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Diet, nutrient levels linked to cognitive ability, brain shrinkage
Date:12/28/2011

cognitive outcomes and brain size measurements were associated with two dietary patterns high levels of marine fatty acids, and high levels of vitamins B, C, D and E.

  • Consistently worse cognitive performance was associated with a higher intake of the type of trans-fats found in baked and fried foods, margarine, fast food and other less-healthy dietary choices.

  • The range of demographic and lifestyle habits examined included age, gender, education, smoking, drinking, blood pressure, body mass index and many others.

  • The use of blood analysis helped to eliminate issues such as people's flawed recollection of what they ate, and personal variability in nutrients absorbed.

  • Much of the variation in mental performance depended on factors such as age or education, but nutrient status accounted for 17 percent of thinking and memory scores and 37 percent of the variation in brain size.

  • Cognitive changes related to different diets may be due both to impacts on brain size and cardiovascular function.

    The epidemiology of Alzheimer's disease has suggested a role for nutrition, the researchers said in their study, but previous research using conventional analysis, and looking in isolation at single nutrients or small groups, have been disappointing. The study of 30 different blood nutrient levels done in this research reflects a wider range of nutrients and adds specificity to the findings.

    The study needs to be confirmed with further research and other variables tested, the scientists said.


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  • Contact: Maret Traber
    maret.traber@oregonstate.edu
    541-737-7977
    Oregon State University
    Source:Eurekalert

    Page: 1 2

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