Four cups of tea daily to control type 2 diabetes


Drinking four cups of black, green or a type of traditional Chinese tea (oolong) a day may reduce the risk of developing type 2 diabetes, according to new research being presented at the U.S. annual meeting. European association for the study of diabetes This week will be held in Stockholm.

The association between tea consumption and type 2 diabetes risk has been studied before, but results have been inconsistent, he says. Xiying Li, Research first author and graduate student Wuhan University of Science and Technology (China).

“Our study has shown that the association between tea consumption and type 2 diabetes depends on the amount of tea consumed. Only an adequate intake of tea may show a clinical effect,” Lee told CNN. . “Based on our findings, I would recommend the public to consume more tea in their daily lives, if appropriate.”

The authors studied 5,199 adults with a history of type 2 diabetes who took part in China Health and Nutrition Survey (CHNS).

The CHNS is a prospective study examining the economy, social issues and health of residents of nine Chinese provinces. He was recruited in 1997 and was followed until 2009.

At the start of the study, participants provided information about lifestyle factors, such as eating and drinking habits, exercise, smoking, and alcohol consumption.

“Based on our findings, I would recommend the public to consume more tea in their daily lives”

Initially, the researchers found that tea drinkers and non-drinkers in their study had a similar risk of developing type 2 diabetes.

But when researchers decided to see if the amount consumed made any difference between tea drinkers, a systematic review of 19 cohort studies involving more than one million adults from eight countries, the results were Were different: More cups of green, oolong, or black tea that participants drank per day had a lower risk of developing type 2 diabetes.

The measures adopted in these studies were whether participants ate less than one cup a day, one to three cups a day, or four or more).

The authors caution that their research does not prove that drinking tea reduces the risk of type 2 diabetes, but does suggest that tea consumption contributes. They also noted that they relied on participants’ own assessments of their tea consumption and could not rule out the possibility that unmeasured physical and lifestyle factors may have influenced the results.

Experts not involved in the research agreed with the authors’ acknowledgment of the current research’s shortcomings.

“It may be that people who drink more tea, avoid or drink less of the same or more harmful sugary drinks, or have other health behaviors that are associated with a lower risk of type 2 diabetes,” says Professor of Metabolic Medicine, Naveed Sattar. causes.” University of GlasgowThis is a statement.

“The results should be taken with a large pinch of salt (or a cup of tea),” says the U.S. of Kevin McConway says.UK Open University, “The problem with the conclusions of a meta-analysis is that the devil is always in the details, and we don’t have those. What studies were included? What was the quality of it? Which people, from which countries were they studied?

Lee says more research is needed to determine how green, black or oolong tea — and the amount consumed — might affect type 2 diabetes risk.

‘Some components of tea, such as’ polyphenolsThey can lower blood glucose concentrations by inhibiting the activity of α-glucosidase and/or inhibiting the activity of other enzymes, but a sufficient amount of the bioactive substance is needed for this to be effective,” says Lee.

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