Drink at least three cups of tea a day? A study of 30,000 people found that drinking green tea was associated with a lower risk of stomach cancer

“Friend, it’s three o’clock, let’s drink tea first!”

China is the origin of tea, and many people have the habit of drinking tea. According to statistics, the per capita consumption of tea in China is 200% of the global average, and ranks sixth in the world. This amount is huge. Recently, a new study also revealed the anti-cancer potential of tea, which may be good news, especially for Chinese people.

1. New study: drinking three cups of green tea a day may reduce the risk of stomach cancer

Recently, professor Georgia Martimianaki from the University of Milan, led published a study in the British Journal of Cancer, Studies have found that drinking tea may reduce the risk of cancer in the body. The study included data on subjects from 22 studies, including Spain, Japan, China, the United States, and Brazil, with a total of 9,438 gastric cancer patients and 20,451 controls. Through analysis, we found the following:

1. Chinese who drink green tea regularly have a lower risk of stomach cancer

Compared with those who did not drink tea, the odds ratio for gastric cancer in those who drank three cups of tea per day decreased to 0.91. Among Chinese who regularly drink green tea, Helicobacter pylori infection and cardiac cancer subjects, there is a strong negative correlation between tea drinking and the risk of gastric cancer. In Europeans and Americans, no association between tea and stomach cancer was observed.

2, drink cold tea and warm tea, the effect is better

in the right tea When habitually analyzed, the researchers found that those who drank cold or warm tea were inversely associated with gastric cancer risk compared with those who did not drink tea, while those who drank strong tea and hot tea were not associated with gastric cancer risk.

It is worth noting that this study is only an observational study, which cannot directly prove that drinking tea will definitely be able to fight cancer, and it needs to be viewed objectively.

Second, to drink tea in summer, should you drink black tea or green tea?

As the saying goes, “spring flowers, summer green, autumn green, winter red”, which means that green tea is more suitable for drinking in summer, and black tea is suitable for drinking in winter. Researcher Xu Yongquan of the Tea Research Institute of the Chinese Academy of Agricultural Sciences said that green tea contains active ingredients such as tea polyphenols, theanine, tea polysaccharides and caffeine. There are certain benefits for health. Coupled with the non-fermentation characteristics of green tea, more natural nutrients can be retained. In hot summer, it can clear heat and detoxify and promote metabolism.

In addition, green tea has these benefits

1, Antioxidant

Green tea is rich in tea polyphenols, which have antioxidant effects. For some beauty-loving ladies, drinking more green tea can help the skin to resist oxidation , slow down the rate of aging.

2. Eye protection

A report published in the Chemical Weekly of Agriculture and Food A study pointed out that the antioxidant substances in green tea can enter the eye tissue, reduce the damage of free radicals to the eyes, and play a certain preventive role in eye diseases such as glaucoma.

3. Helps improve brain vitality

The catechins contained in green tea have Activating thoughts and increasing the speed of information processing can help increase the vitality of the brain.

Drinking green tea properly has many health benefits, but Pay attention to these things when brewing to avoid the loss of nutrients in green tea due to improper brewing habits.

Third, it is best not to have these bad habits of brewing green tea

1. Do not brew with boiling water< /strong>

The temperature of the water for brewing green tea should be kept at about 85℃ is appropriate, overheating Water is easy to cause tea leaves to be stuffy, and the nutrients in them will be lost and denatured to a certain extent, and brewing at high temperatures will also change the taste of tea.

2. Don’t put too much tea leaves, too strong

each time the tea leaves are brewed The amount of brewing should be judged according to the size of the tea set. Generally, it is recommended to brew at the ratio of 1:50, and do not place too much each time. Tea, avoid too much caffeine intake.

3. Do not brew directly against the tea

Avoid when brewing Punch directly against the tea leaves, otherwise it will easily damage the young leaves and make the tea soup cloudy. The best way is to pour water along the edge of the cup.

4. Don’t drink it while it’s hot

Don’t drink tea while it’s hot, it is recommended to use Test the temperature of the teacup with your hand, and drink it after it is not hot. If it is still hot, it means that the temperature of the tea is likely to be above 65°C, and hot drinks above 65°C are Class 2A carcinogens, long-term drinking can easily induce cancer.

Drinking tea can bring certain benefits to our health, but we must pay attention The above-mentioned things, to avoid the threat to health because of the wrong way of drinking tea, it will not be worth the loss!

References:

[1].Martimianaki G, Alicandro G, Pelucchi C, et al. Tea consumption and gastric cancer: a pooled analysis from the Stomach cancer Pooling (StoP) Project consortium [published online ahead of print, 2022 May 24]. Br J Cancer. 2022;10.1038/s41416-022-01856-w. doi:10.1038/s41416-022-01856-w

[2] Wang Jiaqi. The benefits of drinking green tea [J]. Knowledge on Prevention and Treatment of Cardiovascular Diseases, 2018: 61-61.

[3] “Food Safety Consumption Tips! In the hot summer, let’s have some green tea”. China Consumer Network. 2021-08-19

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