超越情感饥饿：探索微生物-肠道-脑轴作为情绪性进食机制框架的探究

Emotional eating (EE), characterized by food intake in response to affective states rather than physiological hunger, has traditionally been conceptualized through psychological models of stress, emotion dysregulation, and reward-driven behaviour. These frameworks, however, do not fully explain interindividual differences in vulnerability or the persistence of maladaptive eating patterns. This narrative review critically examines the microbiota–gut–brain axis as a potential mechanistic framework linking psychological, neurobiological, and nutritional determinants of emotional eating. Evidence