Data_Sheet_1_Internalised Weight Stigma Moderates the Impact of a Stigmatising Prime on Eating in the Absence of Hunger in Higher- but Not Lower-Weight Individuals.PDF

A considerable body of evidence links internalised weight stigma with higher levels of disordered eating behaviour and cognitions in both normative- and higher-weight populations. However, to date, the impact of internalised weight stigma on objectively measured food intake has not been explored. In the present study, a weight-diverse sample of 158 non-smoking adults (BMI ≥ 25 kg/m2n = 72, BMI < 25 kg/m2n = 86) were recruited to a study on “The effects of hunger and satiety on information processing.” Participants first completed a series of online questionnaires, then attended a lab visit in a fed state. Participants were randomised to read a sham news article on the negative consequences of either weight (stigma condition) or smoking (control condition) and answer some questions about the article. Then, under the pretence of a non-study-relevant break, participants were exposed to a pre-weighed selection of sweet and savoury snacks for 15 min. Mood and hunger levels were assessed prior to and after reading the vignette, and after the break. In contrast to the relationship with self-report eating behaviour, internalised weight stigma was not a significant independent predictor of total energy intake and did not moderate the relationship between exposure to the stigma prime and calories consumed. However, differences emerged on the basis of participants’ weight status. Higher-weight participants with high levels of internalised weight stigma consumed fewer snack calories following exposure to a weight-stigma prime compared with a neutral prime (B = −137, SE = 58, t = −2.35, p = 0.020, 95% CI −252, −22) whereas those with low levels of internalised weight stigma tended to eat more in the weight stigma condition (B = 118, SE = 62, t = 1.91, p = 0.059, 95% CI −4, 241). In normative-weight participants, no differences in energy intake by levels of internalised weight stigma were observed. These findings suggest differences in the relationships between internalised weight stigma and self-reported disordered eating behaviour versus eating in the absence of hunger (EAH) measured under laboratory conditions. Additionally, internalised weight stigma appears to have differential effects on response to stigma in higher-weight and normative-weight individuals.

大量证据表明，内在化的体重歧视与正常体重及超重人群中的饮食失调行为和认知水平呈正相关。然而，截至目前，内在化体重歧视对客观测量的食物摄入量的影响尚未得到探讨。在本研究中，招募了158名非吸烟成年人（BMI ≥ 25 kg/m2，n = 72；BMI < 25 kg/m2，n = 86）参与关于“饥饿和饱腹感对信息处理的影响”的研究。参与者首先完成了一系列在线问卷，然后以饱腹状态参加实验室访问。参与者被随机分配阅读一篇关于体重（歧视条件）或吸烟（对照组）负面后果的虚假新闻报道，并回答有关文章的问题。随后，在非研究相关的休息期间，参与者被暴露于预先称重的甜味和咸味零食中，持续15分钟。在阅读情景之前和之后，以及休息之后，评估了情绪和饥饿水平。与自我报告的饮食行为相关联的关系相反，内在化体重歧视并非总能量摄入的显著独立预测因素，且并未调节暴露于歧视提示与摄入卡路里之间的关系。然而，根据参与者的体重状况出现了差异。与中性提示相比，高体重且内在化体重歧视程度高的参与者在接触体重歧视提示后摄入的零食卡路里较少（B = −137，SE = 58，t = −2.35，p = 0.020，95% CI −252，−22），而内在化体重歧视程度低的参与者倾向于在体重歧视条件下摄入更多（B = 118，SE = 62，t = 1.91，p = 0.059，95% CI −4，241）。在正常体重参与者中，未观察到内在化体重歧视程度与能量摄入之间的差异。这些发现表明，内在化体重歧视与自我报告的饮食失调行为之间的关系与在实验室条件下测量的非饥饿状态下的进食（EAH）之间的关系存在差异。此外，内在化体重歧视似乎对超重和正常体重个体对歧视的反应有差异化的影响。