Adherence to Mediterranean diet and health status: meta-analysis
2008

Mediterranean Diet and Health

Sample size: 1574299 publication 10 minutes Evidence: high

Author Information

Author(s): Sofi Francesco, Cesari Francesca, Abbate Rosanna, Gensini Gian Franco, Casini Alessandro

Primary Institution: University of Florence

Hypothesis

Does adherence to a Mediterranean diet reduce mortality and incidence of chronic diseases?

Conclusion

Greater adherence to a Mediterranean diet is associated with significant improvements in health status, including reduced mortality and incidence of chronic diseases.

Supporting Evidence

  • A two point increase in adherence score was significantly associated with a reduced risk of mortality.
  • Greater adherence to a Mediterranean diet reduced cardiovascular mortality by 9%.
  • Adherence to the diet was linked to a 6% reduction in cancer incidence.
  • Adherence to the diet was associated with a 13% reduction in incidence of Parkinson’s and Alzheimer’s diseases.

Takeaway

Eating more like people in Mediterranean countries can help you live longer and stay healthier.

Methodology

Meta-analysis of prospective cohort studies.

Potential Biases

Potential residual confounding due to differences in study designs and adjustments.

Limitations

Variability in dietary adherence scores and differences in adjustment for confounders among studies.

Participant Demographics

Included diverse populations from Mediterranean and non-Mediterranean countries.

Statistical Information

P-Value

<0.0001

Confidence Interval

0.89 to 0.94

Statistical Significance

p<0.0001

Digital Object Identifier (DOI)

10.1136/bmj.a1344

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