CHICAGO — Older people who eat fish at least once a week may cut their risk of Alzheimer's disease by more than half, a study published Monday suggests.
The study adds to the evidence that diet may affect a person's chances of developing the mind-robbing disease that affects an estimated 4 million Americans.
Researchers found that people age 65 and older who had fish once a week had a 60% lower risk of Alzheimer's than those who never or rarely ate fish. The meals included tuna sandwiches, fish sticks and shellfish; the amounts eaten were not specified.
"This is very promising, but it's very early and really we need to have a lot more studies," said lead researcher Dr. Martha Clare Morris of Chicago's Rush-Presbyterian-St. Luke's Medical Center.