Stevia is a new type sweetener extracted from the Stevia Leaves(Herbaceous herb of the Composite family).It features high sweetness and low calorie and its sweetnessis 200-400 times of that of cane sugar,but its carlorie is only1/300 of that of cane sugar.A large number of pharmaceutical tests have proved that stevia has no side effects,carcinogens,and is safe for eating.Constant use can prevent such illness anhypertension,diabetes,obesity,heart disease and carious teeth.