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What does green tea do?
The analysis is as follows:

1, green tea slimming and fat reduction

Green tea contains theophylline and caffeine, which can activate protein kinase and triglyceride lipolytic enzyme through multiple functions, reduce the accumulation of fat cells, and thus achieve the effect of losing weight.

2. Green tea can prevent dental caries and remove bad breath.

Green tea contains fluorine, in which catechins can inhibit the action of cariogenic bacteria and reduce the occurrence of dental plaque and periodontitis. Tannic acid contained in tea has bactericidal effect, which can prevent food residues from breeding bacteria, so it can effectively prevent bad breath.

3, green tea anti-aging

Antioxidants contained in green tea help to fight aging. Because in the process of human metabolism, if it is over-oxidized, it will produce a lot of free radicals, which are easy to age and cause cell damage. SOD (Superoxide Dismutase) is a kind of free radical scavenger, which can effectively remove excess free radicals and prevent the harm of free radicals to human body. Catechins in green tea can significantly improve SOD activity and scavenge free radicals.

4. Green tea lowers blood fat

Human experiments show that it can inhibit platelet aggregation and reduce the incidence of arteriosclerosis. Green tea contains flavonol, which has antioxidant effect, prevents thrombosis and platelet aggregation, and reduces cardiovascular diseases.

5, green tea antibacterial

Studies have shown that catechins in green tea can inhibit some bacteria that cause human diseases without harming the proliferation of beneficial bacteria in the intestine, so green tea has the function of whole intestine. Studies have shown that tea polyphenols can eliminate excessive harmful free radicals in the body, regenerate efficient antioxidant substances such as α-VE, VC, GSH and SOD in the human body, thus protecting and repairing the antioxidant system, which has a significant effect on enhancing immunity, preventing cancer and preventing aging. Drinking green tea for a long time can reduce blood sugar, blood lipid and blood pressure, thus preventing cardiovascular and cerebrovascular diseases. Suitable for drinking green tea.

Extended data

People who are not suitable for drinking green tea:

1, pregnant

Pregnant women are not suitable for drinking green tea, especially strong tea, because green tea contains a lot of tea polyphenols and caffeine, which has many unfavorable factors for both fetus and mother. Therefore, for the sake of fetal health, pregnant women should drink less green tea.

2. Patients with urinary calculi

Patients with urolithiasis are not suitable for drinking green tea, because green tea contains oxalic acid, which will form stones with calcium excreted in urine. Patients with urolithiasis will get worse if they drink a lot of green tea.

3. Patients with liver disease

Caffeine and other substances in green tea are metabolized by the liver. If the liver is sick, drinking too much green tea will exceed the metabolic capacity of the liver, which will damage the liver tissue over time.

4, the elderly

Old people are not suitable for drinking green tea because it is cool. After drinking green tea, it is very irritating to the gastric mucosa and prone to stomach pain.

Baidu Encyclopedia: Green Tea