Green tea – benefits and bred
The beneficial properties of green tea is known from ancient times and its therapeutic effect is confirmed by the scientists. But, as with any drug, even with green tea need to be careful. We will try to understand in what cases and why green tea is for the body benefit, and to whom it may harm.
Chemical composition and properties of green tea
This drink has a unique chemical composition. Consider the basic components, to find out what are the benefits of green tea.
Tannins – make up 15-30% of the total composition of green tea. These substances give the tea a bitter taste. The most important of them is the tannins and catechins. Tannins have antimicrobial properties, normalize digestion, strengthen the walls of blood vessels. Catechins have antioxidant effects, normalize metabolism.
Alkaloids . the main of which is caffeine – contained in an amount of from 1 to 4 %. However, this drink is caffeine is connected with tannins, forming a tein that acts more gently on the Central nervous system and accumulates in the body. Tein stimulates mental activity, sharpens thinking. Other alkaloids that are contained in small quantities, have vasodilator and diuretic.
The vitamins and minerals. In green tea contains almost all the vitamins, mainly C, P, A, b, D, E and K. Vitamin e is the most important, as it promotes the retention of vitamin C, strengthening the walls of blood vessels. This drink is a storehouse of minerals: iron salts, potassium compounds, magnesium, phosphorus, silicon, calcium, copper, etc.
Proteins and amino acids. The content of protein is 16 – 25 %, which is not inferior nutritional value of legumes. In green tea found 17 amino acids, among which glutamic, revitalizing the nervous system.
Essential oils – their content slightly, but they give a pleasant aroma, create a special emotional background at the tea party.
The benefits of green tea with different additives
Green milk tea – the benefits of this drink that tea can help the stomach digest milk, and the milk tea complements many nutrients and minimizes the effects of caffeine. Brings green tea, especially with milk, use in weight loss diets. Arranging fasting days with this drink, you can easily get rid of a few pounds. In addition, green tea with milk increases lactation in nursing women, helps in cases of poisoning, it is useful in kidney diseases.
Great benefits of green tea milk Oolong. It’s half-fermented full-leaf infusion with soft milky creamy taste. It can also be used for weight loss. In addition, milk Oolong enhances digestion, relieves fatigue and rejuvenates the skin.
Green tea with mint has a benefit in disorders of the stomach, relieves nausea, AIDS digestion. Peppermint has analgesic, sedative effect, improves blood circulation.
Jasmine green tea – a great useful combination. This tea is an antidepressant and an aphrodisiac due to the combination of essential oils, and prevents the development of cancer.
When drinking green tea with honey and lemon, its use increases. Honey strengthens the immune system, improves the function of the heart, kidneys, digestive system. Lemon has antiseptic properties, helps the liver detoxify. Especially useful this drink in the morning for toning and colds.
Harm and contraindications of green tea
Green tea is not desirable to use in such cases:
hypotension, as it lowers blood pressure;
in ulcer of stomach and duodenum
for insomnia, tachycardia intestine, as it increases the acidity;
because of the content of excitatory substances;
in diseases accompanied by fever, ” due to the diuretic action and the ability to raise the temperature.
In addition, there is an opinion about the dangers of green tea with milk. Some scientists believe that tea and milk are mutually neutralize their useful properties.
Remember that the main thing – to observe a measure tea. Healthy people are recommended to consume no more than 4 – 5 cups of green tea a day.