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WEDNESDAY, Dec. 2 (HealthDay News) -- Women who drink five or more servings of sugar-sweetened cola per week before they conceive increase their risk of developing diabetes during pregnancy, a new study indicates.
"Previous studies have shown an association with other chronic metabolic problems," said study author Dr. Liwei Chen, an assistant professor of epidemiology at Louisiana State University Health Sciences Center, in New Orleans. "This is the first to show an increased risk among pregnant women."
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Gestational diabetes, known as glucose intolerance during pregnancy, is one of the most common complications of pregnancy. It increases the chances of lifelong diabetes for the woman and also can have permanent effects on the unborn child, Chen said. The report appears in the December issue of Diabetes Care.
"Other studies suggest that babies born to women who are diabetic during pregnancy have higher weight at birth and also higher rates of obesity and diabetes early in life," she added.
Chen, working with researchers at the Harvard School of Public Health and the U.S. National Institute of Child Health and Human Development, studied 10 years of medical records on a group of 13,475 women from the Nurses' Health Study II. After adjusting for known risk factors for gestational diabetes, such as age, family history and smoking, the researchers found that women who had more than five servings per week of sugar-sweetened cola beverages had a 22 percent higher risk of gestational diabetes than women who had less than one serving per month.
No such association was found for consumption of other sugar-sweetened beverages or artificially sweetened drinks.
It's not clear why only cola drinks are associated with the increased risk, Chen said. One explanation could be "the tremendous popularity of cola in the United States," she said.
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