Very often we hear that a green tea extremely useful drink. But whether so everything is unambiguous? What advantage and whether there is a harm from a green tea?
For a start it should be noted that a green tea contains many vitamins. Certainly, it is fine for the people living in conditions of the city and forced to eat what is on sale in shops. Also in a green tea there are a lot of minerals. All are also perfectly informed on the problems connected with a lack of minerals of an organism. Thus, it is possible to speak with confidence that a green tea increases immunity, helps with prevention of many diseases – from caries to cancer, also promotes increase in metabolic rate, and for this property it is recommended for persons interested to lose weight.
Important element as a part of a green tea – tannin. It contains in a green tea in objectively large number, but its influence on an organism isn't unambiguous. The thing is that right after a tea cup it strongly invigorates (and it means that for the night you shouldn't have a green tea), but also theobromine with theophylline, that is the substances possessing vasodilating and diuretic action at the same time begin to work. Thus, if to consider a bigger interval of time after drinking of a cup of a green tea, one may say, that it will reduce pressure. And it means that hypotensive persons should belong to this drink with extreme care. But also hypertensive persons shouldn't be fond of a green tea.
Also with extreme care it is necessary to treat the green tea and people having excessive acidity of a stomach and, certainly, a kidney-vetch. as a green tea increases acidity. At excess consumption of a green tea there can be also problems with kidneys, a liver.
So, to drink or not to have a green tea? Of course to drink, but to remember that the correct intake of any substances which have to affect positively an organism is based on the principle of moderation. And it means that you shouldn't be fond too of a green tea, to replace with it all other drinks and also it is necessary to make it correctly.