Side effects of tea polyphenols
Tea polyphenols is also a kind of caffeine food, which is generally a white crystal or powdery object, mainly soluble in water and ethanol. Therefore, after being eaten by us, although it can play a certain role in losing weight, it can also excite our cerebral cortex and bring us a refreshing effect. However, if we eat too much, it will affect our nervous and mental state, and if it is serious, it will affect our normal physiological regulation and even lead to the emergence of some diseases.
Intake of tea polyphenols
Many people say that tea polyphenols have no toxic side effects, but if tea polyphenols extracted directly from tea are directly drunk (rather than the amount naturally mixed into tea when making tea), it may be harmful to the health. Several universities have done experiments on acute toxicity and accumulation of tea polyphenols in mice. The results show that excessive tea polyphenols can cause damage to animal liver, affect nerve and mental state, and even affect normal physiological regulation and even lead to some diseases. However, studies have shown that there are no side effects when the safe oral dose does not exceed 0.242g each time. Of course, when any tea leaves are directly brewed into a tea beverage, the content of tea polyphenols in the water cup is less than 0.005g, so drinking tea directly is only beneficial to the body without any side effects.
Efficacy of tea polyphenols
(1) Enhance the function of capillaries, especially if you eat too much high-fat diet, the permeability and brittleness of capillaries will increase, which will easily lead to rupture and bleeding. Drinking tea can enhance the toughness of microvascular wall, and the drug effect is extremely obvious;
② Preventing the oxidation of vitamin O is beneficial to vitamin C in the body. The accumulation and utilization of;
(3) reducing harmful metal ions (such as hexavalent chromium ions) to non-toxic ions, thus having detoxification effect;
④ Inhibit atherosclerosis and reduce the incidence of hypertension and coronary heart disease. Some people make a comparison between drinking tea and coffee: drinking tea can inhibit arteriosclerosis, but drinking coffee can lead to arteriosclerosis. This is because although tea also contains caffeine, it also contains more tea polyphenols and vitamin C, thus eliminating the adverse effects of caffeine, but retaining the refreshing, diuretic and cardiotonic effects of caffeine. This is the uniqueness of tea as a healthy drink;
⑤ Antibacterial and bactericidal effects. Ancient working people used tea to treat red and white dysentery. Modern science shows that the antibacterial effect of tea is mainly the effect of tea polyphenols, and the antibacterial effect of green tea is greater than that of black tea.
⑥ Make hyperthyroidism patients return to normal;
⑦ Radiation injury is beneficial to the recovery of hematopoietic function, and can obviously increase the total number of white blood cells, thus enhancing the body's resistance.
(8) Inhibiting mutagens causing mutation and inhibiting cancer cells;
Pet-name ruby prevents lipid peroxidation in cells, thus having obvious anti-aging effect;
It is mainly used for promoting blood circulation, removing blood stasis, promoting the dissolution of fibrinogen in blood, reducing blood lipid, preventing thrombosis, and has the functions of losing weight and beautifying.
What is tea polyphenols?
Polyphenols widely exist in nature, such as tea polyphenols, apple polyphenols, grape polyphenols and so on. Because of its good antioxidant function, it is widely used in cosmetics, medicine and other fields.
Tea polyphenols, also known as "tea tannin" and "tea tannin", are a mixture of polyphenols existing in tea trees. It is one of the main components that form the color, fragrance and taste of tea, and it is also one of the main components with health care function in tea. It has high content, wide distribution and great changes, and has the most significant impact on tea quality.