In order to justify these claims, he offers a list of the main components of green tea, together with a list of the healthy effects of each. Another hero is caffeine which, as we all know, stimulates wakefulness and also acts as a diuretic. In other words, too much green tea late in the evening is likely to keep you awake. Other powerful components in a cup of tea include vitamins C, B and E, to say nothing of flavonoids that strengthen the blood vessel walls, polysaccharides that lower blood sugar, and fluorides that prevent dental cavities. These claims are not in themselves new.
Tea has an extraordinary power to prolong life.
Anywhere a person cultivates tea, long life will follow. This preoccupation with the physical benefits derived from what we eat and drink is a familiar one in China as well as Korea. It certainly appeals to many modern concerns. Yet this hardly offers a full explanation of how we should approach tea. Generally speaking, in East and West, the main category for evaluating food and drink remains gustatory pleasure and the criteria are basically aesthetic.