PROBLEM TO BE SOLVED: To provide a novel composition effective for suppressing deterioration of attention function and judgment function caused by fatigue. According to the present invention, there is provided a composition for suppressing a decrease in attention function and/or judgment function due to fatigue, which composition comprises a hop oxidation reaction product. The composition of the present invention is preferably a food composition, and can be ingested by a subject who is tired or easily tired. The hop oxidation reaction product is preferably an S-fraction. [Selection diagram] None【課題】疲労に起因する注意機能および判断機能の低下抑制等に有効な新規な組成物の提供。【解決手段】本発明によれば、ホップ酸化反応産物を含んでなる、疲労に起因する注意機能および／または判断機能の低下抑制用組成物が提供される。本発明の組成物は好ましくは食品組成物であり、疲労した対象や疲労しやすい対象に摂取させることができる。前記ホップ酸化反応産物は好ましくはＳ－フラクションである。【選択図】なし
