A low-cost Behavioural Nudge and choice architecture intervention targeting school lunches increases children’s consumption of fruit: a cluster randomised trial

Abstract Background Research has consistently indicated that most children do not consume sufficient fruit and vegetables to provide them with a healthy, balanced diet. This study set out to trial a simple, low-cost behavioural nudge intervention to encourage children to select and consume more frui...

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Main Authors: Mariel Marcano-Olivier, Ruth Pearson, Allycea Ruparell, Pauline J. Horne, Simon Viktor, Mihela Erjavec
Format: Article
Language:English
Published: BMC 2019-02-01
Series:International Journal of Behavioral Nutrition and Physical Activity
Subjects:
Online Access:http://link.springer.com/article/10.1186/s12966-019-0773-x
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author Mariel Marcano-Olivier
Ruth Pearson
Allycea Ruparell
Pauline J. Horne
Simon Viktor
Mihela Erjavec
author_facet Mariel Marcano-Olivier
Ruth Pearson
Allycea Ruparell
Pauline J. Horne
Simon Viktor
Mihela Erjavec
author_sort Mariel Marcano-Olivier
collection DOAJ
description Abstract Background Research has consistently indicated that most children do not consume sufficient fruit and vegetables to provide them with a healthy, balanced diet. This study set out to trial a simple, low-cost behavioural nudge intervention to encourage children to select and consume more fruit and vegetables with their lunchtime meal in a primary school cafeteria. Methods Four primary schools were randomly allocated to either the control or the intervention condition and baseline data were collected over two days in each school. Following this, changes were made to the choice architecture of the school cafeterias in the intervention schools and maintained over a three-week period. The intervention included improved positioning and serving of fruit, accompanied by attractive labelling of both fruit and vegetables on offer. Next, data were collected over two days in each school, with menus matched in each instance between baseline and follow-up. We employed a validated and sensitive photographic method to estimate individual children’s (N = 176) consumption of vegetables, fruit, vitamin C, fibre, total sugars, and their overall calorie intake. Results Significant increases were recorded in the intervention schools for children’s consumption of fruit, vitamin C, and fibre. No significant changes were observed in the control condition. The increases in fruit consumption were recorded in a large proportion of individual children, irrespective of their baseline consumption levels. No changes in vegetable consumption were observed in either condition. Conclusions These results are the first to show that modest improvements to the choice architecture of school catering, and inclusion of behavioural nudges, can significantly increase fruit consumption, rather than just selection, in primary-age children. This has implications for the development of national and international strategies to promote healthy eating in schools. Trial registration AsPredicted: 3943 05/02/2017. URL: https://aspredicted.org/see_one.php?a_id=3943
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spelling doaj.art-2e5784c6decc4c419e7f0deba85eab322022-12-22T03:47:55ZengBMCInternational Journal of Behavioral Nutrition and Physical Activity1479-58682019-02-011611910.1186/s12966-019-0773-xA low-cost Behavioural Nudge and choice architecture intervention targeting school lunches increases children’s consumption of fruit: a cluster randomised trialMariel Marcano-Olivier0Ruth Pearson1Allycea Ruparell2Pauline J. Horne3Simon Viktor4Mihela Erjavec5The Centre for Activity and Eating Research, Bangor University, School of PsychologyThe Centre for Activity and Eating Research, Bangor University, School of PsychologyThe Centre for Activity and Eating Research, Bangor University, School of PsychologyThe Centre for Activity and Eating Research, Bangor University, School of PsychologyThe Centre for Activity and Eating Research, Bangor University, School of PsychologyThe Centre for Activity and Eating Research, Bangor University, School of PsychologyAbstract Background Research has consistently indicated that most children do not consume sufficient fruit and vegetables to provide them with a healthy, balanced diet. This study set out to trial a simple, low-cost behavioural nudge intervention to encourage children to select and consume more fruit and vegetables with their lunchtime meal in a primary school cafeteria. Methods Four primary schools were randomly allocated to either the control or the intervention condition and baseline data were collected over two days in each school. Following this, changes were made to the choice architecture of the school cafeterias in the intervention schools and maintained over a three-week period. The intervention included improved positioning and serving of fruit, accompanied by attractive labelling of both fruit and vegetables on offer. Next, data were collected over two days in each school, with menus matched in each instance between baseline and follow-up. We employed a validated and sensitive photographic method to estimate individual children’s (N = 176) consumption of vegetables, fruit, vitamin C, fibre, total sugars, and their overall calorie intake. Results Significant increases were recorded in the intervention schools for children’s consumption of fruit, vitamin C, and fibre. No significant changes were observed in the control condition. The increases in fruit consumption were recorded in a large proportion of individual children, irrespective of their baseline consumption levels. No changes in vegetable consumption were observed in either condition. Conclusions These results are the first to show that modest improvements to the choice architecture of school catering, and inclusion of behavioural nudges, can significantly increase fruit consumption, rather than just selection, in primary-age children. This has implications for the development of national and international strategies to promote healthy eating in schools. Trial registration AsPredicted: 3943 05/02/2017. URL: https://aspredicted.org/see_one.php?a_id=3943http://link.springer.com/article/10.1186/s12966-019-0773-xChoice architectureBehavioural nudgesFruitPlant-based foodsConsumptionSchool lunch
spellingShingle Mariel Marcano-Olivier
Ruth Pearson
Allycea Ruparell
Pauline J. Horne
Simon Viktor
Mihela Erjavec
A low-cost Behavioural Nudge and choice architecture intervention targeting school lunches increases children’s consumption of fruit: a cluster randomised trial
International Journal of Behavioral Nutrition and Physical Activity
Choice architecture
Behavioural nudges
Fruit
Plant-based foods
Consumption
School lunch
title A low-cost Behavioural Nudge and choice architecture intervention targeting school lunches increases children’s consumption of fruit: a cluster randomised trial
title_full A low-cost Behavioural Nudge and choice architecture intervention targeting school lunches increases children’s consumption of fruit: a cluster randomised trial
title_fullStr A low-cost Behavioural Nudge and choice architecture intervention targeting school lunches increases children’s consumption of fruit: a cluster randomised trial
title_full_unstemmed A low-cost Behavioural Nudge and choice architecture intervention targeting school lunches increases children’s consumption of fruit: a cluster randomised trial
title_short A low-cost Behavioural Nudge and choice architecture intervention targeting school lunches increases children’s consumption of fruit: a cluster randomised trial
title_sort low cost behavioural nudge and choice architecture intervention targeting school lunches increases children s consumption of fruit a cluster randomised trial
topic Choice architecture
Behavioural nudges
Fruit
Plant-based foods
Consumption
School lunch
url http://link.springer.com/article/10.1186/s12966-019-0773-x
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