Ngoc Quy – Thanh Nien Newspaper
People have known the benefits of drinking tea for thousands of years. Common types of tea are green tea, black tea, and white tea. Research shows that people only need to drink 4 cups a day to take advantage of tea.
The advantage of black tea is that it helps lower cholesterol levels better than many other types of tea. This benefit is because black tea contains powerful antioxidants such as theaflavin and thearubigin. Some substances in black tea also contribute to stabilizing blood sugar, according to the health news site Medical Xpress (USA).
Drinking 4 cups of tea a day can help reduce the risk of type 2 diabetes.
In addition to the specific benefits of tea, green tea is scientifically proven to help reduce the risk of Alzheimer’s dementia. Both green, black and white tea contain polyphenols, substances that can potentially prevent cancer.
A recent study published at the annual meeting of the European Association for the Study of Diabetes has determined the minimum amount of tea a person should drink each day. Research conducted by Chinese scientists. They analyzed data collected from 19 different studies. The total number of participants is more than 1 million from 8 countries.
The analysis showed that drinking 3 cups of green, black or oolong tea daily reduced the risk of type 2 diabetes by 4% over the next ten years. However, if you drink four glasses / per day, it reduces the risk by 17%. For every additional drink per day, the risk of diabetes continues to decrease by 1%.
“The results are exciting because something as simple as drinking 4 cups of tea a day can reduce the risk of type 2 diabetes,” said Dr Ly Ha Doanh, one of the study authors at the University of Science and Technology. Wuhan Technology (China) said.
Green tea helps prevent arthritis.
One of the health-promoting compounds in tea is antioxidants. These substances reduce inflammation and prevent oxidative stress, thereby reducing the risk of developing specific health problems, such as heart disease.
An abundant substance in green tea is catechin, which works to prevent cell damage. When green tea leaves are fermented, they form black tea. This fermentation process converts catechins into another antioxidant, theaflavin.
Previous studies have shown that drinking tea reduces the risk of certain types of cancer, such as prostate, lung, ovarian and colorectal cancers. However, according to Medical Xpress, some scientific evidence suggests that people should not drink hot tea at temperatures above 65 degrees Celsius because it can increase the risk of oesophagal cancer.