A study, which began in 1993, measured changes in cognitive function of subjects in an entire residential community of the elderly. The three-year study surveyed participants on their usual diet including their use of vitamin supplements. The subjects’ cognitive function was then measured through a series of performance exams including the testing of recollection of details from a lengthy story.

The study of more than 6,000 persons aged 65 and older showed a higher intake of vitamin E from foods and/or dietary supplements was linked with reduced memory loss and other cognitive decline.

Information provided is courtesy of and compiled by the Academy of Anti-aging Research staff, editors, and other reports.

This is an important study showing that in addition to therapeutic effects on Alzheimer’s or Parkinson's disease, vitamin E has a preventive effect. Most studies are conducted based on 300 I.U. of vitamin E a day. It is important to note that synthetic is not as well absorbed as natural vitamin E (d Tocopherol). There are also some recent studies to show that a combination of the alpha, beta, and gamma forms of d-Tocopherol is all-important. For anti-aging, a 400 IU to 800 IU dose is generally acceptable. Vitamin E has blood thinning effect so that people who are on blood thinners should be seek medical advice before embarking on high dose of vitamin E.