An information output device includes an output unit, a recognition unit and a control unit. The output unit outputs a content. The recognition unit recognizes a user. The control unit (i) determines whether the content currently being output by the output unit is suitable for the recognized user, thereby producing a determination result and (ii) changes, on the basis of the determination result, the current output content to a content having the same substance as the current output content but a different playback time from the current output content.