Studies found that common college adjustment factors like missing home friends and worrying about grades related to the development of female students’ disordered eating and body dissatisfaction as they make the move to a college. The purpose of this research was to investigate the contribution of eating behaviour and body dissatisfaction to stress among undergraduate students in Malaysia. A total of 120 undergraduate students in Malaysia, aged between 20 and 40 years old, were recruited through purposive sampling for this study. The instruments used included the Eating Attitudes Test, the Body Shape Questionnaire, and the Perceived Stress Scale. Descriptive statistics were conducted to measure the prevalence of vulnerability to eating disorders, the level of body dissatisfaction, and the level of stress. In addition, multiple regression analysis was performed to analyze the contribution of eating behaviour and body dissatisfaction to stress. The findings indicated that undergraduate students demonstrated a relatively high tendency towards having eating disorders (M = 111.19, SD = 14.74), had a high level of concern regarding their body shape and appearance (M = 48.21, SD = 20.00), and exhibited moderate levels of stress in their daily lives (M = 22.48, SD = 4.16). Moreover, the study revealed that body dissatisfaction (t = 2.63, p = .010) significantly contributed to stress among undergraduate students, while eating behaviour (t = 1.137, p = .258) did not. In conclusion, these findings underscore the importance of addressing body dissatisfaction as a potential factor influencing stress among undergraduate students in Malaysia.