Let me introduce green tea to you:
Three functions of green tea
American medical research report: Green tea has three major effects: (1) Caffeine: it can stimulate the central nervous system, eliminate drowsiness, strengthen the heart and diuresis, and improve endurance and memory. (2) Tannin: It has astringent and intestinal regulating effects, and can combine with harmful heavy metals (such as strontium and cadmium) in human body to form insoluble compounds, thus eliminating its toxicity and preventing blood absorption. (3) Vitamin C: it can prevent scurvy, strengthen hematopoiesis and detoxification, enhance the function of bone tissue and internal organs, and eliminate fatigue; Taking a lot of vitamin C in green tea can also prevent cancer.
Drinking tips
You can drink more green tea, but you can't make it! Therefore, to learn the correct brewing method of green tea, you must firmly remember that when brewing green tea, the water temperature should be controlled at 80℃? About 90℃. If green tea powder is brewed, it can be brewed with warm water of about 40℃ ~ 60℃. The weight is 20 grams of green tea powder and 450cc of boiling water. Don't drink it for the first time, or you will be speechless. After pouring hot water, shake it and pour it out. However, the tea brewed for the second time should be finished within 30 minutes to 60 minutes, otherwise the nutrients in the tea will become unstable and you will not enjoy so many benefits.
Green tea should not be soaked too thick, otherwise it will affect the secretion of gastric juice, and it is best not to drink it on an empty stomach-otherwise your gastric juice will react with green tea alkaloids, and there will be a battle of bliss in your confusion, which will make you suffer all day-okay? That's it. Whether you can become a beauty of green tea depends on your own practice!
The efficacy of green tea
First, the nutritional value of green tea
After analysis and identification, there are about 500 compounds in tea. Such as vitamins, protein, amino acids, lipids, sugars and mineral elements.
1, vitamin C is also called ascorbic acid. Early spring tea is often the best period of green tea quality in a year. Many famous teas, such as West Lake Longjing, "Biluochun", Huangshan Mao Feng, Guzhu Zizun, Guiping Xishan Tea, etc. , are made from the tender buds of early spring tea. Therefore, in the literature of past dynasties in China, there is a record that "spring tea is the most expensive".
Physical resistance and immunity
Tea contains many vitamins. Among them, water-soluble vitamins (including vitamin C and B vitamins) can be directly absorbed and utilized by the human body by drinking tea. The content of vitamin C in tea is high, and the content of advanced Longjing tea can reach more than 360 mg, which is higher than that of lemon, citrus and other fruits. The content of vitamin C in black tea and oolong tea decreased due to oxidative damage during fermentation, especially in black tea. Therefore, the higher the grade of green tea, the higher its nutritional value. Everyone can meet the daily requirement of vitamin C by drinking 10g of high-grade green tea every day. Fat-soluble vitamins are insoluble in water, and tea leaves are difficult to be absorbed and utilized when brewed with boiling water. Therefore, it is now advocated to "eat tea" properly to make up for this defect.
2. Supplementing protein and amino acids needed by human body.
The content of water-soluble protein in tea which can be directly absorbed by drinking tea is about 2%, and there are 25 kinds of amino acids, 6 of which belong to 8 kinds of amino acids necessary for human body. Although the content of these amino acids in tea is not high, it can be used as a supplement to human daily needs.
3. Mineral elements
Tea contains many elements and trace elements needed by human body. The content of zinc is high, especially green tea. Drinking tea regularly is one of the important channels to obtain these mineral elements.
Second, the medicinal value of green tea
Tea polyphenols, caffeine and lipopolysaccharide are the main components with pharmacological effects in tea.
(1) tea polyphenols
1. Helps to delay aging.
Tea polyphenols have strong oxidation resistance and physiological activity, and are scavengers of human free radicals. 1 mg tea polyphenols have the same scavenging effect on excessive free radicals harmful to human body as 9 micrograms of superoxide dismutase (SOD), which is much higher than other similar substances. Tea polyphenols can block lipid peroxidation and remove active enzymes. According to the test results of Tomoyo in Ota, Japan, it is confirmed that the anti-aging effect of tea polyphenols is 18 times stronger than that of vitamin E.
2. Helps to inhibit cardiovascular diseases.
The human body has cardiovascular diseases such as high cholesterol and triglycerides, such as fat deposition on the inner wall of blood vessels and atherosclerotic plaques formed after vascular smooth muscle cells proliferate. Tea polyphenols, especially catechins ECG and EGC in tea polyphenols and its oxidation products theaflavins, are helpful to inhibit this mottled proliferation, reduce the formation of fibrinogen that enhances coagulation viscosity, make coagulation clear, and thus inhibit atherosclerosis.
3. Help to prevent and fight cancer.
Tea polyphenols can block the synthesis of carcinogens such as nitrite in the body, which can directly kill cancer cells and improve the immune ability of the body. Tea polyphenols (mainly catechins) in tea are beneficial to the prevention and adjuvant treatment of cancers such as gastric cancer and intestinal cancer.
4. It is helpful to prevent and treat radiation injury.
Tea polyphenols and their oxidation products have the ability to absorb the toxicity of radioactive substances strontium 90 and cobalt 60.
5. Help to inhibit and resist viruses and bacteria.
Tea polyphenols have strong convergence, obvious inhibition and killing effects on pathogenic bacteria and viruses, and obvious anti-inflammatory and antidiarrheal effects.
6. It is helpful for beauty and skin care
Tea polyphenols are water-soluble substances, which can remove greasy face and astringe pores, and have the effects of disinfection, sterilization, anti-aging and reducing the damage of ultraviolet rays in the sun to the skin.
(2) Caffeine
1, which is helpful for refreshing.
Caffeine in tea can stimulate the central nervous system of human body, enhance the exciting process of cerebral cortex and play a refreshing role.
2, help diuresis to relieve fatigue
Caffeine in tea can stimulate the kidney, promote the rapid excretion of urine, improve the filtration rate of the kidney and reduce the retention time of harmful substances in the kidney. Caffeine can also eliminate excessive lactic acid in urine, which helps to eliminate fatigue as soon as possible.
3, help to lower blood fat and help digestion.
It is recorded in the Tang Dynasty that the effect of tea is "eating for a long time makes you thin". There is a saying among the ethnic minorities in China's border areas that "tea is indispensable for a day". Because tea helps digestion and reduce fat, in today's fashionable language, it is helpful to "lose weight". This is because caffeine in tea can increase the secretion of gastric juice, help digestion and enhance the ability to decompose fat. The so-called "long-term eating makes people thin" is here.
(3), minerals
Tea leaves that help to protect teeth and improve eyesight have a high fluorine content, of which 80% are water-soluble components. Moreover, tea is an alkaline beverage, which can inhibit the reduction of calcium in the human body, help prevent dental caries, protect teeth and strengthen teeth. According to relevant data, the experiment of "gargling with tea after meals" among primary school students can reduce the incidence of dental caries by 80%. According to the investigation of relevant medical units, 28.6% cataract patients have the habit of drinking tea; 7 1.4% have no habit of drinking tea. This is because vitamin C and other ingredients in tea can reduce the turbidity of eyes, and drinking tea often has a positive effect on reducing eye diseases, protecting eyes and improving vision.
Function of green tea
■ Wonderful beauty of green tea: Green tea beauty is the most popular beauty method in Britain not long ago. Rich in vitamin C, it has the functions of preventing skin aging and removing skin impurities, and is natural and cheap. It is said that green tea is being sold in British black tea shops.
■ The secret of the origin of green tea: drink green tea every day. What is green tea? Silly, since it is called "green" tea, it must be related to green.
It is actually a non-fermented tea. It is picked from the latest and most tender tea tree and made into tea. Its color, brewed tea soup and leaf bottom are a little green, which is why it has this name-you can't treat black tea and oolong tea as green tea!
■ Green tea rejuvenation: Everyone knows that skin should be anti-oxidation, anti-ultraviolet, and anti-stain, even lively and lovely young girls are no exception. Instead of buying those ridiculously expensive cosmetics, it is better to taste the wonderful skin rejuvenation effect of green tea-rich in vitamin C, caffeine and theanine, which can resist oxidation and neutralize free radicals, so any dark spots, wrinkles and freckles will die when they meet the essence of green tea!
■ Another secret recipe: drinking green tea is not enough to make your skin glow. Applying tea residue to all parts of the body as a mask is much more useful than using green mud made by chemical methods!
■ Green tea slimming * * *: Can green tea slim down? The answer is yes. Although there is a saying that drinking black tea to lose weight, it is always difficult for girls to control the temptation of milk and sugar cubes! On the contrary, green tea is more gentle and effective in slimming: it is rich in aromatic compounds, which can dissolve fat, remove turbidity and greasy, and prevent fat from accumulating in the body, while vitamins B 1, C and caffeine can promote gastric juice secretion, help digestion and eliminate fat. Chlorophyll can also add strength to your slimness!
In addition, green tea can also increase the metabolism of body fluids, nutrients and calories, strengthen microvascular circulation and reduce fat deposition in the body. Drink tea quickly if you want to lose weight. Originally, 8 glasses of water a day can turn you into a beautiful woman, not to mention adding green tea, a magical slimming agent.
■ Mental calisthenics of green tea: Only smart girls can drink green tea-the necessity of increasing demure temperament is self-evident. Think about the charm of beautiful tea ceremony girls in Japanese dramas-the caffeine in green tea is exactly the same as that in Maxwell or Nestle. If you absorb a certain amount of caffeine, your organs will get excited and work with energy, which will make your mind fresh and flexible.
A cup of green tea can help you clear your head after waking up in the morning or staying up for a long time-listen, you don't want to pour tea on your head, but drink tea-this stimulating and refreshing effect refers to the above-mentioned green tea caffeine. Because the caffeine in green tea is far less than that in coffee, it can stimulate skeletal muscle and accelerate its contraction.
If you are an OL (office girl), drinking a cup of green tea during work is the best choice: it not only helps to clear your head and restore your strength, but also makes you stand out among a lot of girls who drink coffee.
■ Universal Detoxification of Green Tea: Have MM ever had the experience of pulling a long face and taking detoxification drugs? Although the acne is a little less and the waist is a little smaller, it is really painful to go to the toilet with a small belly all day. If you want to relax, drinking green tea is more convenient. As we all know, its weight loss and detoxification effect is very remarkable.
Do you know that bad cholesterol is the chief culprit of many human diseases?
Tea polyphenols in green tea can inhibit the excessive formation of cholesterol in blood, and its unique bactericidal effect can also effectively prevent food poisoning. Drinking green tea often can really cure all diseases. If you want to double the effect, it will be more obvious to chew the remaining green tea residue directly-girls in South America do this, so they can be as healthy as calves.
Green tea cool juice with different fruit milk
Ingredients: kiwi fruit, half a banana, half a piece of low-fat cheese 120g, two teaspoons of green tea powder, half a cup of boiled water and two teaspoons of honey.
Method:
1. Cut kiwifruit in half, dig out the pulp with a teaspoon, and peel the banana;
2. Pour kiwi fruit, banana, cheese, boiled water, green tea powder and honey into a blender, stir well (it is not green after stirring), and pour into a cup to enjoy.
Features:
Among fruits, kiwifruit is a kind of fruit with low calorie and high nutritional value. Contains 14 kinds of nutrients, among which it has antioxidant effect. Eating or drinking its juice can prevent cancer and inhibit some chronic diseases. There is also good news that long-term consumption can prevent obesity.
Green tea powder, containing tea polyphenols, can help decompose protein and fat, and is also a good material in diet food! Heat: kiwifruit: 1, 45kcal；; Banana: 50g, 27 calories; ; Low-fat original cheese: 100g, 57 kcal; ; Honey: 30 grams, 86 kcal.