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SYSTEMATIC REVIEW article

Front. Nutr.
Sec. Nutrition, Psychology and Brain Health
Volume 11 - 2024 | doi: 10.3389/fnut.2024.1463801

The effect of consuming nuts on cognitive function: A systematic review and meta-analysis of randomized clinical trials

Provisionally accepted
Mahdi Moabedi Mahdi Moabedi 1*Mohammadreza Aliakbari Mohammadreza Aliakbari 1Shima Erfanian Shima Erfanian 2Aliyu Jibril Tijani Aliyu Jibril Tijani 3Alireza Milajerdi Alireza Milajerdi 2
  • 1 Kashan University of Medical Sciences, Kashan, Iran
  • 2 Isfahan University of Medical Sciences, Isfahan, Isfahan, Iran
  • 3 Tehran University of Medical Sciences, Tehran, Tehran, Iran

The final, formatted version of the article will be published soon.

    Background: Results from clinical trials investigating the effect of nuts consumption on cognition are conflicting. We decided to conduct the current meta-analysis to summarize all available evidence on the effect of consuming nuts on cognition scores.We conducted a comprehensive search in the online databases using relevant keywords up to June 2024. We included all the published Randomized clinical trials (RCTs) investigating the effect of nuts, compared to control, on cognition scores.Results: Overall, 5 trials were included with a total sample size of 928 adults. Based on 6 effect sizes from these 5 trials, we did not find a significant effect of nuts on cognition function [Standardized Mean Difference (SMD): 0.27, 95% CI: -0.65 to 1.19, P =0.57].Our review could not find a significant effect of nuts on cognition function. Future high-quality RCTs with larger sample sizes should be conducted to shed light on the impact of nuts on cognition.

    Keywords: Cognition, adults, Meta-analysis, clinical trials, Nuts

    Received: 12 Jul 2024; Accepted: 26 Aug 2024.

    Copyright: © 2024 Moabedi, Aliakbari, Erfanian, Tijani and Milajerdi. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

    * Correspondence: Mahdi Moabedi, Kashan University of Medical Sciences, Kashan, Iran

    Disclaimer: All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.