Black tea is one of the six famous teas in China. It is named because the finished tea it makes looks black. What are the functions and functions of black tea? Let me explain the efficacy and function of black tea in detail for you.
The efficacy and function of black tea;
Clear fat, lose weight and gain weight. Polyphenols and their oxidation products in black tea can dissolve fat and promote the discharge of lipid substances; It can also activate protein kinase, accelerate fat decomposition and reduce body fat content. So Anhua black tea is called by Koreans? Diet tea? ; The Japanese call it? Beauty tea? ; What do people in Taiwan Province Province call it? Xiaoshi tea? .
Antioxidant and anti-aging. Catechins, theaflavins, theanine and tea polysaccharides in black tea, especially high-content compound flavonoids, all have the function of scavenging free radicals, because tea has the function of antioxidation and delaying cell aging.
Clearing stomach helps digestion. Black tea is rich in dietary fiber and has the function of regulating stomach and clearing stomach; And with the participation of probiotics, it can improve the intestinal microbial environment and help digestion. In China, there is a tradition of using old black tea to treat abdominal distension, dysentery and indigestion.
Sterilization and anti-inflammatory The main components of dark tea soup color are theaflavins and thearubigins. Studies have shown that theaflavin is not only an effective free radical scavenger and antioxidant, but also has obvious bactericidal effect on Botox, Enterobacteriaceae, Staphylococcus aureus, Clostridium perfringens and Bacillus cereus. In addition, theaflavins can also inhibit the invasion of influenza virus and the infection of rotavirus and enterovirus.
Dredge blood vessels and reduce the three highs. Black tea is rich in theaflavins, which can soften blood vessels and effectively remove atheromatous substances from blood vessel walls. Cardiovascular scavenger? ; Theanine can effectively inhibit the increase of blood pressure, and flavonoids can relax the wall of blood vessels, increase the effective diameter of blood vessels and reduce blood pressure; Tea polysaccharide has similar effect to insulin, reducing blood sugar content; Polyphenols and their oxidation products can dissolve fat, promote the excretion of lipid substances in blood vessels and reduce the content of cholesterol in blood.
Detoxification, liver protection and kidney protection. The unique functional factors of probiotics, polyphenol oxides, catechins and other complex components in black tea participate in human metabolism, and have a special purification function for human internal organs, adsorb toxic substances (alcohol, heavy metals, body garbage) and excrete them, which can deeply detoxify; It can also inhibit bacteria and protect liver and kidney.
Diuretic and detoxifying. The diuretic effect of caffeine in black tea is realized by the kidney promoting the filtration rate of water in urine. At the same time, the stimulating effect of caffeine on bladder can not only help diuresis, but also help sober up and relieve alcoholism. At the same time, tea polyphenols in black tea can not only precipitate nicotine in tobacco and excrete it with urine, but also remove free radicals in smoke and reduce the toxic effect of smoke on human body. Tea polyphenols have a strong adsorption effect on heavy metal poisons, so drinking more tea can also alleviate the toxic effect of heavy metals.
Taboo of black tea:
1, avoid drinking new tea. Fresh tea has a short storage time and contains more unoxidized polyphenols, aldehydes and alcohols, which has a strong stimulating effect on human gastrointestinal mucosa and is easy to induce stomach diseases. Therefore, drink less black tea and avoid new tea that has been stored for less than half a month.
2, avoid drinking tea all over the body. Tea is polluted by harmful substances such as pesticides during planting and processing, and there are always some residues on the surface of tea. Therefore, the first tea has a washing function and should be discarded.
3, avoid drinking tea on an empty stomach. Drinking tea on an empty stomach will dilute gastric juice and reduce digestive function. At the same time, the high water absorption rate can make a large number of bad components in tea enter the blood, thus causing dizziness, palpitation, weakness of hands and feet and other symptoms.
4, avoid drinking tea after meals. Tea (mainly green tea) contains a large amount of tannic acid, which can react with iron in food to generate new substances that are difficult to dissolve, which will cause iron deficiency in human body and even induce anemia over time. Therefore, the correct drinking time is: one hour after meals.
5, avoid drinking tea with fever. Tea contains theophylline, which can raise body temperature. Is it the same for fever patients to drink tea? Add fuel to the fire? .
6, patients with ulcers avoid drinking tea. Caffeine in tea can promote gastric acid secretion, increase gastric acid concentration, induce ulcers and even perforation.
7, avoid drinking tea during menstruation. Drinking tea during menstruation, especially strong tea, will induce or aggravate menstrual syndrome.
The above content is the efficacy, function and taboo of black tea I introduced to you, hoping to help you know more about black tea.
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