External Eating
External eating is eating in response to outside triggers such as the sight or smell of food, rather than because of true hunger.
Plain English
Patient-Friendly Explanation
External eating is eating in response to outside triggers such as the sight or smell of food, rather than because of true hunger. People who eat this way tend to overeat when food is available, even shortly after a meal. It is one of several eating styles that can be identified with a simple questionnaire.
Medical
Clinical Definition
External eating is one of the three eating behaviour domains — alongside dietary restraint and emotional eating — assessed by the Three-Factor Eating Questionnaire. It reflects heightened responsiveness to visual, olfactory and social food cues, mediated by reward-system reactivity and conditioned cue–craving associations rather than homeostatic need. Higher external eating scores are associated with greater energy intake, more frequent snacking and higher body mass index in cross-sectional and prospective studies.
Key Insight
Why It Matters
For many patients the problem is not hunger but exposure: food that is visible and within easy reach tends to get eaten. Simple environmental changes — smaller plates and keeping treats out of sight — are effective strategies we recommend alongside medical treatment.
Sources
Reviewed against standard medical references.
Medically reviewed by
Family Physician & Registered Acupuncturist, Accord Medical Clinic. MBBS (NUS), Graduate Diploma in Family Medicine (NUS), Graduate Diploma in Acupuncture (Singapore College of TCM).
Last reviewed: September 2026
This page is general health education, not medical advice. Whether any treatment is appropriate for you is a decision made in consultation after assessment.
