Eat less, gain memory?

Older people who consumed more than 2,143 calories a day had more than double the risk of a type of memory loss compared to those who ate fewer than 1,500 calories a day, according to a study being released by the American Academy of Neurology. Mild cognitive impairment is the condition between normal forgetfulness due to aging and early Alzheimer's disease.

Researchers divided the participants into three equal groups. The first group consumed 600 to 1,526 calories daily; a second between 1,526 calories and 2,142 calories and a third, more than 2,143. The odds of having MCI more than doubled in the highest calorie group compared to the lowest calorie group.