Effects of fruit and vegetable intake on memory and attention: a systematic review of randomized controlled trials

Khor, Khai Ling and Kumarasuriar, Vashnarekha and Tan, Kok Wei and Ooi, Pei Boon and Chia, Yook Chin (2024) Effects of fruit and vegetable intake on memory and attention: a systematic review of randomized controlled trials. Systematic Reviews, 13 (1). p. 151. ISSN 2046-4053, DOI https://doi.org/10.1186/s13643-024-02547-8.

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Official URL: https://doi.org/10.1186/s13643-024-02547-8

Abstract

Background Memory and attention are important for daily functioning, and their function deteriorates due to aging. However, fruit and vegetable consumption are one of the protective factors against deterioration in memory and attention. This systematic review of randomized controlled trials (RCTs) aims to identify the effects of fruit and vegetable consumption on memory and attention.Methods We conducted a systematic search in EBSCOhost, ProQuest, PubMed, Embase, and Web of Science from inception up to 06/09/2022. The inclusion criteria were peer-reviewed articles, fruit and vegetable intake measured using randomized controlled trials, and the outcome measures that showed the results of memory and attention scores. Two researchers independently extracted articles that met the selection criteria and evaluated the quality of each study.Results There were 70 articles identified from the databases, of which 13 articles met the inclusion criteria and were included in this systematic review. There were 493 participants in total. The results show that consumption of fruit and vegetable intake improved memory and attention in longitudinal studies (10 to 12 weeks). Children showed improvement in immediate recall after supplementation with blueberries. Older adults required a higher dose of fruit and vegetable intake consumption to achieve significant improvement compared with children and younger adults. Furthermore, the effect of fruits and vegetables on memory showed better immediate memory recall than delayed recall.Conclusion This systematic review showed that there is an improvement in memory and attention with fruit and vegetable intake consumption. Hence, awareness of fruit and vegetable intake consumption is important to maintain cognitive health.

Item Type: Article
Funders: Sunway University
Uncontrolled Keywords: Fruits; Vegetables; Memory; Attention; Randomized controlled trial; Systematic review
Subjects: R Medicine
Divisions: Faculty of Medicine
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 20 Sep 2024 02:24
Last Modified: 20 Sep 2024 02:24
URI: http://eprints.um.edu.my/id/eprint/45153

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