The sucrose of the human intestinal tract catalyzes hydrolysis of sucrose into D-glucose and D-fructose, making sucrose one of the three carbohydrates (other than monosaccharides) humans can utilize for energy, the other two being lactose and starch.

• 人体肠部的蔗糖经催化水解转化为D-葡萄糖和D-果糖,使蔗糖成为三种人体可利用产生能量的碳水化合物(除单糖)之一。另两种是乳糖和淀粉。