The best time for green tea is generally one hour after a meal.

Don’t drink tea at four times:

1. Don’t drink tea on an empty stomach. Drinking tea on an empty stomach will dilute gastric acid, inhibit gastric juice secretion, hinder digestion, and even cause palpitations and headaches. , stomach discomfort, dizziness, upset and other "tea drunkenness" phenomena, and affect the absorption of protein, and can also cause gastric mucositis. If "tea drunkenness" occurs, you can hold candy in your mouth or drink some sugar water to relieve it.

2. Don’t drink tea when you are drunk. Tea can excite the nerve center. Drinking strong tea after being drunk will increase the burden on the heart. Drinking tea will also accelerate the diuretic effect, causing the toxic aldehydes in alcohol to be excreted from the kidneys before they are decomposed, which is highly irritating to the kidneys and harmful to health. Therefore, people with heart and kidney disease or poor function should not drink tea, especially large amounts of strong tea; for healthy people, they can drink a small amount of strong tea, and after they wake up, they can eat a large amount of tea. Fruits, or sips of vinegar and other methods can speed up the body's metabolism and relieve drunkenness.

3. It is not advisable to drink tea before going to bed. It is best not to drink tea within 2 hours before going to bed. Drinking tea will excite the spirit, affect sleep, and even cause insomnia, especially freshly picked green tea. After drinking it, the nerves will Very easily excited, causing insomnia.

4. Do not drink tea when taking medicine. There are many types of medicines with different properties. Whether you can take medicine with tea cannot be generalized. The tannins and theophylline in tea can undergo chemical changes with certain drugs. Therefore, when taking hypnotic, sedative and other drugs, as well as iron-containing blood supplements, enzyme preparations, protein-containing drugs, etc., tea polyphenols can easily interact with certain drugs. The iron will react and cause precipitation. It is not advisable to use tea to deliver the medicine to prevent it from affecting the efficacy of the medicine. Some Chinese herbal medicines such as ephedra, uncaria, coptis, etc. should not be mixed with tea. It is generally believed that tea should not be drunk within 2 hours of taking medicine. When taking certain vitamin drugs, tea has no effect on the efficacy, because the tea polyphenols in tea can promote the accumulation and absorption of vitamin C in the human body.

Green tea (Green Tea) is one of the main tea types in China. It refers to a drink made from the new leaves or buds of the tea tree without fermentation, and has been cured, shaped, and dried. The color of the finished product and the brewed tea soup retain the green tone of the fresh tea leaves. Regular drinking of green tea can prevent cancer, lower fat and lose weight, and can also reduce the harm caused by nicotine to smokers.

The effects of drinking green tea:

1. Exciting effect: The caffeine in tea can excite the central nervous system, helping people to cheer up, improve thinking, eliminate fatigue, and improve work efficiency.

2. Diuretic effect: Caffeine and theophylline in tea have diuretic effect and are used to treat edema and hydrodemuloma. Acute jaundice hepatitis can be treated by utilizing the detoxification and diuretic effects of black tea sugar water.

3. Cardiotonic and antispasmodic effects: Caffeine has the effects of strengthening the heart, relieving spasms, and relaxing smooth muscles. It can relieve bronchospasm and promote blood circulation. It is a good drug for treating bronchial asthma, relieving cough and reducing phlegm, and myocardial infarction. Complementary medicines.

4. Inhibit arteriosclerosis: Tea polyphenols and vitamin C in tea have the effect of activating blood circulation and removing blood stasis to prevent arteriosclerosis. Therefore, among people who drink tea regularly, the incidence of hypertension and coronary heart disease is lower.

5. Antibacterial and antibacterial effects: The polyphenols and tannic acid in tea act on bacteria, coagulating bacterial proteins and killing bacteria. It can be used to treat intestinal diseases, such as cholera, typhoid, dysentery, enteritis, etc. If the skin develops sores, ulcers and pus, or the skin is broken due to trauma, rinse the affected area with strong tea, which has anti-inflammatory and bactericidal effects. Oral inflammation, ulceration, and sore throat can also be treated with tea, which also has certain effects.

6. Weight loss effect: Various compounds such as caffeine, inositol, folic acid, pantothenic acid and aromatic substances in tea can regulate fat metabolism, especially oolong tea, which has a good decomposition effect on protein and fat. . Tea polyphenols and vitamin C can lower cholesterol and blood lipids, so drinking tea can help you lose weight.

7. Anti-caries effect: Tea contains fluorine. Fluoride ions have a great affinity with the calcium in teeth and can turn into a kind of "fluoroapatite" that is relatively insoluble in acid. It adds a protective layer to the teeth and improves their ability to resist acid and caries.

8. Inhibition of cancer cells: It is reported that the flavonoids in tea have varying degrees of anti-cancer effects in vitro, among which vitexine, morin and catechins have stronger effects.