After analysis and identification, there are about 500 compounds in tea. Some of these compounds are essential ingredients for human body, which are called nutritional ingredients. Such as vitamins, protein and amino groups.

Acids, lipids, sugars and mineral elements. It has high nutritional value for human body. There are also some compounds that have health care and drug effects on the human body, which are called "You".

Components with medicinal value. Such as tea polyphenols, caffeine and lipopolysaccharide.

1. Drinking tea can supplement many vitamins needed by human body.

Tea contains many vitamins. According to its solubility, it can be divided into water-soluble vitamins and fat-soluble vitamins. Among them, water-soluble vitamins (including vitamins C and B) can

It is directly absorbed and utilized by the human body by drinking tea. Therefore, drinking tea is a good way to supplement water-soluble vitamins, and drinking tea often can supplement the body's demand for multivitamins.

Vitamin C, also known as ascorbic acid, can improve human resistance and immunity. The content of vitamin C in tea is high, which can be as high as 10 mg ~ per 100 g of green tea.

250 mg, the content of senior Longjing tea can reach more than 360 mg, which is higher than that of lemon, citrus and other fruits. Vitamin C in black tea and oolong tea is oxidized by fermentation.

Destroyed, the content decreased, and only tens of milligrams remained per100g of tea, especially black tea, with lower content. Therefore, the higher the grade of green tea, the higher its nutritional value. for each person every day

As long as you drink 10 grams of high-grade green tea, you can meet the daily needs of vitamin C.

Vitamin B 1 in B vitamins is also called thiamine, B2 is also called riboflavin, B3 is also called pantothenic acid, B5 is also called nicotinic acid, and B 1 1 is also called folic acid. The content of B vitamins in tea is shown in Table 3.

Show. Because fat-soluble vitamins are insoluble in water, it is difficult for tea 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, that is, to make tea into super tea.

Fine powder, added to various foods, such as tea-containing tofu, tea-containing noodles, tea-containing cakes, tea-containing candy, tea-containing ice cream, etc. After eating these teas, you can get the contents of the tea.

Fat-soluble vitamin nutrients give full play to the nutritional value of tea.

2. Drinking tea can supplement protein and amino acids needed by human body.

The content of water-soluble protein in tea is about 2%, and most of protein is insoluble in water and exists in tea residue. Types of amino acids in tea

There are more than 25 kinds of amino acids, among which isoleucine, leucine, lysine, phenylalanine, threonine and valine are six of the eight essential amino acids. also

Effect of histidine on infant growth and development. Although the content of these amino acids in tea is not high, it can be used as a supplement to the lack of daily needs of human body.

Drinking tea can supplement the mineral elements needed by human body.

Tea contains many elements and trace elements needed by human body. The main elements are phosphorus, calcium, potassium, sodium, magnesium and sulfur. Trace elements are mainly iron, manganese, zinc, selenium, copper and fluorine.

And iodine. For example, the zinc content in tea is high, especially green tea. The average zinc content per gram of green belt is 73 micrograms, and the high zinc content can reach 252 micrograms. The average zinc content per gram of black tea is also 32 microns.

Dick. The average content of iron in tea is 123 μ g/g dry strip; The content of each gram of black tea is 196 micrograms. These elements play an important role in the physiological function of human body. often

Drinking tea is one of the important channels to obtain these mineral elements.

Second, the pharmacological effects of tea

Tea has been used as medicine for 2,700 years in China. Materia Medica written by Shennong in the Eastern Han Dynasty, Materia Medica written by Chen Zangqi in the Tang Dynasty and Tea Spectrum written by Gu in the Ming Dynasty are all recorded in detail.

Full of the efficacy of tea. China Tea Classic recorded the pharmacological effects of 24 kinds of tea. Japanese monk and Zen master Rong Xi listed tea as a health drink in Drinking Tea for Health. at present

A large number of studies in modern science have confirmed that tea does contain biochemical components closely related to human health. Tea not only has the functions of refreshing mind, clearing away heat and relieving summer heat, promoting digestion and resolving phlegm, relieving boredom and losing weight, and clearing away heat and relieving summer heat.

It has pharmacological effects of relieving vexation, detoxicating, sobering up, promoting fluid production to quench thirst, reducing fire, improving eyesight, stopping dysentery, and removing dampness, and also has certain modern drugs for diseases such as radiation sickness, cardiovascular and cerebrovascular diseases, cancer, etc.

Rational effect. It can be seen that the pharmacological effects of tea are numerous and extensive, which cannot be replaced by other drinks. As Ouyang Xiu, a poet in the Song Dynasty, praised in Tea Song: "On merit can cure all diseases.

Disease, intellectual health and long-term service are better than flax. "The main components with pharmacological effects in tea are tea polyphenols, caffeine and lipopolysaccharide. The specific functions are:

1, which helps to delay aging.

Tea polyphenols have strong oxidation resistance and physiological activity, and are scavengers of human free radicals. According to the research of relevant departments, 1 mg tea polyphenols can eliminate excessive freedom harmful to human body.

The efficiency of this alkali is equivalent to 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 Japan,

The results of this Okuda Tayong test show that the anti-aging effect of tea polyphenols is 18 times stronger than that of vitamin E.

2, help to inhibit cardiovascular disease.

Tea polyphenols play an important role in human fat metabolism. The content of cholesterol and triglyceride in human body is high, fat deposits on the inner wall of blood vessels, and vascular smooth muscle cells proliferate to form atherosclerosis.

Plaque and other cardiovascular diseases. Tea polyphenols, especially catechins ECG and EGC in tea polyphenols and its oxidation products theaflavins, are helpful to inhibit this mottled proliferation.

Fibrinogen with enhanced coagulation viscosity decreases and coagulation becomes clear, thus inhibiting 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. According to relevant data, tea

Tea polyphenols (mainly catechins) 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. According to the clinical trials of relevant medical departments, tumor patients are treated with radiotherapy.

Mild radiation sickness, treated with tea extract, the effective rate can reach above 90%; For cytopenia, the effective rate of tea extract is 865438 0.7%; Relative radiation

It has a better therapeutic effect on leukopenia caused by radiation.

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. Many medical units in China use tea preparations for treatment.

Treating acute and chronic dysentery and amebic dysentery, the cure rate is about 90%.

6, contribute to beauty and skin care

Tea polyphenols is a water-soluble substance. Washing eyelids with it can remove facial greasy, astringe pores, disinfect and sterilize, resist skin aging, and reduce the damage of ultraviolet rays in the sun to the skin.

Injury and other effects.

7 helps to refresh yourself.

Caffeine in tea can stimulate the central nervous system of human body, enhance the excitement process of cerebral cortex, and has the functions of refreshing the brain, clearing away heart fire and calming the nerves.

8, 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 be eliminated from urine.

Excessive lactic acid helps to eliminate fatigue as soon as possible.

9, help reduce blood fat and help digestion.

The efficacy of tea in the Tang Dynasty was recorded as "eating for a long time makes people 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.

The important role, in today's fashionable language, is to help "lose weight". This is because caffeine in tea can increase the secretion of gastric juice, help digestion and enhance the decomposition of fat.

Ability. The so-called "long-term eating makes people thin" is here.

10, which helps to protect teeth and improve eyesight.

The fluorine content in tea is high, and the fluorine content per 100 g of dry tea is 100 mg ~ 15 mg, of which 80% is water soluble. If everyone drinks 10g of tea every day, they can absorb the water-soluble atmosphere.

1 mg ~ 1.5 mg, and tea is an alkaline beverage, which can inhibit the decrease of calcium in human body, and is beneficial to preventing dental caries, protecting teeth and strengthening teeth. According to relevant data, in small

The experiment of gargling with tea after meals among 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; Have no habit of drinking tea

765438+ 0.4% of the total. 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.

3. How much tea should people drink every day?

As a popular drink, how much tea should I drink a day? This varies from person to person, depending on everyone's tea drinking habits, age, health status, living environment, customs and habits, etc.

A variety of factors. Generally, healthy adults have the habit of drinking tea. Drink 6 grams of tea to 10 grams in one gulp, and brew it for two or three times. Living in plateau areas such as * * *.

People, drinking 30 grams of brick tea a day is not too much. For people who have manual labor, physical consumption and large food intake, especially those who are exposed to toxic substances in high temperature environment.

It is also appropriate for people to drink about 20 grams of tea every day. People who eat more greasy food and have a large amount of tobacco and alcohol can also increase the amount of tea appropriately. Drinking tea for pregnant women and children should be reduced appropriately.

What kind of tea is more beneficial to human health?

Generally speaking, the nutritional and medicinal components in tea are higher in famous tea than coarse old tea, and green tea is higher than black tea. From the perspective of nutrition and health care, drinking high-grade green tea is a delicate name.

Excellent tea is more conducive to human health. Although there are differences in nutrition and medicinal components in tea, tea is not suitable for people because of differences in living habits, physical conditions, occupations and living areas.

Our hobbies are different, so we should proceed from reality and choose the tea that suits us. For example, people who are weak can drink some black tea and add some sugar to the tea, which can not only increase energy,

It can also supplement nutrition. Young people are in a period of vigorous development and need more nutrition, especially drinking green tea. Women are easily agitated before and after menstruation and menopause, and drinking scented tea can soothe the liver.

Relieve depression, regulate qi and regulate menstruation. People who are obese and want to lose weight can drink more Tuocha and Oolong tea. In brotherly ethnic areas, people who eat more beef and mutton all the year round, in order to improve.

For the digestion of fatty foods, you can drink more fermented pressed tea, such as brick tea and cake tea. People who are often exposed to toxic substances can choose green tea as a labor protection drink. brain

Workers, soldiers, drivers, athletes, singers, broadcasters, actors, etc. In order to improve the agility of the brain, keep a clear head, be energetic and enhance the thinking ability.

Strength, judgment, memory, can drink all kinds of famous green tea.

Verb (abbreviation of verb) Does drinking tea and taking medicine have any effect?

Can you drink tea and take medicine? You can't generalize. In most cases, tea is not recommended to replace medicine, especially ferrous sulfate, ferrous carbonate, citric acid, ferric amine and hydroxide.

Western medicine containing aluminum, such as aluminum, will reduce or lose its efficacy when tea polyphenols in tea soup combine with metal ions and precipitate. In addition, tea contains caffeine (also known as "coffee"

Alkali ") has an exciting effect, so when taking sedative, hypnotic and antitussive drugs, it should not be sent with tea to avoid conflicts between drugs and reduce the efficacy. Some Chinese herbal medicines, such as ephedra,

Coptidis Rhizoma, quinine, Uncaria rhynchophylla, Scutellariae Radix, Ginseng Radix, etc. Generally, it should not be mixed with tea, otherwise Chinese medicine will be precipitated by tea and lose its efficacy. When taking protease, amylase and other enzyme preparations,

Drinking tea is not appropriate either. Tea polyphenols in tea can combine with enzyme and reduce its activity. Some alkaloid preparations and drugs such as atropine and aspirin should not be taken with tea. Take (a drug)

Furazolidone, methylbenzyl hydrazine, a small amount of tea can cause insomnia, and a large amount of tea can raise blood pressure. It is generally believed that drinking tea should be stopped within 2 hours after taking the medicine.