Consumption of polyunsaturated fatty acids, fish, and nuts and risk of inflammatory disease mortality

Bamini Gopinath, Anette E. Buyken, Victoria M. Flood, Marianne Empson, Elena Rochtchina, Paul Mitchell*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

43 Citations (Scopus)

Abstract

Background: n–3 (omega-3) Polyunsaturated fatty acids (PUFAs), fish, and nuts can regulate inflammatory processes and responses.

Objective: We investigated whether dietary intakes of PUFAs [n−3, n–6 (omega-6), and α-linolenic acid], fish, and nuts were associated with 15-y mortality attributed to noncardiovascular, noncancer inflammatory diseases.

Design: The analyses involved 2514 participants aged ≥49 y at baseline. Dietary data were collected by using a semiquantitative food-frequency questionnaire, and PUFA, fish, and nut intakes were calculated. Inflammatory disease mortality was confirmed from the Australian National Death Index.

Results: Over 15 y, 214 subjects died of inflammatory diseases. Women in the highest tertiles of total n−3 PUFA intake, compared with those in the lowest tertile of intake at baseline, had a 44% reduced risk of inflammatory disease mortality (P for trend = 0.03). This association was not observed in men. In both men and women, each 1-SD increase in energy-adjusted intake of α-linolenic acid was inversely associated with inflammatory mortality (hazard ratio: 0.83; 95% CI: 0.71, 0.98). Subjects in the second and third tertiles of nut consumption had a 51% and 32% reduced risk of inflammatory disease mortality, respectively, compared with those in the first tertile (reference). Dietary intakes of long-chain n−3 and n−6 PUFAs and fish were not associated with inflammatory disease mortality.

Conclusions: We report on a novel link between dietary intake of total n−3 PUFA and risk of inflammatory disease mortality in older women. Furthermore, our data indicate a protective role of nuts, but not fish, against inflammatory disease mortality.
Original languageEnglish
Pages (from-to)1073-1079
Number of pages7
JournalAmerican Journal of Clinical Nutrition
Volume93
Issue number5
DOIs
Publication statusPublished - May 2011
Externally publishedYes

Fingerprint Dive into the research topics of 'Consumption of polyunsaturated fatty acids, fish, and nuts and risk of inflammatory disease mortality'. Together they form a unique fingerprint.

Cite this