Energy intake during and after a meal
Evidence basis: randomised trials
Avoiding passive distractions may limit short-term intake, but results depend on the distraction.
Population: Adults in 50 experimental studies, mostly measuring food consumed in controlled eating settings.
Research details
Summary
A 2026 review pooled 50 experimental studies: 40 measured concurrent intake and 10 measured later intake. Passive distraction increased concurrent intake (SMD 0.272, 95% CI 0.128 to 0.417), while the overall concurrent effect across all distraction types was nonsignificant (P = 0.051). Distraction increased intake at a subsequent eating episode (SMD 0.419, 95% CI 0.195 to 0.642). Avoiding distraction reverses the experimental comparison; the estimates are expressed as distracted minus control intake.
Why this certainty
Limited certainty reflects experimental manipulation but short follow-up, heterogeneity and sensitivity to the distraction type. It does not establish long-term weight or disease benefit.
Limitations
The passive-distraction estimate is a subgroup result, and active cognitive or physical distractors did not have the same effect. Studies measured brief eating occasions rather than sustained weight change, and the full review identifies substantial heterogeneity and methodological bias.
Effect estimate
Passive distraction minus control: SMD 0.272 (95% CI 0.128 to 0.417) for concurrent energy intake.
