Van der Velde, CarolineCarolineVan der Velde0000-0001-7534-61512024-01-102024-01-102021978-3-86309-853-7https://fis.uni-bamberg.de/handle/uniba/90486The prevalence of unhealthy overweight and obesity among women and men worldwide has tripled in recent decades and continues to rise steadily according to the World Health Organization. Obesity is associated with negative health and with negative psychosocial as well as social consequences. These negative consequences can be reduced by a multidisciplinary treatment approach (nutritional, exercise and behavioral therapy). However, long-term successful weight reduction is a challenge for women and men who have obesity. Previous empirical studies show that there are psychological factors that promote or impede successful weight loss (e.g. self-efficacy, self-control, coping strategies). For many of these psychological factors gender differences have been detected that have so far not been taken into account in the treatment of obesity. In order to do so effectively, digital health services (e.g. health apps) should be used that integrate weight-associated psychological aspects into weight loss and weight maintenance programs. The technical capabilities of digital services allow persons with obesity to adapt treatment individually to their own gender-specific needs. This is a promising approach to improve successful long-term weight loss for both women and men. This article reviews findings on gender-specific differences in psychosocial factors affecting obesity and obesity treatment. Furthermore, it introduces the app-based psychological intervention I-GENDO, which represents an approach combining digitalization and gender aspects in the treatment of obesity. Finally, it argues that the app can increase the effectiveness of conventional weight reduction programs.eng-150conferenceobject