"Vegetables generally contain more vitamin E than fruits. Vegetables also are often eaten with healthy fats such as salad oils, which help the body absorb vitamin E," said lead author Martha Clare Morris, a researcher at Chicago's Rush University Medical Center. 　　The study was published in this week's issue of the journal Neurology. 　　The research involved 1,946 people aged 65 and older who filled out questionnaires about their eating habits. They also had mental function tests three times over about six years. 　　The tests included measures of short-term and delayed memory, which asked these older people to recall elements of a story that had just been read to them. The participants also were asked to recognize symbols and numbers on different cards.