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Vitamin E from foods and supplements may help slow decline in mental functioning among older people, according to the results of a study conducted on the elderly. The researchers theorize that vitamin E counteracts the damage done to brain cells by free radicals--by-products of normal body processes that can damage tissue.
According to the findings, published in the July 2002 issue of The Archives of Neurology, 61 percent of subjects showed some decline in mental function over a three-year period, while 39 percent showed no decline or even improved. The group reporting the highest intake of vitamin E had a slower decline in mental function than those whose vitamin E intake was lowest.
The protective effect of supplements on mental skill, however, was seen only in subjects who received little vitamin E from their diets. Those who already received sufficient amounts of the vitamin ...