Dietary omega-3 fatty acid and fish intake in the primary prevention of age-related macular degeneration: a systematic review and meta-analysis.

Published

Journal Article (Review)

OBJECTIVE: To systematically review the evidence on dietary omega-3 fatty acid and fish intake in the primary prevention of age-related macular degeneration (AMD). METHODS: Seven databases were systematically searched with no limits on publication year or language using standardized criteria. Randomized controlled trials and prospective cohort, case-control, and cross-sectional studies were included. Of 2754 abstracts identified, 3 prospective cohort, 3 case-control, and 3 cross-sectional studies met the criteria. Measures of associations were pooled quantitatively using meta-analytic methods. RESULTS: Nine studies provided data on a total sample of 88 974 people, including 3203 AMD cases. A high dietary intake of omega-3 fatty acids was associated with a 38% reduction in the risk of late AMD (pooled odds ratio [OR], 0.62; 95% confidence interval [CI], 0.48-0.82). Fish intake at least twice a week was associated with a reduced risk of both early AMD (pooled OR, 0.76; 95% CI, 0.64-0.90) and late AMD (pooled OR, 0.67; 95% CI, 0.53-0.85). CONCLUSIONS: Although this meta-analysis suggests that consumption of fish and foods rich in omega-3 fatty acids may be associated with a lower risk of AMD, there is insufficient evidence from the current literature, with few prospective studies and no randomized clinical trials, to support their routine consumption for AMD prevention.

Full Text

Duke Authors

Cited Authors

  • Chong, EW-T; Kreis, AJ; Wong, TY; Simpson, JA; Guymer, RH

Published Date

  • June 2008

Published In

Volume / Issue

  • 126 / 6

Start / End Page

  • 826 - 833

PubMed ID

  • 18541848

Pubmed Central ID

  • 18541848

Electronic International Standard Serial Number (EISSN)

  • 1538-3601

Digital Object Identifier (DOI)

  • 10.1001/archopht.126.6.826

Language

  • eng

Conference Location

  • United States