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A Mediterranean diet — which includes high intake of fiber and monounsaturated fatty acids derived from vegetable fat (especially olive oil), low intake of saturated fatty acids, and moderate alcohol intake — lowers risk for nonfatal myocardial infarction and for death due to coronary heart disease. Limited evidence suggests that this diet also can prevent type 2 diabetes. To further investigate this issue, Spanish researchers conducted a prospective cohort study that involved more than 13,000 university graduates without diabetes at baseline. Dietary habits were tracked using validated food-frequency questionnaires; participants were classified as having low, moderate, or high adherence to a Mediterranean diet.
Thirty-three participants dev…