Aspartame is a kind of artificial sweetener. It has the advantages of low dosage, high sweetness (150~200 times as sweet as sucrose), good taste, can improve the flavor of citrus and other fruits, reduce calories, do not produce caries, and has lower toxicity than saccharin and other artificial sweeteners. It is widely used in beverages, diabetes food and some weight loss and health food. The formula of cola we drink in our daily life used to contain this product.