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Is olive oil good for you? A systematic review and meta-analysis on anti-inflammatory benefits from regular dietary intake

2020-01Journal article Restricted access
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datacite.subject.fosCiências Médicas::Outras Ciências Médicas
datacite.subject.fosCiências Médicas::Medicina Básica
datacite.subject.sdg03:Saúde de Qualidade
dc.contributor.authorFernandes, João
dc.contributor.authorFialho, Mónica
dc.contributor.authorSantos, Rodrigo
dc.contributor.authorPeixoto-Plácido, Catarina
dc.contributor.authorMadeira, Teresa
dc.contributor.authorSousa-Santos, Nuno
dc.contributor.authorVirgolino, Ana
dc.contributor.authorSantos, Osvaldo
dc.contributor.authorCarneiro, António Vaz
dc.date.accessioned2025-10-23T10:36:31Z
dc.date.available2025-10-23T10:36:31Z
dc.date.issued2020-01
dc.description.abstractThe prevalence of non-communicable diseases is rapidly increasing, and evidence shows that diet and lifestyle are key areas of intervention to decrease their burden. Olive oil is considered one of the key nutritional components responsible for the benefits of the Mediterranean diet, which is characterized by the use of olive oil in meals as the main source of fat; a high consumption of water, fruits, nuts, vegetables, legumes, whole grains, spices, and herbs; a moderate consumption of dairy products (mainly cheese and yogurt), fish, poultry, and red wine; and a reduced consumption of red meat and processed foods. The aim of this review was to summarize evidence from randomized controlled trials on the effect of regular dietary intake of olive oil on three inflammatory markers: C-reactive protein, interleukin-6, and tumor necrosis factor-α. Reviewed RCTs reveal beneficial effects of olive oil by reducing levels of inflammation markers. Olive oil taken on a regular basis can be a good dietary fat alternative, especially to manage IL-6. However, further research is required to clarify the effects of olive oil consumption on inflammation, comparing to other fats. Moreover, olive oil daily dosage, different time-lenght intervention and follow-up periods should be taken into consideration.eng
dc.description.sponsorshipAcknowledgments The authors acknowledge the valuable methodological support of Ricardo Fernandes regarding relevant specific meta-analysis procedures. His advice contributed to the quality of this article. The authors also acknowledge Joana Costa for language editing. The data sets used or analyzed in this study are available from the corresponding author on reasonable request.
dc.description.sponsorshipThe study was funded by Gallo WW, who had no role in methodological procedure nor on data interpretation. JF and MF participated in the study design, literature search, data extraction, and meta-analysis. JF wrote the first draft of the manuscript. RS was involved in the literature search, data extraction, and analysis. CPP, TM, NSS were involved in the study design and selection of papers. AV participated in the study design and provided management support of the project. OS supervised the methodological components of the study. AVC performed the role of principal investigator. All authors reviewed the manuscript and approved the final version. The authors have no conflicts of interest to declare.
dc.identifier.citationJoão Fernandes, Mónica Fialho, Rodrigo Santos, Catarina Peixoto-Plácido, Teresa Madeira, Nuno Sousa-Santos, Ana Virgolino, Osvaldo Santos, António Vaz Carneiro, Is olive oil good for you? A systematic review and meta-analysis on anti-inflammatory benefits from regular dietary intake, Nutrition, Volume 69, 2020, 110559, ISSN 0899-9007, https://doi.org/10.1016/j.nut.2019.110559.
dc.identifier.doi10.1016/j.nut.2019.110559
dc.identifier.eissn1873-1244
dc.identifier.issn0899-9007
dc.identifier.urihttp://hdl.handle.net/10400.8/14361
dc.language.isoeng
dc.peerreviewedyes
dc.publisherElsevier
dc.relation.hasversionhttps://www.sciencedirect.com/science/article/pii/S0899900719301182?via%3Dihub
dc.relation.ispartofNutrition
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectMediterranean diet
dc.subjectInflammation
dc.subjectC-reactive protein
dc.subjectInterleukin-6
dc.subjectTumor necrosis factor-a
dc.titleIs olive oil good for you? A systematic review and meta-analysis on anti-inflammatory benefits from regular dietary intakeeng
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage10
oaire.citation.startPage1
oaire.citation.titleNutrition
oaire.citation.volume69
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameSousa Santos
person.givenNameNuno
person.identifier.ciencia-id8F17-95D6-AE7E
person.identifier.orcid0000-0002-8979-8551
person.identifier.scopus-author-id57202154870
relation.isAuthorOfPublication30e2897a-c5c4-4ebc-a58d-97eba06de75e
relation.isAuthorOfPublication.latestForDiscovery30e2897a-c5c4-4ebc-a58d-97eba06de75e

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The prevalence of non-communicable diseases is rapidly increasing, and evidence shows that diet and lifestyle are key areas of intervention to decrease their burden. Olive oil is considered one of the key nutritional components responsible for the benefits of the Mediterranean diet, which is characterized by the use of olive oil in meals as the main source of fat; a high consumption of water, fruits, nuts, vegetables, legumes, whole grains, spices, and herbs; a moderate consumption of dairy products (mainly cheese and yogurt), fish, poultry, and red wine; and a reduced consumption of red meat and processed foods. The aim of this review was to summarize evidence from randomized controlled trials on the effect of regular dietary intake of olive oil on three inflammatory markers: C-reactive protein, interleukin-6, and tumor necrosis factor-α. Reviewed RCTs reveal beneficial effects of olive oil by reducing levels of inflammation markers. Olive oil taken on a regular basis can be a good dietary fat alternative, especially to manage IL-6. However, further research is required to clarify the effects of olive oil consumption on inflammation, comparing to other fats. Moreover, olive oil daily dosage, different time-lenght intervention and follow-up periods should be taken into consideration.
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