MOST POPULAR: Video, stories and more
SIGN-UP: Get breaking news sent to you
Researchers found the biggest benefit comes from foods rich in glutamic acid which includes beans, whole grains and soy.
Eating just five percent more of those foods could lead to a small decrease in blood pressure, but the American Heart Association says it's enough to prevent more than 25,000 deaths a year from stroke or heart disease.
The new study is in the journal "Circulation."
Today's latest headlines | ABC7 News on your phone
Follow us on Twitter | Fan us on Facebook | Get our free widget