Stressors, Emotions and Eating: Evidence for Time-Pressure-Driven Snacking Rather Than Emotional Eating

Area of Science:

• Behavioral Science
• Psychology
• Nutrition Science

Background:

• Inconsistent findings link stress and emotions to unhealthy eating patterns.
• Stress eating and emotional eating are often conflated, obscuring distinct mechanisms.
• Understanding specific triggers is crucial for effective dietary interventions.

Purpose of the Study:

• To differentiate the effects of stressors and emotions on eating behaviors.
• To examine associations between daily stressors, emotional states, and eating aspects (craving, quantity, healthiness, snacking).
• To investigate the validity of 'emotional eating' as distinct from stress-related eating.

Main Methods:

• Experience-sampling study with 64 participants over 4 weeks.
• Daily smartphone prompts recorded stressors, multidimensional emotional states (valence, arousal, calmness), and eating behaviors.
• Bayesian multilevel models analyzed the relationships between variables.

Main Results:

• General stressors were not associated with snacking.
• Time pressure specifically increased snacking likelihood and decreased food quantity consumed.
• High arousal correlated with increased food intake; no other emotion-eating links were significant.

Conclusions:

• Snacking behavior is more influenced by situational constraints (e.g., time pressure) than by general emotional states.
• The concept of 'emotional eating' as emotion-driven snacking independent of stressors lacked support in this study.
• Interventions targeting situational factors, particularly time pressure, may be more effective for modifying eating behaviors.