and fats. Vitamin B2 is required to complete several reactions in the energy cycle. Niacin, helps the metabolism of carbohydrates. Vitamin B12, is a complex crystalline compound that functions in all cells, but especially in those of the gastrointestinal tract, the nervous system, and the bone marrow. It is known to aid in the development of red blood cells. Pantothenic acid promotes a large number of metabolic reactions essential for growth and well-being. Biotin plays a role in numeous metabolic processes.