Stevia (Steviol Glycosides, E960) is a sweetener and sugar substitute made from the leaves of the plant species Stevia rebaudiana. Stevia is an intensive sweetener, with a relative sweetness of about 300 times of that of table sugar, and it is the only intensive sweetener from natural origin currently commercially available. Because stevia has a negligible effect on blood glucose it is very attractive to people on low-sugar or carbohydrate-controlled diets.