Objective: The present study aimed to investigate the correlation of personality traits (neuroticism and psychoticism) and self-efficacy in weight control with unhealthy eating behaviors and attitudes. Aims: To compare therapeutic effect, toxicity profile and quality of life parameter ‘Dysphagia’ using EORTC OES 18 questionnaire in study population. Methods: In this descriptive-correlational study, 459 undergraduate students, in the 17-26 age range, were selected through the stratified random sampling at Razi University of Kermanshah, Iran, in the academic year 2015-2016. For data collection, the weight efficacy lifestyle questionnaire (WEL), Eysenck personality questionnaire (EPQ), and the eating attitudes test (EAT) were used. Results: The results of the present study revealed that there was a negative correlation coefficient between the unhealthy eating behaviors and each of neuroticism and psychoticism (p<0.001), whereas no significant correlation coefficients were observed between self-efficacy in weight control and unhealthy eating behaviors. Further, the results demonstrated that the predictor variables could predict the unhealthy eating behaviors. Accordingly, neuroticism and psychoticism could predict the unhealthy eating behaviors with the impact factors of -0.58 and -0.28, respectively. Conclusion: Therefore, it was concluded that personality traits played a role in unhealthy eating behaviors and attitudes.