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Nutrición Hospitalaria

versión On-line ISSN 1699-5198versión impresa ISSN 0212-1611

Resumen

VARGAS, María Rubi et al. Consumption of omega-3 fatty acids and depressive symptoms in college students from sonora, Mexico. Nutr. Hosp. [online]. 2015, vol.32, n.4, pp.1744-1751. ISSN 1699-5198.  http://dx.doi.org/10.3305/nh.2015.32.4.9567.

Introduction: recent studies suggest that low serum levels of polyunsaturated fatty acids omega-3 are associated with a higher prevalence of depression. Objective: to evaluate whether low consumption of Omega-3 fatty acids is associated with a higher prevalence of depressive symptoms in a sample of college students from the Northwest of Mexico, and to assess the potential effect modification by alcohol consumption. Methods: we conducted a cross-sectional study in a sample of 706 college students (males and females) aged 18 to 24. The presence of depressive symptoms was identified with the Depression Scale of the Center for Epidemiologic Studies (CES-D), using a cutoff point of ≥24. The intake of omega-3 was obtained by a food frequency questionnaire validated for Mexican population. We estimated the weekly intake of alpha-linolenic fatty acid (ALA), eicosapentaenoic (EPA) and docosahexaenoic (DHA) derived from the diet in mg/g of food. The association between omega-3 from diet and the presence of depressive symptoms was assessed using logistic regression models adjusted for potential confounders. Results: 67% of the participants were females; 16.6% were classified as having depressive symptoms. A low intake of ALA and EPA + DHA was not associated with depressive symptoms before and after adjusting for confounders. Median levels of ALA (from nuts only) were significantly lower among those with depressive symptoms compared to those without these symptoms. Conclusions: in this population of Mexican college students, a low intake of omega-3 fatty acids was not associated with depressive symptoms. The potential association between nut consumption and depressive symptoms deserve more attention.

Palabras clave : Mexican college students; Omega-3 fatty acids consumption; Depressive symptoms.

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