The current cross-sectional descriptive study was performed to determine the effect of young adults' attitudes regarding social gender roles on perceived social support level in health behaviors. Participants comprised 209 young adults aged 18 to 21 years. Data collection tools included a sociodemographic characteristics form, the Gender Roles Attitude Scale, and Child and Adolescent Social Support Scale for Healthy Behaviors (CASSS-HB). Data were analyzed using percentile, correlation, and regression analysis. A significant positive correlation was found between total CASSS-HB score and the egalitarian gender role subdimension of the Gender Roles Attitude Scale. It was determined that participants with an egalitarian perspective toward gender roles had increased levels of social support in health behaviors. [Journal of Psychosocial Nursing and Mental Health Services, 62(4), 17-23.].