Provided is an easy-to-drink beverage that has the characteristic flavor of flavorful acidic citrus fruits but in which the acidity unique to the fruit juice of flavorful acidic citrus fruits has been appropriately suppressed. In this beverage containing the fruit juice of a flavorful acidic citrus fruit in a fruit juice ratio of 1% to 30%, the ratio of the amount of narirutin to the total amount of naringin, hesperidin, eriocitrin, narirutin, neohesperidin, and rutin is 0.06-0.14.