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Tea polyphenols - the Gem of Tea

2024-09-18
What are tea polyphenols
Tea is recognized as one of the world's top three natural plant-based beverages, followed by coffee and cocoa.
Tea polyphenol (tea polyphenloys, TP) is the key substance of tea flavor, but also the main active ingredient in tea, with antioxidant, anti-inflammatory and anti-tumor and other biological functions. Tea polyphenols account for 18% to 36% of the dry mass of tea, consisting of phenolic acids, catechins, anthocyanins and flavonoids, of which catechin compounds account for about 75% of the total tea polyphenols, which is the main component of secondary metabolites of the tea tree.
Role of tea polyphenols
Tea polyphenols have strong antioxidant activity, can effectively reduce the content of free radicals and inhibit lipid peroxidation. Studies have found that the antioxidant capacity of tea polyphenols is 3 to 10 times that of vitamin C, and 3 to 9 times that of vitamin E. Tea polyphenols can help neutralize free radicals and reduce the damage caused by oxidative stress. Oxidative stress is a common factor in many chronic diseases, including cardiovascular disease, cancer, brain damage and aging. By consuming tea polyphenols, you can increase the antioxidant capacity of your body and protect your cells from oxidative damage, thus helping to maintain a healthy body.
Tea polyphenols can reduce the spread of inflammatory reactions in the body. In recent years, the role of liver tissue inflammatory response in the mechanism of obesity found that tea polyphenols can reduce the production of inflammation-related cytokines, thereby inhibiting and reducing inflammation, general inflammation (such as colitis, etc.) has a good effect. In addition, tea polyphenols can inhibit adipocyte differentiation and improve insulin resistance.
The results of population trials have shown that intake of tea (catechin intake of at least 250 mg per day) can reduce the risk of cancer. Tea polyphenols can block a variety of carcinogenic substances such as nitrite synthesis in the body, and has the effect of directly killing cancer cells, activating the inhibition of tumor cell signaling pathways and improve the body's immune ability. Studies have shown that tea polyphenols in tea (mainly catechin compounds), gastric cancer, lung cancer, intestinal cancer and other cancers prevention and adjuvant therapy, have Zen benefit.
What are tea polyphenols
Which tea has most polyphenols

Tea polyphenols can regulate cholesterol and lipid metabolism, reduce serum LDL cholesterol, triglycerides, total cholesterol levels. In addition, tea polyphenols can inhibit the inflammatory response and reduce the infiltration of inflammatory cells in blood vessels, thus helping to maintain vascular endothelial function and vascular elasticity.   
 

Some studies have shown that tea polyphenols may also have a role, including antiseptic and antiviral, to protect brain function, reduce anxiety and depression, skin beauty and other effects. However, more clinical studies are needed to confirm these effects and to understand their specific mechanisms of action.

Which tea has most polyphenols

Not all teas have the same amount of tea polyphenols. The deeper the fermentation of tea, the more polyphenols are converted into other substances, and the content of polyphenols will be reduced accordingly. Green tea is unfermented, the tea polyphenol content is quite rich, some data show that the green tea in the tea polyphenol content than the same quality of black tea is higher than 144%, than the same quality of oolong tea is higher than about 59%.

  Tea polyphenols, as a natural health substance, are safe and have a variety of benefits, including antioxidant, anti-inflammatory, cardiovascular protection and cancer prevention. By consuming tea polyphenols in moderation, we can add a safeguard to our health and enjoy the beauty of tea as well as the health benefits of tea polyphenols.     
It should be noted that although tea polyphenols are beneficial to health, excessive consumption of tea-based beverages may also have adverse health effects, such as impeding iron absorption and affecting sleep. Therefore, you should pay attention to moderation when drinking tea, and choose the right tea drink and the amount of tea to drink according to your personal situation. Meanwhile, for people with specific diseases or symptoms, it is recommended to drink tea under the guidance of a doctor or dietitian. 

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