An information-providing method provides a notification relating to an item owned by a user in accordance with change in condition of the item. The information-providing method is implemented on a computer system that stores therein notifications that are each linked to one of a plurality of levels expressing possible conditions of the item. In the information-providing method, condition information is acquired which indicates change in condition of the item resulting from aging or use. Judgment is performed as to whether a current time is a provision time at which a notification is to be provided to the user. Upon judging affirmatively, a level matching condition of the item at the provision time is selected from among the levels, based on the condition information, and a notification linked to the selected level is determined to be the notification that is provided.