ealed that may adjust in vivo sugar metabolism (prevention diabetes), to reduce the blood fats blood pressure, the anti-blood to congeal, the thrombus, to sharpen organism immunity ability. The clinical trial proof, dark tea's these special functions are remarkable, is other teas cannot substitute. the dark tea soup color's principal constituent is the tea flavine and the Congo red element, the findings indicated that the tea flavine is not only one kind of effective radical scavenger and the oxidation inhibitor, and has the anticancer treatment, the anti-sudden change, the bacteriostasis anti-virus, the improvement and the treatment heart cerebrovascular disease, treats diabetes and so on many kinds of physiological functions. in the tea's mineral element mainly concentrates in the mature leaf, the stem, the stem, the dark tea collects and processes raw material to b