Tags: hot | tea | cancer | risk | smokers | drinkers | esophageal

Hot Tea Increases Cancer Risk for Smokers, Drinkers

Hot Tea Increases Cancer Risk for Smokers, Drinkers
(Copyright DPC)

Wednesday, 07 February 2018 09:08 AM EST

Drinking scalding hot tea is associated with an increased risk of esophageal tumors in people who also smoke and drink alcohol, two habits that already make many cancers more likely, a Chinese study suggests.

Among Chinese adults who drank at least one beer, cocktail or glass of wine daily, those who also consumed burning hot tea every day were 5 times more likely to develop esophageal cancer than people who drank tea at any temperature less than once a week, the study found.

For current smokers, drinking scalding hot tea every day was associated with roughly twice the risk of esophageal cancer as consuming tea less than weekly.

“Keeping away from both tobacco and excessive alcohol use is the most important means for esophageal cancer prevention,” said study coauthor Dr. Jun Lv of Peking University Health Science Center in China.

“Under this increased risk of esophageal cancer from smoking and drinking alcohol, if people like drinking very hot tea, the risk of developing cancer will be synergistically higher,” Lv said by email.

But by itself, drinking hot tea doesn’t increase cancer risk, Lv said.

China is among the countries with the highest incidence of esophageal cancer, researchers note in the Annals of Internal Medicine. Because tea drinkers in China, especially men, are more likely to drink alcohol and smoke, previous studies haven’t offered a clear picture or whether burning hot tea might be an independent risk factor for esophageal tumors.

While some prior research has suggested tea may help protect against tumors in the digestive tract, other studies have shown repeated consumption of very hot food or drink might damage the esophagus and help tumors take hold, the researchers note.

For the current study, researchers examined data on 456,155 adults ages 30 to 79 who completed questionnaires about their smoking, alcohol and tea habits.

At the start of the study, none of the participants had cancer. Researchers followed half of the participants for at least 9 years. During the study, 1,731 people developed esophageal tumors.

People who drank scalding hot tea, consumed excessive amounts of alcohol and also smoked had more than five times the risk of esophageal cancer than individuals who didn’t do any of these things.

The study wasn’t a controlled experiment designed to prove whether or how the temperature of tea might impact the risk of esophageal tumors.

Another limitation is that study participants reported on their own smoking and drinking habits, and their reports could be unreliable. Researchers also only had data on tea consumption from one point in time, when people joined the study, making it impossible to know how changing habits might have impacted the cancer risk.

“People probably do not estimate their tea temperature perfectly, and this is one of the main limitations of the study,” said Neal Freedman, author of an accompanying editorial and a researcher with the Division of Cancer Epidemiology and Genetics at the National Cancer Institute in Bethesda, Maryland.

“Drinking tea at a lower temperature should not be considered as a replacement for smoking cessation and limiting alcohol intake,” Freedman said by email. “Nevertheless, accumulating data suggest that drinking very hot tea may also increase the risk of esophageal cancer, and it may be prudent for people who drink very hot beverages to wait until it cools down a bit before drinking, whether or not they also smoke cigarettes or drink alcohol.”

© 2024 Thomson/Reuters. All rights reserved.


Health-News
Drinking scalding hot tea is associated with an increased risk of esophageal tumors in people who also smoke and drink alcohol, two habits that already make many cancers more likely, a Chinese study suggests. Among Chinese adults who drank at least one beer, cocktail or...
hot, tea, cancer, risk, smokers, drinkers, esophageal
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2018-08-07
Wednesday, 07 February 2018 09:08 AM
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