Barros Ludmila de Melo, Peixoto Vanessa Amorim, Carvalho Guilherme César Oliveira de, Pereira Micnéias Róberth, Carnaúba Rodrigo Tenório Lins, Bueno Nassib Bezerra
Laboratório de Nutrição e Metabolismo (LANUM), Programa de Pós-Graduação em Nutrição (PPGNUT), Faculdade de Nutrição, Universidade Federal de Alagoas, Campus AC Simões, Av. Lourival Melo Mota, s/n, Cidade Universitária, Maceió 57072-900, AL, Brazil.
Nutrients. 2025 Jul 5;17(13):2236. doi: 10.3390/nu17132236.
: A faster eating rate is associated with increased energy intake and risk of obesity. High consumption of ultra-processed foods (UPFs) is associated with a faster eating rate. Psychobehavioral aspects, such as body image self-perception, eating disorders, and anxiety, may modulate this eating behavior. Therefore, this study examined the moderating role of psychobehavioral factors in the association between meal type (UPF vs non-UPF) and eating rate among individuals with obesity. : It is a secondary analysis of a randomized, parallel clinical trial conducted with 39 adults who have obesity. Participants were assigned to consume either a UPF-only composed meal or a UPF-free meal, both of which were isoenergetic (~550 kcal). Psychobehavioral variables (food addiction-mYFAS 2.0, body image perception and satisfaction-Silhouette Rating Scale, eating disorders-EAT-26, and anxiety-GAD-7) were assessed. Eating rate was measured in kcal/min. : Body image perception and satisfaction significantly interacted with the type of meal. In the UPF group, lower body image dissatisfaction was associated with a higher eating rate (β = 4.79 kcal/min; 95% CI: 1.40; 8.19; = 0.007), while a higher body image perception score was associated with a lower eating rate (β = -4.61 kcal/min; 95% CI: -8.57; -0.65; = 0.024). No significant associations were observed for food addiction scores, eating disorders or anxiety. : Body image modulates the eating rate in the context of UPF consumption. These findings suggest that interventions against obesity should consider individual psychobehavioral characteristics.
进食速度加快与能量摄入增加及肥胖风险升高相关。超加工食品（UPF）的高摄入量与进食速度加快有关。心理行为方面，如身体形象自我认知、饮食失调和焦虑，可能会调节这种饮食行为。因此，本研究探讨了心理行为因素在肥胖个体的膳食类型（UPF与非UPF）与进食速度之间的关联中所起的调节作用。
这是一项对39名肥胖成年人进行的随机平行临床试验的二次分析。参与者被分配食用仅由超加工食品组成的膳食或不含超加工食品的膳食，两者能量相同（约550千卡）。评估了心理行为变量（食物成瘾 - mYFAS 2.0、身体形象认知与满意度 - 轮廓评分量表、饮食失调 - EAT - 26和焦虑 - GAD - 7）。以千卡/分钟为单位测量进食速度。
身体形象认知与满意度与膳食类型存在显著交互作用。在超加工食品组中，较低的身体形象不满与较高的进食速度相关（β = 4.79千卡/分钟；95%置信区间：1.40；8.19；P = 0.007），而较高的身体形象认知得分与较低的进食速度相关（β = -4.61千卡/分钟；95%置信区间：-8.57；-0.65；P = 0.024）。在食物成瘾得分、饮食失调或焦虑方面未观察到显著关联。
身体形象在超加工食品消费背景下调节进食速度。这些发现表明，针对肥胖的干预措施应考虑个体的心理行为特征。
