Whole grains linked to longer life, new study suggests

00:26

Scientists at Harvard University say their research suggests people who eat three or more servings of whole grains a day reduce the risk of premature death by 20 percent. Whole grains also lowered the risk for cancer and cardiovascular disease. But not all grains are alike. Whole grain foods include whole-wheat flour, oatmeal, brown rice and whole cornmeal. (Run time: :26)