“…Body mass index (BMI) is the weight‐to‐height ratio, where an increased BMI, specific to growth standards of a population, is indicative of overweight and obesity in the population (WHO, 2018). Being obese or overweight among youth are associated with a plethora of adverse physical, psychosocial, and psychological consequences (Li et al, 2020; Sheinbein et al, 2019), one of them being increased risk of being bullied (Van Geel et al, 2014; Waasdorp et al, 2018). However, these results were mostly based on cross‐sectional designs that do not allow for analysis of directionality of relations, and the few longitudinal studies that have examined the direction of links have reported inconsistent results (Adams & Bukowski, 2008; Baldwin et al, 2016; Lee et al, 2018; Lumeng et al, 2010).…”