A smartphone based attentive eating intervention for energy intake and weight loss: results from a randomised controlled trial

Research output: Contribution to journalArticle

Authors

  • Victoria Whitelock
  • Inge Kersbergen
  • Paul Aveyard
  • Jason C G Halford
  • Eric Robinson

External organisations

  • Mental Health Research Unit, School of Health and Related Research (ScHARR), University of Sheffield, Regent Court, 30 Regent Street, Sheffield S1 4DA, UK.
  • Department of Psychological Sciences, University of Liverpool, Eleanor Rathbone Building, Bedford Street South, Liverpool, L69 7ZA, UK.
  • Nuffield Department of Primary Care Health Services, University of Oxford, Oxford, UK
  • Cancer Intelligence, Cancer Research UK, Angel Building, 407 St John Street, London, EC1V 4AD, UK

Abstract

BACKGROUND: Laboratory studies suggest that eating more 'attentively' (e.g. attending to food being eaten and recalling eating episodes) can reduce food intake among participants with both healthy weight and overweight. The aim of this trial was to assess whether a smartphone application that encourages a more attentive eating style reduces energy intake and promotes weight loss.

METHODS: In an open-label, single centre, parallel groups, individually randomised controlled trial, 107 adults with overweight/obesity in Merseyside, UK used an attentive eating smartphone application along with standard dietary advice (intervention group) or standard dietary advice only (control group) for 8 weeks. The primary outcomes were change in body weight at 8 weeks and energy intake at 4 and 8 weeks. Additional outcomes included self-reported eating behaviours measured at 8 weeks. Differences between groups were assessed with linear regression (adjusted) using multiple imputation for missing data. Study protocol registered prospectively at ( https://doi.org/10.17605/osf.io/btzhw ).

RESULTS: There was no significant difference between the intervention and control group in weight lost at 8 weeks, or change in self-reported 24 h or objective taste-test energy intake at 4 or 8 weeks. Mean weight loss in the intervention group (n = 53) was 1.2 kg and 1.1 kg in the control group (n = 54), adjusted difference of - 0.10 (- 1.6 to 1.3) kg. Self-reported eating behaviours at 8 weeks also did not differ across groups. The intervention was largely used as intended and a per protocol analysis confined to participants in the intervention group that used the attentive eating smartphone application regularly and as intended also showed no effect on energy intake or weight loss.

CONCLUSIONS: A smartphone based attentive eating intervention and standard dietary advice did not result in reduced energy intake or greater weight loss at 4 or 8 week follow-up than standard dietary advice alone.

TRIAL REGISTRATION: ClinicalTrials.gov, NCT03602001 . Registered retrospectively on 26th July 2018. Prospectively registered on the Open Science Framework on 11th August 2017.

Details

Original languageEnglish
Article number611
JournalBMC Public Health
Volume19
Issue number1
Publication statusPublished - 21 May 2019