Weight-centric health practices are based on the principle that excess weight predicts chronic disease, informing a growing sociopolitical movement to address an "obesity epidemic." This hyper-focus on preventing obesity may contribute to weight stigma (i.e., the devaluation and discrimination of individuals based on body size) and other iatrogenic outcomes for youth, including the development and maintenance of eating disorders (EDs). Current evidence-based treatments for EDs include language and practices that may reinforce fears of fatness, body shame, and unhealthy dietary restriction without guidance on addressing weight stigma. Here, we present case examples from three adolescent patients across ED presentations and body sizes to (1) elucidate the role of weight stigma in ED development, (2) highlight the ubiquity and harms of weight stigma within ED treatments, and (3) outline thoughtful protocol adaptations to avoid further harm and facilitate recovery. We conclude with a call for immediate action to advance research characterizing the harms of weight-centric approaches in existing ED interventions to reduce the risk of iatrogenic effects on youth with EDs and advance weight-inclusive approaches to ED treatment.