https://doi.org/10.1177/1359105319887796 Journal of Health Psychology 1–10 © The Author(s) 2019 Article reuse guidelines: sagepub.com/journals-permissions DOI: 10.1177/1359105319887796 journals.sagepub.com/home/hpq Introduction A high prevalence of body image dissatisfaction has been observed in adolescents of both gen- ders and from different countries, such as Brazil (Claumann et al., 2019), Portugal (Coelho et al., 2016), Thailand (Chongwatpol and Gate, 2016) and Iran (Garrusi and Baneshi, 2017). In gen- eral, there are several factors that may contribute to body image dissatisfaction in individuals of different age groups, such as biological, psycho- logical and sociocultural factors (Cash and Smolak, 2011). Particularly in adolescence, there is a major contribution of sociocultural factors to body image dissatisfaction, which include social influences and interpersonal interactions. Among these, the characteristics of events between groups of friends and colleagues, such as appear- ance-related teasing and perceived pressures from friends to attain a thin body (Webb and Zimmer-Gembeck, 2014) with low body fat or to attain a muscular body, in conjunction with the internalization of these appearance ideals, are Body image dissatisfaction in adolescents: Comparison with physical activity, teasing and social support Isadora Gonzaga 1 , Gaia Salvador Claumann 1 , Karoline Sousa Scarabelot 1 , Diego Augusto Santos Silva 2 and Andreia Pelegrini 1 Abstract This study aimed to compare the adolescents’ body dissatisfaction with physical activity, teasing during physical activity and social support. Participants were 938 Brazilian adolescents aged 15–19 years. Study variables were investigated through questionnaires. There was no difference in body dissatisfaction among adolescents who practiced and did not practice physical activity, but among the former, those who had been teased had greater body dissatisfaction. Also, adolescents who had a relative or friend to talk, in addition to giving and receiving affection, more frequently, presented lower body dissatisfaction. Stratifying the sample by gender, the results were similar in females but were not significant in males. Keywords adolescence, body image, social support, students, teasing 1 Santa Catarina State University, Brazil 2 Federal University of Santa Catarina, Brazil Corresponding author: Gaia Salvador Claumann, Department of Physical Education, Health and Sports Sciences Center, Santa Catarina State University, 88080-350, Florianópolis, Brazil. Email: gaiasclaumann@hotmail.com 887796HPQ 0 0 10.1177/1359105319887796Journal of Health PsychologyGonzaga et al. research-article 2019 Article