Fructo-oligosaccharide (FOS), a complex sugar derived from plants, is widely used in Japan in more than 450 different food products. Unlike the refined sugar, FOS is actually good for you. In fact, it offers so many health benefits that it is now being marketed as a nutritional supplement. Also known as neosugar or inulin, FOS is abundant in Jerusalem artichokes and is found in smaller amounts in many different fruits and vegetables.
Witch's Well 