Olive Oil Consumption, Risk Factors, and Diseases: An Umbrella Review
Fraga SRO, Zago L, Curioni CC
Nutrition reviews · 3 citations
How it was studied
- Design
- Systematic review (indexed by PubMed)
- Studied in
- People
- Main outcome
- Clinical events such as disease or death
- Intake measured by
- Not stated
Who paid for it
- Funding
- Independent funding
- Government
- Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
- Government
- CAPES
- Grants
- Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (31004016052P7)
Based on 2 listed funder(s).
Publication
- Published
- 2024-07-13 · Nutr Rev · vol. 83 · issue 3 · pp. e1311–e1328
- Publisher
- Oxford University Press
- Cited
- 6 citations · more than 69% of similar papers · 1.0× the field average
- References
- 31 works
- Access
- Paywalled
- Research areas
- Edible Oils Quality and Analysis · Nutritional Studies and Diet · Nuts composition and effects
- Keywords
- Medicine, Observational study, Environmental health, Systematic review, Randomized controlled trial, Context (archaeology), Type 2 diabetes, MEDLINE, Diabetes mellitus, Internal medicine, Biology, Endocrinology
- MeSH
- humans, neoplasms, cardiovascular diseases, diabetes mellitus, type 2, diet, risk factors, randomized controlled trials as topic, olive oil, observational studies as topic, systematic reviews as topic
3 authors
From BR
- Shyrlei R O FragaUniversidade do Estado do Rio de Janeiro
- Lília ZagoUniversidade do Estado do Rio de Janeiro
- Cíntia Chaves Curioni · correspondingUniversidade do Estado do Rio de Janeiro
Abstract
Context
Olive oil is a vegetable oil that provides health benefits, including a reduction in free radicals and total cholesterol and prevention of chronic diseases. The escalating incidence of chronic diseases presents a substantial challenge to public health, prompting numerous studies to assess these health-related effects. Despite several systematic reviews and meta-analyses summarizing the association between olive oil consumption and specific health outcomes, there is no summary of the accumulated evidence from these reviews.
Objective
This umbrella review summarizes the evidence on olive oil consumption or intervention in adults and its association with multiple risk factors and diseases.
Data sources
We retrieved systematic reviews of randomized trials or observational studies on oral interventions or the consumption of olive oil. The systematic search encompassed databases including MEDLINE, Embase, Scopus, Web of Science, LILACS, and CENTRAL from inception to February 6, 2023.
Data extraction
Two independent reviewers conducted data extraction and assessed methodological quality using the Joanna Briggs Institute tool.
Data analysis
Overall, 17 systematic reviews of randomized trials and observational studies, covering outcomes such as cardiovascular diseases, cancer, type 2 diabetes, glucose metabolism, inflammatory and oxidative markers, and all-cause mortality, were included. The evidence suggests a beneficial association between olive oil consumption and cardiovascular diseases, cancer, type 2 diabetes, and all-cause mortality. However, the evidence was less definitive for inflammatory markers, oxidative stress, glucose metabolism, and blood lipid outcomes. Several meta-analyses revealed high heterogeneity and wide confidence intervals, along with a limited number of randomized clinical trials.
Conclusion
Given the high heterogeneity and low quality of evidence, further studies involving randomized trials are imperative. Prioritizing an in-depth analysis of specific olive oil components and using a control group with distinct characteristics and different effects is strongly recommended.
Systematic review registration
PROSPERO registration no. CRD42022357290.
Abstract via Europe PMC. Copyright remains with the authors or publisher.
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