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The Effect of Healthy Diet on Cognitive Performance Among Healthy Seniors - A Mini Review.

Authors
  • Klimova, Blanka1
  • Dziuba, Szymon2
  • Cierniak-Emerych, Anna2
  • 1 Department of Applied Linguistics, Faculty of Informatics and Management, University of Hradec Králové, Hradec Králové, Czechia.
  • 2 Faculty of Engineering and Economics, Wrocław University of Economics, Wrocław, Poland. , (Poland)
Type
Published Article
Journal
Frontiers in Human Neuroscience
Publisher
Frontiers Media SA
Publication Date
Jan 01, 2020
Volume
14
Pages
325–325
Identifiers
DOI: 10.3389/fnhum.2020.00325
PMID: 32848680
Source
Medline
Keywords
Language
English
License
Unknown

Abstract

At present, a healthy diet appears to be one of the suitable strategies in slowing down cognitive decline in the process of aging. A number of evidence-based studies confirm its efficacy, safety, and cost-effectiveness. The aim of this mini review is to evaluate and describe recent randomized clinical and cohort studies exploring the effect of healthy diet on cognitive performance among healthy seniors, as well as to update the existing information on this research issue. For these reasons, the authors reviewed full-text, peer-reviewed journal articles written in English and available in Web of Science and PubMed between September 2017 and February 2020. Altogether nine original studies were detected. The results indicate that healthy diet and healthy diet components generally have a positive impact on the enhancement of cognitive functions. Furthermore, the findings reveal that dietary patterns, as well as single nutrients might have a significant effect on specific cognitive domains, such as memory in general, episodic memory, or processing speed. It also seems that a strict adherence to the dietary patterns and a higher diet variety have a more significant effect on the improvement of cognitive functions. Nevertheless, there seem to be gender differences in dietary behavior. More recently, personalized dietary interventions started to be used in delaying cognitive decline among healthy seniors. Therefore, more randomized control trials or N-of-1 trials should be performed in this research area in order to detect the most suitable dietary pattern or nutrients, which would, together with other modifiable lifestyle factors, contribute to the improvement of quality of life of the aging population. Copyright © 2020 Klimova, Dziuba and Cierniak-Emerych.

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