A study in the journal JAMA found that patients with mild Alzheimer's disease and levels of vitamin E were given at high dose levels of memory decline more slowly than those given a placebo or dummy pill .
They are able to carry out the tasks of daily periods longer and require less assistance from the guards , said a researcher in the United States .
But experts who are members of the Alzheimer's Society said the doses used are very high and may not be safe .
In the study, 613 people with mild to moderate Alzheimer's receiving daily doses of vitamin E. The patient is undergoing therapy dementia drugs known as memantine , which is a combination of vitamin E and memantine , and others are given a placebo .
controversy
Changes in their ability to carry out everyday tasks - such as washing or changing clothes - measured average for more than two years .
" These findings suggest that alpha- tocopherol is beneficial in mild to moderate Alzheimer's by slowing functional decline and reduce the burden on caregivers , " said a team led by Dr. Maurice Dysken of the Minneapolis VA Health Care System .
Commenting on the study , Dr Doug Brown , director of research and development at the Alzheimer's Society , said the treatments that can help people with dementia carry out everyday tasks is the key to enable these people to live in a good condition as long as possible .
But he said more research is needed to see whether vitamin E actually have benefits for people with dementia , and is it safe taking high doses every day .
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