Harvard Health Letter

Overeating may reduce brain function

High caloric intake could raise the risk of memory loss.

Eating too many calories may do more than just expand your midsection. A recent study suggests that high caloric intake over time may actually raise your odds of developing memory loss, or mild cognitive impairment (MCI), later in life.

The study, presented earlier this year at the American Academy of Neurology's annual meeting, found that consuming between 2,100 and 6,000 calories per day may double the risk of MCI among people age 70 and older. The study involved more than 1,200 men and women, ages 70 to 89, who did not show signs of dementia at the start of the study.

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