PROBLEM TO BE SOLVED: To provide a flavor improver excellently improving the flavor of food and drink, to provide a method for improving the flavor, and to provide food and drink using the improver.SOLUTION: The flavor improver includes a sugar amino compound complex obtained by heat treating (a) a sugar composition which contains branched oligosaccharide having glucose as the constituent sugar, and at least α1,6 bond, and (b) an amino compound with a molecular weight of <；1,000. The method for improving the flavor of the food and drink includes adding to food and drink, a sugar amino compound complex obtained by heat treating (a) a sugar composition which contains branched oligosaccharide having glucose as the constituent sugar, and at least α1,6 bond, and (b) an amino compound with a molecular weight of <；1,000.【課題】 飲食品の風味を良好に向上すること。【解決手段】 （ａ）グルコースを構成糖とする、少なくともα１，６結合を有する分岐オリゴ糖を含有する糖組成物と（ｂ）分子量１０００未満のアミノ化合物とを加熱処理して得られる糖アミノ化合物複合体を含む風味向上剤；（ａ）グルコースを構成糖とする、少なくともα１，６結合を有する分岐オリゴ糖を含有する糖組成物と、（ｂ）分子量１０００未満のアミノ化合物とを加熱処理して得られる糖アミノ化合物複合体を飲食品に添加する、飲食品の風味向上方法。【選択図】なし
