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Drinking Very Hot Tea Linked With Increased Risk of Esophageal Cancer


Previous studies have found an association between drinking hot tea and increased risk of esophageal cancer, but none have looked at the association using objectively measured tea drinking temperature. A recent study did just that and found that drinking tea that is hotter than 140ºF increases the risk of esophageal cancer by 90%.





For this study, the researchers used data from the Golestan Cohort Study, which included 50,045 participants between the ages of 40 and 75. They measured tea drinking temperature and collected data on several other eat drinking habits. The participants were followed for an average of 10.1 years.





During the follow-up period, 317 new cases of esophageal cancer were reported. The researchers found that drinking tea above the temperature of 140º F, having a preference for drinking very hot tea, and a shorter time between pouring tea and drinking it were all associated with a higher risk of esophageal cancer. They also found that those who drank more than 3 cups of tea per day at a temperature of 140ºF or higher had a 90% higher risk of esophageal cancer compared to those who drank less than 3 cups of tea per day at a temperature lower than 140º F.





The study was conducted by researchers from the Tehran University of Medical Sciences. It was published on March 20, 2019 in the International Journal of Cancer.


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