Tea Contains Flavonoid Antioxidants
Antioxidant
A compound that helps prevent or delay oxidative damage to the body, cells and tissues. Antioxidants are found naturally in the body and many foods and may inhibit the harmful effects of free radicals, which scientists believe may contribute to chronic diseases like heart disease and cancer.
Antioxidants can help the body protect itself against A compound that helps prevent or delay oxidative damage to the body, cells and tissues. Antioxidants are found naturally in the body and many foods and may inhibit the harmful effects of free radicals, which scientists believe may contribute to chronic diseases like heart disease and cancer.
Free Radicals
Oxygen by-products, produced when the body's cells burn oxygen. Free radicals are unstable oxygen molecules that have lost an electron. In seeking out another electron to pair with, free radicals attack cell membranes and tissues that can release electrons. Environmental factors, such as air pollution, exposure to sunlight and smoking, also contribute to the formation of free radicals. On average, each cell in the body comes under attack by a free radical every 10 seconds. If free radicals are not controlled, they may damage cells and potentially contribute to disease such as cancer and heart disease.
free radicals-molecules that can damage cells. Antioxidants in tea called Oxygen by-products, produced when the body's cells burn oxygen. Free radicals are unstable oxygen molecules that have lost an electron. In seeking out another electron to pair with, free radicals attack cell membranes and tissues that can release electrons. Environmental factors, such as air pollution, exposure to sunlight and smoking, also contribute to the formation of free radicals. On average, each cell in the body comes under attack by a free radical every 10 seconds. If free radicals are not controlled, they may damage cells and potentially contribute to disease such as cancer and heart disease.
Flavonoid
A group of substances present in both black and green tea that possess antioxidant properties. Flavonoids are also found in apples, garlic, onions, grape juice, red wine, and other foods and beverages.
flavonoids can do that.A group of substances present in both black and green tea that possess antioxidant properties. Flavonoids are also found in apples, garlic, onions, grape juice, red wine, and other foods and beverages.
Whether iced or hot, Teas made from real tea leaves provide more than great taste. Like fruits and vegetables, regular and decaffeinated brewed teas contain natural antioxidants called flavonoids* (10-22, 68, 69). Research suggests that antioxidants can be beneficial to health by helping the body protect itself from the harmful effects of "free radicals" (1-9, 26-30, 73-75). Free radicals, molecules, which occur in the environment and are naturally produced by the body, can cause damage to cells. Chronic damage by free radicals is one factor thought to contribute to the development of many chronic diseases including heart disease or cancer. An average cup of brewed green or black tea has 150-200 mg of flavonoids (10-21).
Currently, tea's potential health benefits are the focus of many scientific studies, and new research is emerging regularly. The American Dietetic Association in its Position Paper on Functional Foods included black and green tea as functional foods. Based on the available scientific research, the paper stated that the health benefits of drinking black or green tea include possible reduced risk for coronary heart disease, as well as gastric, esophageal and skin cancers (33). Tea and tea flavonoids have also been shown to help strengthen the body's immune system (34-43, 57-64), protect teeth by inhibiting plaque bacteria (44, 45, 56), potentially fight free radicals produced during strenuous exercise (76-80), and possibly increase calories burned during everyday activities (65, 66). While this emerging research is promising, more studies on the role of tea and Flavonoid Antioxidants must be completed before drawing any conclusions about tea's contribution to health and wellness.
The flavonoids found in black and green tea have been shown to be powerful antioxidants. The USDA and other researchers have used test tube based studies to measure the antioxidants in tea, fruits and vegetables, and antioxidant vitamins, such as vitamin C and vitamin E. These studies have confirmed that tea contains important dietary antioxidants call flavonoids. (1, 2, 3, 71) Additionally, studies show tea flavonoids are absorbed by and can act as antioxidants in the body (23-32, 72). Together, these studies provide evidence that tea contains protective antioxidants and antioxidants can help the protect body itself against free radicals, molecules that can damage cells.
*While tea is a naturally rich source of antioxidants, it is not a substitute for fruits or vegetables, which provide a wide range of antioxidants and essential vitamins and minerals. Please consult your doctor regarding a diet/nutritional plan that is right for you.
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