Childhood trauma and food addiction: The role of emotion regulation difficulties and gender differences

Childhood trauma has been associated with substance use disorders (SUDs), but less research has investigated its association with food addiction (i.e., compulsive intake of highly processed foods containing refined carbohydrates and/or added fat). Existing research on childhood trauma and food addiction has focused primarily on women from restricted samples. Further, emotion dysregulation difficulties are implicated in both childhood trauma and food addiction, but research has not explored whether it may play a mediating role. The current study utilizes a sample of 310 participants recruited from Amazon Mechanical Turk (mean age = 41.3 years old, 47.4% men, 78.7% white) to investigate the mediating role of emotion dysregulation in the association between childhood trauma and food addiction. We also conducted exploratory analyses to investigate for gender differences in these associations. Gender-stratified correlational matrixes were conducted to investigate associations between childhood trauma, food addiction, and emotional dysregulation. Moderated mediation models and multilevel regressions were also conducted to identify the role of gender in the association between childhood trauma, food addiction, and emotion dysregulation. Emotion dysregulation was found to partially mediate the associations between food addiction and childhood trauma and gender was found to moderate associations between childhood trauma and emotion dysregulation, as well as childhood trauma and food addiction. Both moderating pathways were significantly stronger for men compared to women. Results suggests that emotion dysregulation may be one important mediator in the association between childhood trauma and food addiction, particularly for men. The identification of other potential mechanisms contributing to the association between childhood trauma and food addiction and the use of longitudinal measurement strategies will be important in future research.