There are 6 kinds of tea, and the health effects are different.
Transferred from: “Public Health and Medicine” The number of Professor Han Chi, who has been engaged in the nutrition and efficacy of tea by the Chinese Center for Disease Control and Prevention, has been a leading tea expert in China for decades.
He believes that the current more accurate data show that the health effects of tea include prevention of cancer (such as lung cancer, esophageal cancer, liver cancer, colon cancer, etc.), regulation of blood lipids, lowering blood sugar, and enhancing immune function.
Among them, anti-cancer is the main effect of tea.
After drinking tea, the nutrients in the tea cause the DNA in the body to cause damage caused by smoking.
Jiang Heyuan, an associate professor at the Tea Research Institute of the Chinese Academy of Agricultural Sciences, who studies the main military tea and health, said that the effective nutrients in tea are diverse, such as tea polyphenols, theanine, vitamins, and caffeine.
“According to the principle of production, Chinese tea can be divided into six categories, namely green tea, black tea, yellow tea, white tea, green tea and black tea.
On the basis of these six types of tea, some re-processed teas, such as flower tea, appeared.
The active ingredients in various teas are different and the efficacy is different.
What are the effects of different kinds of tea?
1 Green tea green tea belongs to non-fermented tea, and its representative varieties include West Lake Longjing, Dongting Biluochun, Huangshan Maofeng and so on.
The main function of green tea is to prevent cancer and cardiovascular disease.
In addition, it also has anti-oxidation, enhance immunity, inhibit and kill bacteria.
2 White tea Han Chi said: “White tea can be divided into two.
One is the familiar Anji white tea.
Anji White Tea is actually green tea. Because it tastes more mellow than green tea, it has been popular in recent years.
There is also a kind of white tea produced in Fujian Fuding area, the production of this tea is reduced, and the taste is heavier than ordinary green tea.
According to the current research results, this tea has a good effect in regulating the body’s immunity and lowering blood sugar.”
The main functions of white tea are to protect the brain, enhance memory and reduce anxiety.
In addition, the theanine contained in the white tea also has the effect of neutralizing the caffeine.
Jiang Heyuan said: “People who are afraid of drinking tea and affecting sleep can drink some white tea.
3 Green Tea, Black Tea Green Tea is a semi-fermented tea. Its representative varieties are Wuyi Rock Tea (Dahongpao), Tieguanyin, Frozen Top Oolong Tea, and Phoenix Single.
Black tea belongs to the whole fermented tea, and its representative varieties include Anhui’s blush and Yunnan’s blush.
In addition, black tea from India and Sri Lanka is also a world-famous brand.
Jiang Heyuan said: “Black tea has been fermented, so it is more irritating than green tea, and has the effect of promoting blood circulation and lowering plasma.
4 Black tea black tea belongs to post-fermented tea.
The black tea that people are most familiar with is Pu’er tea.
Black tea has a high content of polyphenols and has a good lipid-lowering effect.
According to reports, Professor Benal Giacto of the Henri Lendo Hospital in Paris had given 20 patients with too much blood in the blood to drink 3 bowls of Yunnan Pu’er tea every day.
A month later, he found that the trace levels in the blood of these patients were almost reduced by a quarter.
Japan’s “Health” magazine said that Pu’er tea can inhibit weight gain and reduce blood cholesterol and triglyceride levels.
Is tea the most nutritious at first?
Jiang Heyuan believes: “The famous products in some teas (such as the Mingqian tea in Longjing tea) have the same nutritional content as ordinary tea, but the nutrients contained in it may make a difference.”
Before the early tea, the tea polyphenols contained in the mixture of theanine and vitamin C contained in the tea were replaced.
Han Chi reminded that “from the perspective of health effects, you do not have to buy special expensive tea.”
So, what is the most nutritious tea?
Experts believe that the nutritional value of various teas is similar in terms of the accumulation of polyphenols in tea.
However, green tea is the easiest to process, so its nutrients can be preserved better.
How to make tea the most effective health effect?After people buy tea that suits them, how can they make the most of their health benefits?
Experts believe that the following should be done: 1 To preserve tea leaves, the most fear of tilting and smelling.
Tin containers, porcelain bottles, and tinted glass bottles are the best containers for tea, followed by iron, wooden boxes, and bamboo boxes.
The effect of preserving tea leaves in plastic bags and cartons is the second.
The container placed on the tea leaves should be placed in a dry and ventilated place, and should not be placed together with items with strong odor such as camphor, medicine, cosmetics, cigarettes, and detergents.
2 I want to make tea, Han Chi said, “Now people like to wash tea before drinking tea, but I do not agree to excessive tea.
“In the experiment, it was found that after rinsing green tea twice, the leaching precipitation of nutrients contained in it was over 70%.
After rinsing the black tea twice, the leaching rate of the nutrients contained therein is 60% or more.
That is to say, if the tea is washed excessively, the nutrients in the tea will be lost a lot.
Jiang Heyuan believes that when people have to clean tea, people should not wash tea for more than 15 seconds.
Try not to wash green tea and white tea.
3 It is recommended to drink tea Jianghe source. Ordinary people can suspend about 12 grams of tea per day, divided into 3?
4 times brewing.
People who eat too much greasy food, excessive smoking or drinking can increase the amount of tea.
Pregnant women, children, neurasthenia and tachycardia should reduce the amount of tea consumed.
Han Chi suggested that through the popularity of Kung Fu Tea, the tea people drink is “more and more hot”, which is very incorrect.
“People drink tea originally for health, but drinking hot tea will increase the incidence of cancer such as esophageal cancer.
The optimal temperature for tea when drinking tea should be about 60 degrees, not more than 70 degrees.
“If people can add the corresponding tea at different time periods, they can enhance the health of the tea. For example, drinking a cup of light green tea in the morning can stimulate the mind and clear the heart.”
Drinking a cup of jasmine tea in the morning can take advantage of the work efficiency.
Drinking a cup of black tea in the afternoon can play a role in refreshing and refreshing.
Drinking a cup of oolong tea or Pu’er tea at night can play a role in lipid-lowering without affecting sleep.