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Fried Food and No Heart Disease?

Eating Foods Fried in Healthier Oil Not Linked to Heart Disease, Researchers Find
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WebMD Health News
Reviewed by Louise Chang, MD

Jan. 24, 2012 -- Eating foods fried in healthier oils such as olive or sunflower is not linked to heart disease or premature death, Spanish researchers have found.

They followed more than 40,000 adults for 11 years, tracking fried food intake and heart disease.

However, this tentative morsel of good news for fried food fans comes with a heaping side dish of caution, especially when it comes to typical U.S. fried foods and diets.

"We should emphasize that our results were obtained within the context of a healthy diet, the Mediterranean one, and may not be replicated with other types of diets," researcher Pilar Guallar-Castillon, MD, PhD, MPH, associate professor of preventive medicine at Universidad Autonoma de Madrid, tells WebMD.

Another big difference between Spanish diners and U.S. diners may also play a role. "In our study, most meals were prepared and consumed at home," Guallar-Castillon says. It's difficult to know which type of oil you are eating, she says, when you are dining out.

The study is published online in BMJ.

Fried Food and Heart Disease: Study Details

Eating large amounts of fried food has been linked with heart disease risk factors such as high blood pressure, lowered ''good'' cholesterol, and obesity, the researchers write.

However, research on fried food and heart disease itself has produced conflicting results.

The researchers evaluated 40,757 adults, ages 29 to 69 and free of heart disease when they enrolled in the study in 1992 through 1996. The researchers followed them until 2004.

The researchers interviewed the men and women at the start of the study about their usual eating habits. They asked them what they'd eaten in a typical week during the previous year.

The questionnaire included up to 662 different foods, including 212 that were fried.

Frying methods included deep-fried, pan, battered, crumbed, or sautéed. Most used heart-healthy olive oil.

The researchers separated participants into four groups, depending on their intake of fried foods. The lowest group ate about 1.6 ounces of fried foods a day. The group with the highest intake had about 8.8 ounces a day. On average, the men and women ate a little less than 5 ounces a day of fried foods and used about a half-ounce of oil to fry it.

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