Drinking tea on an empty stomach will dilute gastric juice and affect the digestive system. Moreover, the stomach and intestines will absorb the bad ingredients in tea into the blood, causing dizziness, palpitation, weakness of hands and feet and other symptoms.

Second, it is forbidden to drink tea when you are full.

Tea contains a lot of tannic acid, which can react with iron in food to form a new substance that is not easy to digest, and because of the synthesis of new substances, the human body will be iron-deficient, which will lead to iron-deficiency anemia over time. It is recommended to drink tea an hour after meals.

Third, it is forbidden to drink new tea.

The storage time of new tea is too short, and it contains many unoxidized polyphenols, aldehydes, alcohols and other substances, which has a strong stimulating effect on human gastrointestinal mucosa, thus causing stomach problems. Therefore, it is advisable to drink less or not to drink new tea, especially new tea less than half a month old.

Fourth, it is forbidden to drink tea for the first time.

When making tea, it is not recommended to drink the first course tea, because the brewed first course tea contains a lot of dust or other harmful substances polluted in the process of cultivation and processing, and there will be residues on the surface of the tea. So the first tea is equivalent to washing tea, and washing tea is not recommended.

Five, it is forbidden to drink a kind of tea.

Some families only have one kind of tea, but it is wrong to drink this kind of tea all year round. We should make corresponding adjustments according to different climates throughout the year. Drinking scented tea in spring can promote the growth of human yang. Drinking green tea in summer can clear away heat and relieve summer heat and enhance gastrointestinal function. Drinking green tea in autumn can eliminate the residual heat in the body and make people feel refreshed. Drinking black tea in winter is warm and rich in protein, which plays a certain nourishing role.

Six, sick can't drink tea.

Tea contains theophylline, and the temperature is very high most of the time when drinking tea, so the body temperature will rise after drinking tea, especially when you have a fever. You can't drink tea, which will keep your body temperature high. Moreover, tea contains caffeine, which will promote gastric acid secretion. Patients with ulcers or gastric perforation cannot drink tea.