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Title: Effect of a Mediterranean diet intervention on dietary glycemicload and dietary glycemic index: The PREDIMED Study
Authors: Rodríguez-Rejon, Ana Isabel
Castro-Quesada, Itandehui
Ruano Rodriguez, Cristina 
Ruiz-López, María Dolores
Sánchez-Villegas, Almudena 
Toledo, Estefanía
Artacho, Reyes
Estruch, Ramón
Salas-Salvadó, Jordi
Covas, María Isabel
Corella, Dolores
Gómez-Gracia, Enrique
Lapetra, José
Pintó, Xavier
Arós, Fernando
Fiol, Miquel
Lamuela-Raventós, Rosa Maria
Ruiz-Gutierrez, Valentina
Schröder, Helmut
Ros, Emilio
Martínez-González, Miguel Ángel
Serra-Majem, Lluis 
UNESCO Clasification: 3206 Ciencias de la nutrición
Keywords: Mediterranean diet
Issue Date: 2014
Project: Efecto de la Dieta Mediterránea Sobre la Prevención Primaria de la Enfermedad Cardiovascular.Predimed. 
Journal: Journal of Nutrition and Metabolism 
Abstract: Objective. To compare the one year effect of two dietary interventions with MeDiet on GL and GI in the PREDIMED trial. Methods. Participants were older subjects at high risk for cardiovascular disease. This analysis included 2866 nondiabetic subjects. Diet was assessed with a validated 137-item food frequency questionnaire (FFQ). The GI of each FFQ item was assigned by a 5-step methodology using the International Tables of GI and GL Values. Generalized linear models were fitted to assess the relationship between the intervention group and dietary GL and GI at one year of follow-up, using control group as reference. Results. Multivariate-adjusted models showed an inverse association between GL and MeDiet vertical bar extra virgin olive oil (EVOO) group:beta = -8.52 (95% CI: -10.83 to -6.20) and MeDiet + Nuts group:beta = -10.34 (95% CI: -12.69 to -8.00), when comparing with control group. Regarding GI,beta = -0.93 (95% CI: -1.38 to -0.49) for MeDiet + EVOO,beta. = -1.06 (95% CI: -1.51 to -0.62) for MeDiet + Nuts when comparing with control group. Conclusion. Dietary intervention with MeDiet supplemented with EVOO or nuts lowers dietary GL and GI.
ISSN: 2090-0724
DOI: 10.1155/2014/985373
Source: Journal of Nutrition and Metabolism [ISSN 2090-0724], v. 2014, Article ID 985373, (Enero 2014)
Rights: by-nc-nd
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