Aspart is a low-calorie artificial sweetener commonly used in food and beverages. It is about 200 times sweeter than sugar, allowing manufacturers to use smaller amounts to achieve the desired sweetness. Aspart is often found in diet sodas, sugar-free gum, and various low-calorie products. The chemical composition of Aspart includes two amino acids, aspartic acid and phenylalanine, along with a methyl ester. While it is generally recognized as safe by regulatory agencies like the FDA, some individuals with a rare genetic disorder called phenylketonuria (PKU) must avoid it due to their inability to metabolize phenylalanine.