The findings in Circulation, a journal of the American Heart Association, were based on a six-year study of more than 17,000 people in the United States.
Researchers found that people who regularly ate what was described as a Southern style diet -- fried foods, eggs, processed meats like bacon and ham, and sugary drinks -- faced the highest risk of a heart attack or heart-related death during the next six years.
"Try cutting down the number of times you eat fried foods or processed meats from every day to three days a week as a start, and try substituting baked or grilled chicken or vegetable-based foods."
The study included both white and African-American men and women aged 45 or older, who did not have heart disease when they began the study.
"Every six months, the participants were interviewed via telephone about their general health status and hospitalizations for nearly six years," said the study.