Objective To examine how the components of confirmation (i.e., acceptance and challenge) from mother and father have an indirect effect on college men's body dissatisfaction through self-concept, and if body dissatisfaction, in turn, is related to body change behaviors. Participants: College men (N = 237) aged 18-25 from two large universities completed an online survey. Methods: Structural equation modeling was conducted to test hypothesized mediation model. Results: Maternal acceptance had negative indirect effects on body dissatisfaction through self-concept, and body dissatisfaction, in turn, was positively related to body change behaviors. Mother challenge emerged as a near-significant direct and positive predictor of muscularity enhancement behaviors. None of the paternal variables significantly contributed to the model. Conclusions: Mother acceptance may contribute to sons' positive view of self and their appearance, potentially reducing the likelihood of their engagement in body change behaviors. Intervention can target parent-child communication and enhancement of college men's self-concept.