Researchers compared vitamin E levels in Alzheimer's, mild cognitive impairment, and cognitively normal subjects.
Individuals with cognitive impairment or Alzheimer's had lower blood levels of vitamin E.
The study concluded that both disorders were associated with increased vitamin E damage. Low plasma tocopherols and tocotrienols levels are associated with increased odds of MCI and AD.
Neurobiol Aging. 2012 Oct;33(10):2282-90. Epub 2011 Dec 20.