Changes in cognitions about the mood; before,during,and after binge eating were investigated. First, a pilot study was conducted with female university students (N=153) and a questionnaire was developed that consisted of items measuring binge eating disorder (BED) tendencies, eating behavior addiction, and changes in cognition about the mood; before,during, and after eating in relation to three factors: depression/fatigue,self-contempt/anxiety, and restlessness. In the main study, female university students(N=205) that were first divided into three groups:control group, pre-BED tendency group, and BED tendency group responded to this questionnaire. Results indicated the following:(1) The pre-BED and BED tendency groups had higher eating addiction scores compared to the control group;(2) The pre-BED and BED tendency groups had higher cognition of mood scores for all factors before, during, and after eating;(3) Depression/fatigue decreased after compared to befor eating in the control and pre-BED tendency groups, whereas this was not the case in the BED tendency group;(4)Self-contempt/anxiety increased after eating in the pre-BED and BED tendency groups