1 CHU Sainte-Justine Research Centre, Montreal, Canada.
2 Department of Psychiatry and Addictology, University of Montreal, Montreal, Canada.
3 Research Centre of the Montreal Mental Health University Institute, Montreal, Canada.
4 Department of Psychology, Concordia University, Montreal, Canada.
5 Department of Psychiatry, McGill University, Montreal, Canada.

Introduction: Eating disorders (EDs) have long been considered conditions exclusively affecting women, and studies in the ED field regularly exclude men. Research efforts are needed to better understand the role of gender and sex in EDs. This review describes the role of gender and sex in the development of EDs from a biopsychosocial perspective.

Methods: The primary hypothesis of this narrative review is that gender and sex interact to influence ED risk. The literature review was conducted using the PubMed database.

Results: This review first presents the general characteristics and prevalence of EDs according to gender and sex. Next, neurodevelopmental processes, neurobiology, gender roles, body image, and the minority stress model are addressed. Lastly, research perspectives to better include gender and sex in the field of EDs are discussed (e.g., representation of gender and sex diversities, development of appropriate assessment tools, and increasing awareness).

Conclusion: Although substantial knowledge gaps remain, there is a growing recognition of the importance of integrating gender and sex in ED research that holds promise for further development in the field.