The effects of olive oil consumption on cognitive performance: a systematic review
Fazlollahi A, Motlagh Asghari K, Aslan C, Noori M, Nejadghaderi SA, Araj-Khodaei M, Sullman MJM, Karamzad N, Kolahi AA, Safiri S
Frontiers in nutrition · 18 citations
How it was studied
- Design
- Systematic review (indexed by PubMed)
- Studied in
- People
- Main outcome
- Health markers and function
- Intake measured by
- Not stated
Who paid for it
- Funding
- Independent funding
- University or hospital
- Tabriz University of Medical Sciences
- University or hospital
- Shahid Beheshti University of Medical Sciences
- University or hospital
- University of Tabriz
Based on 3 listed funder(s) and full-text disclosure statement.
Publication
- Published
- 2023-10-11 · Front Nutr · vol. 10 · p. 1218538
- Publisher
- Frontiers Media
- Cited
- 31 citations · more than 51% of similar papers · 0.5× the field average
- References
- 69 works
- Access
- Open access (journal) · CC-BY
- Research areas
- Edible Oils Quality and Analysis · Nutritional Studies and Diet · Dementia and Cognitive Impairment Research
- Keywords
- Mediterranean diet, Cognition, Medicine, Environmental health, Cognitive decline, Cohort study, Randomized controlled trial, Cohort, Effects of sleep deprivation on cognitive performance, Olive oil, Dementia, Consumption (sociology), Gerontology, Psychiatry, Food science, Internal medicine, Disease, Biology
10 authors
From IR, CY
- Asra FazlollahiTabriz University of Medical Sciences
- Kimia Motlagh AsghariTabriz University of Medical Sciences
- Cynthia AslanTabriz University of Medical Sciences
- Maryam NooriIran University of Medical Sciences
- Seyed Aria NejadghaderiKerman University of Medical Sciences
- Mostafa Araj‐KhodaeiTabriz University of Medical Sciences
Abstract
Introduction
The Mediterranean diet is marked by the regular intake of olive oil, which may play a role in preventing and protecting against cognitive deterioration and dementia. The strength of these effects have been examined by several recent randomized controlled trials (RCTs), but their findings have not been consistent. In light of this inconsistency, the present study performed a systematic review to examine the relationship between the consumption of olive oil and cognition.
Methods
The Web of Science, Scopus, PubMed, and Google Scholar were systematically searched up to August 11, 2023. The review included RCTs, cross-sectional studies, cohort studies and case-control studies that explored the impact of olive oil consumption on cognitive performance among those older than 55 years old. Studies were excluded if they employed a design other than those mentioned above, involved participants under 55 years old, or did not specifically examine the cognitive effects of olive oil consumption. The quality of the included studies were measured using the Cochrane risk-of-bias tool and the Newcastle Ottawa Scale checklists.
Results
Eleven studies were identified, which were comprised of four cross-sectional studies, four prospective cohort studies and three RCTs. The cohort studies and RCTs consistently found that olive oil consumption had a favorable effect on cognitive performance across a number of cognitive domains over time. Similarly, all of the cross-sectional studies reported that the consumption of olive oil was positively associated with cognitive health.
Conclusion
The consumption of olive oil was found to enhance cognitive functioning and to reduce cognitive decline. Further large-scale investigations are required to strengthen this conclusion.
Abstract via Europe PMC. Copyright remains with the authors or publisher (CC BY).
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