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Eur J Nutr. 2016 Jun;55(4):1707-16. doi: 10.1007/s00394-015-0989-8. Epub 2016 Jan 27.

Intake of fish and long-chain omega-3 polyunsaturated fatty acids and incidence of metabolic syndrome among American young adults: a 25-year follow-up study.

Author information

1
Department of Epidemiology and Biostatistics, School of Public Health-Bloomington, Indiana University, Bloomington, IN, USA.
2
Department of Medicine, Graduate School, Dongguk University-Seoul, Seoul, Republic of Korea.
3
Kaiser Permanente Division of Research, Oakland, CA, USA.
4
Department of Preventive Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA.
5
Department of Epidemiology, School of Public Health, University of Minnesota, Minneapolis, MN, USA.
6
Institute for Minority Health Research, Department of Medicine, University of Illinois at Chicago, Chicago, IL, USA.
7
New York Academy of Medicine, New York, NY, USA.
8
Department of Epidemiology and Biostatistics, School of Public Health-Bloomington, Indiana University, Bloomington, IN, USA. kahe@indiana.edu.

Abstract

PURPOSE:

Studies suggest that long-chain ω-3 polyunsaturated fatty acid (LCω3PUFA) intake and its primary food source-fish-may have beneficial effects on the individual components of metabolic syndrome (MetS). We examined the longitudinal association between fish or LCω3PUFA intake and MetS incidence.

METHODS:

We prospectively followed 4356 American young adults, free from MetS and diabetes at baseline, for incident MetS and its components in relation to fish and LCω3PUFA intake. MetS was defined by the National Cholesterol Education Program/Adult Treatment Panel III criteria. Cox proportional hazards model was used for analyses, controlling for socio-demographic, behavioral, and dietary factors.

RESULTS:

During the 25-year follow-up, a total of 1069 incident cases of MetS were identified. LCω3PUFA intake was inversely associated with the incidence of MetS in a dose-response manner. The multivariable adjusted hazards ratio (HR) [95 % confidence interval (CI)] of incident MetS was 0.54 (95 % CI 0.44, 0.67; P for linear trend < 0.01) as compared the highest to the lowest quintile of LCω3PUFA intake. A threshold inverse association was found between non-fried fish consumption and the incidence of MetS. The multivariable adjusted HRs (95 % CIs) from the lowest to the highest quintile were 1.00, 0.70 (0.51, 0.95), 0.68 (0.52, 0.91), 0.67 (0.53, 0.86), and 0.71 (0.56, 0.89) (P for linear trend = 0.49). The observed inverse associations were independent of the status of baseline individual components of MetS.

CONCLUSIONS:

Our findings suggest that intakes of LCω3PUFAs and non-fried fish in young adulthood are inversely associated with the incidence of MetS later in life.

KEYWORDS:

Fish consumption; Longitudinal studies; Metabolic syndrome; Omega-3 fatty acids

PMID:
26816031
PMCID:
PMC4875783
DOI:
10.1007/s00394-015-0989-8
[Indexed for MEDLINE]
Free PMC Article

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