title: Adherence to the DASH Diet is inversely associated with incidence of type 2 diabetes: the insulin resistance atherosclerosis study.
abstract: OBJECTIVE The Dietary Approaches to Stop Hypertension (DASH) diet has been widely promoted; however, little is known about its impact on type 2 diabetes. RESEARCH DESIGN AND METHODS We evaluated the association of the DASH diet with incidence of type 2 diabetes among 862 participants of the Insulin Resistance Atherosclerosis Study (IRAS) who completed a 1-year food frequency questionnaire at baseline. Type 2 diabetes odds ratios (ORs) were estimated at tertiles of the DASH score. RESULTS An inverse association was observed in whites (tertile 2 vs. tertile 1, OR 0.66 [95% CI 0.29-1.48]) that became significant for the most extreme contrast (tertile 3 vs. tertile 1, 0.31 [0.13-0.75]), with adjustment for covariates. No association was observed in blacks or Hispanics (tertile 2 vs. tertile 1, 1.16 [0.61-2.18 ]; tertile 3 vs. tertile 1, 1.34 [0.70-2.58 ]). CONCLUSIONS Adherence to the DASH dietary pattern, which is rich in vegetables, fruit, and low-fat dairy products, may have the potential to prevent type 2 diabetes.
authors.affiliation: Department of Epidemiology and Biostatistics and Center for Research in Nutrition and Health Disparities, Arnold School of Public Health, University of South Carolina, Columbia, South Carolina, USA. liese@sc.edu
authors.forename: Angela D
authors.initials: AD
authors.lastname: Liese
authors.forename: Michele
authors.initials: M
authors.lastname: Nichols
authors.forename: Xuezheng
authors.initials: X
authors.lastname: Sun
authors.forename: Ralph B
authors.initials: RB
authors.lastname: D'Agostino
authors.forename: Steven M
authors.initials: SM
authors.lastname: Haffner
mesh_terms: D000328:Adult; D000368:Aged; D050197:Atherosclerosis / Q000517:prevention & control; D003611:Dairy Products; D003924:Diabetes Mellitus, Type 2 / Q000178:diet therapy* / Q000517:prevention & control / Q000523:psychology; D004032:Diet; D018752:Diet, Fat-Restricted; D002149:Energy Intake; D005006:Ethnicity; D005247:Feeding Behavior; D005638:Fruit; D006801:Humans; D006973:Hypertension / Q000517:prevention & control*; D008460:Meat; D008875:Middle Aged; D016017:Odds Ratio; D010349:Patient Compliance; D044469:Racial Groups; D011795:Surveys and Questionnaires; D014675:Vegetables