Researchers looked into how different tea varieties, including black, oolong, and green tea, affected diabetes risk.
They discovered that drinking 1-3 cups of tea per day marginally reduced the incidence of type 2 diabetes but that four or more cups per day was associated with a 17% lower risk.
To confirm the findings, additional research is nonetheless required.
The World Health Organization estimates that 422 million people worldwide have diabetes. Type 2 diabetes, the most prevalent form, develops when the body cannot produce enough insulin or becomes resistant to it, making it difficult for the body to readily absorb insulin from the blood.
Consuming tea and coffee has been related in certain studies to a decrease in all-cause mortality. According to another reliable research Source, drinking green tea daily may reduce your risk of developing type 2 diabetes and dying for any reason.
More research on the effects of tea and its dosage on the risk of diabetes in significant populations may help develop diabetes prevention measures.
Recently, scientists looked at 19 cohort studies from eight nations to see how drinking black, green, and oolong tea affected type 2 diabetes risk.
They discovered that consuming four or more cups of tea per day may lower the risk of diabetes.
Other foods high in polyphenols have demonstrated similar effects, according to Dr. Kashif M. Munir, associate professor of medicine at the University of Maryland Center for Diabetes and Endocrinology, who was not involved in the study. “Drinking tea does not seem to be harmful and may confer a small benefit in reducing diabetes risk,” he said.
At the annual meeting of the European Association for the Study of Diabetes in Stockholm, Sweden, the meta-analysis was presented.
How many tea cups?
Data from 5,199 adult participants in the China Health and Nutrition Survey were evaluated for the study by the researchers. Participants were observed from 1997 to 2009; they did not have diabetes at the outset of the trial. They filled out questionnaires to learn how much tea they drank.
Together, 45.76% of the individuals reported drinking tea; throughout the trial, 10.04% of the cohort had type 2 diabetes.
The researchers discovered that the risk of type 2 diabetes was comparable between tea drinkers and non-drinkers after correcting for variables like age, sex, and lifestyle choices.
The next step was a systematic evaluation of 19 cohort studies with 1,076,311 participants that looked at the association between the risk of type 2 diabetes and tea intake.
They investigated the connection between type 2 diabetes risk and intakes of several tea varieties, such as green tea, oolong tea, and black tea, as well as the frequency of tea consumption, gender, and geographic location.
In comparison to non-drinkers, the study found that those who drank 1-3 cups of tea daily had a 4% decreased risk of type 2 diabetes.