The present study aimed to expand weight stigma theoretical models by accounting for central tenets of prominent eating disorder (ED) theories and increasing the generalizability of existing models for individuals across the weight spectrum. College students (Sample 1: N = 1228; Sample 2: N = 1368) completed online surveys assessing stigma and ED symptoms. In each sample, separately, multi-group path analyses tested whether body mass index (BMI) classification (underweight/average weight, overweight, obese) moderated a model wherein weight stigma experiences were sequentially associated with weight bias internalization, body dissatisfaction, and five ED symptoms: binge eating, purging, restricting, excessive exercise, muscle building behaviors. Results supported the assessed model overall and for individuals in each BMI class, separately. Although patterns of associations differed for individuals with different BMIs, these variations were limited. The present findings suggest that the adverse impact of weight stigma on distinct ED symptoms is not limited to individuals with elevated BMIs and that these associations are generally explained by the same mechanisms. Weight stigma interventions that focus on decreasing weight bias internalization and body dissatisfaction are recommended for individuals across the weight spectrum. Further examination of associations between weight stigma and multiple ED symptoms, beyond disinhibited eating, is supported.

本研究旨在通过考虑突出饮食失调 (ED) 理论的中心原则和增加现有模型在整个体重范围内个体的普遍性来扩展体重耻辱理论模型。大学生（样本 1：N = 1228；样本 2：N =1368) 完成了评估耻辱感和 ED 症状的在线调查。在每个样本中，多组路径分析分别测试了体重指数 (BMI) 分类（体重不足/平均体重、超重、肥胖）是否调节了一个模型，其中体重耻辱经历与体重偏差内化、身体不满意和五个ED 症状：暴饮暴食、排便、限制、过度运动、增肌行为。结果支持评估模型的整体和每个 BMI 类别中的个体，分别。尽管具有不同 BMI 的个体的关联模式不同，但这些变化是有限的。目前的研究结果表明，体重耻辱对不同 ED 症状的不利影响不仅限于 BMI 升高的个体，并且这些关联通常可以通过相同的机制来解释。建议针对体重范围内的个人进行体重耻辱干预，重点是减少体重偏差内化和身体不满。支持进一步检查体重耻辱与多种 ED 症状之间的关联，而不是去抑制饮食。