Background: Many researchers have demonstrated that inappropriate drinking has various adverse effects. Japanese national survey have pointed out that people have not been sufficiently educated enough about the dangers of drinking, although the amount of alcohol consumed by Japanese people has been increasing. Objective: Since 2002, we have been asking detailed questions about the amount and the frequency of drinking by healthy people undergoing routine medical checkups and giving them advice based on their responses. We analyzed our findings in order to clarify the drinking status of these subjects and the effects of the intervention.