Scientists have little data about the causes of tumours in biliary tract and gallbladder, but there is the growing body of evidence that obesity and high blood sugar levels that are a hallmark of diabetes may increase the risk of these conditions.
Due to the fact that sodas and other beverages with the high content of sugar have been linked to high blood sugar and weight gain, researchers wanted to know whether these beverages might play a role in these types of cancer, said the lead study author, Susanna Larsson of the Karolinska Institute in Sweden.
“Soda consumption has been inconsistently associated with risk of biliary tract cancer (only one prior study) and other cancers in previous similar studies,” Larsson said. The current study “is the first study to show a strong link between consumption of sweetened beverages, such as soda, and risk of biliary tract cancer,” she added.
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