According to findings from 3 studies (N=482, 349, 481), even moderately overweight people are seen as less competent (though warmer) than moderately thin people. This may be due to the fact that thinness signals self-control whereas heaviness signals emotional expressiveness.
Overweight Adults Should Be Screened for Diabetes at 35, Experts Say
Smartphone use associated with unhealthy eating and overweight in teens