People who drink black tea every day have a 53% lower risk of developing prediabetes and a 47% lower risk of developing type 2 diabetes, according to new research presented at the European Association for the Study of Diabetes Annual Meeting.
Research shows that drinking black tea regularly helps prevent diabetes - Illustration photo
People who drink black tea every day have a 53% lower risk of developing prediabetes and a 47% lower risk of developing type 2 diabetes, according to research presented at the European Association for the Study of Diabetes Annual Meeting.
Prediabetes is having high blood sugar, type 2 diabetes is insulin resistance when the body has problems processing sugar for fuel.
"This study shows that in a general Chinese population, regular tea consumption, especially black tea, is associated with a reduced risk of prediabetes and diabetes," study co-author Tongzhi Wu, PhD, associate professor at the University of Adelaide, Australia, and a research fellow at the Hospital Research Foundation Group, told Health magazine.
Wu explains that previous studies have demonstrated many benefits of drinking tea, such as reduced inflammation and improved insulin sensitivity.
The new study focuses on another aspect of diabetes risk. “Our study shows that this is associated with increased urinary glucose excretion, which may also contribute to the benefits for blood sugar control,” said Dr. Wu.
Because the study used data collected through standardized questionnaires from a community, Dr. Wu notes that further intervention trials are needed to confirm the clinical benefits of black tea.
However, the conclusions from the new study could easily be adopted as a low-risk lifestyle habit.
How does black tea affect blood sugar levels and diabetes risk?
The underlying mechanism of black tea's effect on diabetes risk may be related to increased urinary glucose excretion as well as improved insulin sensitivity, endocrinologist Caroline Messer, MD, told Health .
"Black tea may help the kidneys remove glucose from the blood and into the urine, while improving insulin sensitivity in muscle and fat," the study authors said.
Black tea, especially pure black tea, is rich in antioxidants, which help reduce oxidative stress and reduce the risk of developing chronic disease.
A 2018 study demonstrated the effects of drinking black tea on blood sugar by giving participants a high-sugar beverage combined with either a low or high dose of black tea, or a placebo.
Results showed that those who drank low or high doses of black tea had lower blood sugar levels than the placebo group.
"Theaflavins and thearubigins may lower cholesterol and blood sugar levels," says Divya Yogi-Morren, MD, medical director of the Cleveland Clinic Pituitary Center's division of endocrinology, diabetes and metabolism.
Black tea has many overall health benefits, including helping to reduce the risk of diabetes. “The catechins from oolong tea have been shown in some studies to promote weight loss and reduce body fat,” says Yogi-Morren. “It also affects gut bacteria, promoting the growth of beneficial bacteria and inhibiting harmful bacteria.”
Black tea can regulate glucose excretion in the kidneys, meaning more glucose can be excreted from the body, reducing the risk of high blood sugar and diabetes, she explains.
The unique fermentation process produces bio-compounds with antioxidant and anti-inflammatory effects, which help increase insulin sensitivity and the performance of beta cells in the pancreas.
Diabetes occurs due to decreased insulin production from the pancreas or decreased insulin sensitivity. When insulin production and sensitivity are improved, the risk of diabetes is reduced.
Black tea can also enhance the effects of insulin, improve insulin resistance, protect the beta cells in the pancreas that produce insulin, eliminate free radicals in the body and reduce inflammation, says Dr. Yogi-Morren.
If you want to add black tea to your pantry, Gutierrez recommends choosing natural black teas, without artificial ingredients.
While more research is needed to confirm the effects of black tea on diabetes risk, adding black tea to your routine is still a worthwhile endeavor.
"Our observations support the idea of regular tea consumption, especially black tea, as a safe and cost-effective approach to reducing the risk of prediabetes and diabetes," said Dr. Wu.
Source: https://tuoitre.vn/mot-coc-tra-den-moi-ngay-co-the-giup-giam-duong-trong-mau-va-giam-nguy-co-mac-tieu-duong-20241215081430348.htm
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