This study investigated attitudes about body weight and appearance in a group of young adults. Undergraduate psychology students at the Flinders University of South Australia and at the University of Vermont were asked about their weight and dieting, consciousness about their body, the degree to which their weight had interfered with social activities, their perceptions about the causes of obseity, and their stereotypes about fat and thin men and women. Although 20% of the sample was overweight, 50% of subjects perceived themselves to be overweight to some degree. As expected, weight was a much greater issue for women, who felt more overweight, dieted more, expressed more body consciousness, and reported that weight had interfered more with social activities than did men. Also as expected, Vermont students reported greater frequency of dieting, more concern about weight, and more body consciousness than did students in Australia. Finally, men and women in both cultures stereotyped obese targets significantly more negatively than they did nonobese targets. The results indicate excessive and maladaptive concerns with weight in general, and among women and U.S. students in particular.