Which type of sugar is fructose?

Fructose is a simple sugar or monosaccharide. Sugar or table sugar is sucrose, which is a disaccharide that is 50% fructose and 50% glucose joined by a chemical bond. High fructose corn syrup is a type of sugar made from corn. It is compositionally similar to sugar as well as nutritionally similar to sugar. All three are caloric sweeteners with 4 calories per gram.