Carbonated soft drink consumption was previously suggested to be linked to the 350 percent increase of adenocarcinoma of the esophagus since the mid-1970s, but researchers at Yale School of Medicine report that the link is unfounded and that there may, in fact, be a decreased risk of this cancer for diet soda drinkers.
The researchers warn that diet soft drink consumers might differ from other groups because they may engage in other unmeasured healthy behaviors. The study is published in the January 4 issue of Journal of the National Cancer Institute (JNCI).
It was hypothesized by others that carbonated soft drinks might have contributed to the development of adenocarcinoma of the esophagus. The theory was based on factors including similar time trends; acidic carbonated soft drinks causing gastric distension that might affect the lower esophagus; and association of carbonated soft drinks with heartburn at night, a known risk factor for esophageal adenocarcinoma.
Karen N. Peart | EurekAlert!
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