The amount of tea drinking depends on drinking habits, age, health status, living environment, customs and other factors. Generally healthy adults, who have the habit of drinking tea at ordinary times, drink about 12 grams of tea a day and brew it in 3-4 times. It is also appropriate to drink about 20 grams of tea a day for people who have a lot of physical labor, consumption and food intake, especially those who are exposed to toxic substances in high temperature environment. People with more greasy food and a large amount of tobacco and alcohol can also increase the consumption of tea appropriately. Pregnant women and children, neurasthenia, tachycardia, tea consumption should be appropriately reduced.
2. Chemical composition of tea and its health care effect on human body.
The chemical composition of tea is composed of 3.5-7.0% inorganic matter and 93-96.5% organic matter. There are about 27 kinds of inorganic mineral elements in tea, including phosphorus, potassium, sulfur, magnesium, manganese, fluorine, aluminum, calcium, sodium, iron, copper, zinc and selenium. The organic compounds of tea mainly include protein, lipids, carbohydrates, amino acids, alkaloids, tea polyphenols, organic acids, pigments, aroma components, vitamins, saponins and sterols.
Tea contains 20-30% leaf protein, but only about 3.5% can be dissolved in tea soup. Tea contains 1.5-4% of free amino acids, and there are more than 20 kinds, most of which are essential amino acids for human body. Tea contains 25-30% carbohydrates, but only 3-4% can be dissolved in tea soup. Tea contains 4-5% lipid, which is also necessary for human body.
3. There are many kinds of tea at home. How to arrange drinking?
Some people drink different teas at different times of the day, and drink a cup of light senior green tea in the morning to refresh their minds. Drinking a cup of jasmine tea in the morning is fragrant and pleasant, which can improve work efficiency; Drink a cup of black tea in the afternoon to get rid of difficulties and refresh yourself; Drink a cup of milk black tea or a cup of high-grade green tea during the afternoon break to add some snacks and fruits to supplement nutrition; In the evening, you can find a few friends or family members to get together, soak in a pot of oolong tea, and have a heart-to-heart talk while drinking tea. Don't have some fun. If you are interested in this clever arrangement of drinking tea a day, you might as well try it.
4. Why do some people like to use medlar, American ginseng, white chrysanthemum, orange peel, mint, etc. to make tea in tea?
Making tea with Lycium barbarum has nourishing and anti-aging effects. The efficacy of Lycium barbarum L. was comprehensively discussed in The Classic of Materia Medica: "Lycium barbarum L., which is moist and nourishing, can also reduce fever, and is specialized in tonifying kidney, moistening lung, promoting fluid production and benefiting qi, and is an important medicine for tonifying liver and kidney due to deficiency of true yin and fatigue. The elderly have yin deficiency of seven or eight times out of ten, so taking food is mostly for the benefit of smart eyes. " Making tea with Lycium barbarum is not only effective for dizziness, vision loss, soreness of waist and knees, nocturnal emission and so on caused by yin deficiency of liver and kidney, but also has certain curative effect on hyperlipidemia, hypertension, arteriosclerosis and diabetes.