Novel utilization of sucralose which is a high intense sweetener. Compositions containing sucralose including: sweetening compositions having excellent sweetness qualities based on the characteristics of sucralose foods with a masked unpleasant smell and unpleasant taste performance food compositions (viscous food compositions, gel food compositions, emulsified food compositions) foods with improved flavors preservatives and foods with improved quality of taste and flavor compositions with improved flavors. Novel utilization of sucralose as a sweetener improver, a masking agent for unpleasant smell/unpleasant taste, a flavor improver, a function improver (viscosity, gelling properties, emulsification properties), a taste characteristic improver, and a flavor improver/enhancer.