Fecha de publicación: -- Fuente: WIPO "tomato" [Problems] To provide a technology for increasing the amount of allulose in raw materials or fructose-containing foods and drinks.[Solution] The present technology provides an allulose amount increasing agent comprising D-allulose-3-epimerase. The allulose amount increasing agent may further comprise a glucosyltransferase. The present technology also provides a method for producing an allulose-containing food or drink, and a method for increasing the amount of allulose in a raw material or a fructose-containing food or drink, which include a step of treating a raw material or a fructose-containing food or drink with D-allulose-3-epimerase.