Higher alpha-linolenic acid intake was significantly associated with a lower prevalence of insulin resistance in middle aged Japanese men and women.
Higher dietary intake of alpha-linolenic acid is associated with lower insulin resistance in middle-aged Japanese.
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Abstract
OBJECTIVE: To investigate the associations between dietary intake of n-3 polyunsaturated fatty acids (plant-derived alpha-linolenic acid: ALA, and marine-derived eicosapentaenoic and docosahexaenoic acid: EPA+DHA) and insulin resistance (IR) in a lean population with high n-3 PUFA intake. METHOD: We cross-sectionally studied 3383 Japanese local government workers aged 35-66 in 2002. IR was defined as the highest quartile of homeostasis model assessment, and nutrient intake was estimated from a diet history questionnaire. The odds ratios (ORs) of IR taking the lowest quartile of ALA or EPA+DHA intake as the reference were calculated by logistic regression analysis. RESULTS: Mean age, body mass index (BMI), and dietary ALA, and median of dietary EPA+DHA were 47.9 years, 22.9 kg/m(2), and 1.90 g/day (0.88%E) and 0.77 g/day (0.36%E), respectively. The ORs of IR decreased across the quartiles of ALA intake (multivariate-adjusted OR for Q4 versus Q1=0.74, P for trend=0.01) and the association was observed only in subjects with a BMI of
Affiliation
Takashi Muramatsu
External References
- PubMed ID:
- 20211645
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