Study Title
Effect of Olive Oil Consumption on Cardiovascular Disease, Cancer, Type 2 Diabetes, and All-Cause Mortality: A Systematic Review and Meta-Analysis
Principal Investigator
Miguel A. Martínez-González, Carmen Sayón-Orea, Vanessa Bullón-Vela, Maira Bes-Rastrollo, Fernando Rodríguez-Artalejo, María José Yusta-Boyo, Marta García-Solano
Affiliation
University of Navarra, Spain; Universidad Autónoma de Madrid, Spain; Spanish Agency for Food Safety & Nutrition (AESAN), Spain
Start Date
Not specified
End Date
Not specified
Study Objective
To assess the association between olive oil consumption and the primary risk of cardiovascular disease (CVD), cancer, type 2 diabetes (T2D), and all-cause mortality.
Short Abstract
This systematic review and meta-analysis analyzed 36 studies to evaluate the effect of olive oil consumption on CVD, cancer, T2D, and all-cause mortality. Results showed a reduced risk of CVD, T2D, and all-cause mortality with higher olive oil intake, but no significant association with cancer risk.
Study Design
Systematic review and meta-analysis
Population
General population, including individuals at risk for CVD, cancer, T2D, or mortality
Sample Size
806,203 participants with 49,223 CVD events; 1,285,064 participants with 58,892 cancer cases; 680,239 participants with 13,389 T2D cases; 733,420 participants with 174,081 deaths
Inclusion Criteria
Prospective cohort studies and RCTs evaluating olive oil consumption and its effect on CVD, cancer, T2D, and all-cause mortality
Exclusion Criteria
Ecological studies, cross-sectional designs, case-control studies, and studies not reporting relative risks or hazard ratios for olive oil consumption
Intervention/Exposure
Olive oil consumption
Outcome Measures
Risk reduction in cardiovascular disease, cancer, type 2 diabetes, and all-cause mortality
Funding Source
Not specified
Collaborating Institutions
University of Navarra, Universidad Autónoma de Madrid, AESAN
Ethics Approval
Not specified
Publication Status
Published in Clinical Nutrition (2022).
Keywords
Olive oil, cardiovascular disease, cancer, type 2 diabetes, all-cause mortality, meta-analysis
Data Collection Methods
Systematic review and meta-analysis of cohort studies and RCTs
Primary Data Availability
Not applicable
Contact Information
Miguel A. Martínez-González:
