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Although a considerable amount of research has revealed connections between weight stigma and mental and physical health outcomes, no studies to date have experimentally manipulated the experience of obesity to understand how weight stigma causally affects eating behavior, physiology, and psychological well‐being. Research has also not yet identified effective strategies for reducing weight stigma.

In this research, the effect of weight stigma on psychological outcomes, unhealthy eating behavior, and the stress hormone cortisol was examined by randomly assigning participants to appear obese by wearing a fat suit or not. It was hypothesized that the physical alteration of participants' apparent body size would lead to similar consequences as those associated with the experience of weight stigma and reduce antifat attitudes.

Supporting these hypotheses, experimentally …