Registered dietitian Dana Angelo White said she wasn't shocked by the findings, because this isn't the first study to report a connection between fried foods and poor health outcomes.
"Eating small amounts of something fried isn't the end of the world, but the more you eat of fried foods, the worse it is for you," explained White, who wasn't involved with the study. She's an associate professor at Quinnipiac College in Hamden, Conn.
Frying food is a common method of cooking in many countries, the study said. Yet previous research has linked fried foods to chronic illnesses, such as type 2 diabetes, heart failure, obesity, and high blood pressure. A study released in January reported that women who ate more than one serving of fried food a week increased their risk of heart disease and early death.
The current study, led by Jacqueline Honerlaw, of the U.S. Department of Veterans Affairs and the Massachusetts Veterans Epidemiology Research and Information Center, was large, including nearly 155,000 military veterans. They were mostly men (90%) and their average age was 64.
Honerlaw and her colleagues asked study participants about the foods they ate, including fried foods. Just under half said they ate fried foods less than once a week. About a third had fried foods one to three times a week. Only a small group -- about 5% -- said they ate fried foods daily.
During the three-year study follow-up, nearly 6,800 had heart disease or stroke.
Dr. Eugenia Gianos is a director of Women's Heart Health at Lenox Hill Hospital in New York City. She said the association between fried foods and heart disease and stroke "was greatest in those with the greatest consumption of fried foods, even after accounting for other lifestyle factors and dietary patterns."
Gianos, who had no part in the study, said the findings were limited because only a small number of women were included. But White pointed out that nutrition information generally doesn't differ between males and females.
It's also important to note that while the study found a link between fried foods and the risk of heart disease and stroke, it didn't prove a cause-and-effect link.
It's not clear from this study what types of foods people were eating fried, and that can make a difference. But, generally, fried foods are unhealthy because frying adds a lot of extra fat and calories.
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