Yacon syrup is made from the yacon tuber, which grows in the highlands of the Andes of Peru. It contains fructooligosaccharides (FOS) which are not fully digested by the body and are treated as soluble fibre. Yacon syrup has a caramel flavour and can be used as a natural sweetener because it carries less calories than sugar (25-30% calories contained in other sugars) and does not cause a spike in blood sugar levels.