The old leaves of green tea are rich in catechins, which have a strong resistance to free radicals and are beneficial to cancer prevention and treatment. The catechin dissolution rate increases with the temperature of the water, and it is suitable for drinking with boiling water.
Green tea contains more vitamin C than black tea, 2 to 3 cups of green tea per day can basically meet the body's need for vitamin C. The green tea can also be used as an antioxidant.
Green tea also contains more vitamin B1 and vitamin P than black tea, so green tea is more effective than black tea in antibacterial, anti-aging and vascular sclerosis, inhibit mutation, prevent radiation damage, reduce cholesterol and blood lipids, and children's caries prevention.
Green tea contains a large number of tea polyphenols. Tea polyphenols for the tea phenolic substances in the general term, it is composed of more than 30 kinds of phenolic substances by the complex, including catechins, flavonoids, anthocyanins and phenolic acids. Black tea fermentation catechins, phenolic acid, etc. is oxidized and destroyed, the loss of antiseptic effect, green tea in the active ingredients can inhibit the growth of cancer cells necessary urokinase.
The green tea buds are rich in theanine, soaked in cold water for about half an hour to make theanine dissolved, and can prevent obesity, stroke and heart disease.
Health tips for the general public can drink, obese people, the elderly, women drink better. Each time 1 cup, about 150 ml, 2 to 3 cups a day.
People with cold stomachs should not drink too much tea, especially green tea, too much will cause gastrointestinal discomfort.
Neurasthenia and insomnia patients, should not drink tea before going to bed, not to mention strong tea, otherwise it will aggravate insomnia.
Women who are breastfeeding should also drink less tea, because tea has an astringent effect on milk.
Summer heat, the body sweats more, the body fluid consumption, it is appropriate to drink green tea.
When drinking green tea, adding apple slices or crushed grains will produce an effective substance, which is more effective in preventing cancer and anti-aging.
Drugs should not be taken with tea, as this may reduce the effectiveness of the drug.