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Could a smoothie, rich in nutrients and bioactive substances, improve school performance?
Kristianstad University, School of Education and Environment, Avdelningen för Naturvetenskap.
Sveriges lantbruksuniversitet, SLU.ORCID iD: 0000-0003-3229-5010
Kristianstad University, Research Environment Food and Meals in Everyday Life (MEAL). Kristianstad University, School of Education and Environment, Avdelningen för Humanvetenskap.ORCID iD: 0000-0003-2450-066X
Kristianstad University, Research Environment Food and Meals in Everyday Life (MEAL). Kristianstad University, School of Education and Environment, Avdelningen för Humanvetenskap.ORCID iD: 0000-0001-9663-5390
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2015 (English)In: Annals of Nutrition and Metabolism, ISSN 0250-6807, E-ISSN 1421-9697, Vol. 67, no Suppl. 1, 212- p., 149/1319Article in journal, Meeting abstract (Refereed) Published
Abstract [en]

Introduction: Fruits and vegetables contain vitamins, minerals and other bioactive substances, which are important for intellectual performance. In a previous study it was shown that approximately two third of the pupils were hungry the last lesson before lunch. The average fruit and vegetable intake at lunch was much lower than the recommendations.

Objectives: The purpose of this pilot study was to investigate effect on attention and school performance of a vegetable smoothie, rich in berries, fruits and vegetables, served at the mid-morning brake.

Method / Design: In total 250 Swedish children aged 10-12 years participated. The study was designed as a cross-over trial with two study periods of ten schooldays. The children were randomly divided into two groups and were administered either an active smoothie (smoothie 1; group A) or a fruit-based placebo with the same energy content (smoothie 2; group B). Both smoothies were designed to provide 5% of the daily energy. After a three week wash-out period, group A was administered smoothie 2 and group B, smoothie 1. Statistical tests were performed using SPSS package, version 22.0, using Independent-Samples T test. Analysis included processing speed (PTO), concentration performance (CP) and percentages of error (Ep) as assessed by the D2-test

Results: Preliminary analyses indicate that PTO and CP increased during the intervention period, whilst Ep decreased, for both groups. The effect was stronger in the group drinking the active smoothie, than in the group drinking the placebo. The effect might partly be caused by the addition of water and energy

Conclusions: Attention, and thereby also school performance, may be improved by mid-morning consumption of a smoothie containing water, energy and preferably nutrients and other bioactive substances.

Place, publisher, year, edition, pages
2015. Vol. 67, no Suppl. 1, 212- p., 149/1319
Keyword [en]
School performance, fruit and berries
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:hkr:diva-14902DOI: 10.1159/000440895ISI: 000374988801034OAI: oai:DiVA.org:hkr-14902DiVA: diva2:858496
Conference
12th European Nutrition Conference(FENS), Berlin, Germany, October 20–23, 2015
Projects
Skolskjutsen
Note

Projektet "Skolskjutsen – Skånsk smart smoothie för skolbarn" har finansierats av Länsstyrelsen i Skåne inom den Skånska Dryckesstrategin 2013–2020 via Europeiska jordbruksfonden för landsbygdsutveckling.

Available from: 2015-10-02 Created: 2015-10-02 Last updated: 2017-02-13Bibliographically approved

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