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The Mediterranean diet received yet another endorsement for its disease-prevention qualities—this time for reducing the incidence of type 2 diabetes in a subgroup of a multicenter trial in Spain in which participants were randomly assigned to a Mediterranean diet supplemented with extra virgin olive oil (EVOO), a Mediterranean diet supplemented with mixed nuts, or a control diet that limited all types of fat (Salas-Salvadó J et al. Ann Intern Med. 2014;160:1-10).
The analysis involved 3451 people (aged 55-80 years) participating in the PREDIMED (Prevención con Dieta Mediterránea) cardiovascular prevention trial. Participants received personalized advice from dietitians on which foods and quantities to eat but were not asked to increase their physical activity or restrict calories.
Slomski A. Mediterranean Diet May Reduce Diabetes Risk in Older People. JAMA. 2014;311(8):790. doi:10.1001/jama.2014.1001