① Clear fat and lose weight: polyphenols and their oxidation products in black tea can dissolve fat and promote the discharge of lipid substances; It can also activate protein kinase, accelerate fat decomposition and reduce body fat content. Therefore, black tea is called "slimming tea" by Koreans; Japanese people call it "beauty tea"; People in Taiwan Province Province call it "Xiaoshi Tea".

2 Clearing stomach and helping digestion: Black tea is rich in dietary fiber, which has the function of harmonizing stomach and clearing stomach; And with the participation of probiotics, it can improve the intestinal microbial environment and help digestion. In China, there is a tradition of using old black tea to treat abdominal distension, dysentery and indigestion.

(3) dredge blood vessels and reduce the three highs. Black tea is rich in theaflavins, which can soften blood vessels and effectively remove atheromatous substances in blood vessel walls, and is called "cardiovascular scavenger"; Theanine can effectively inhibit the increase of blood pressure, and flavonoids can relax the wall of blood vessels, increase the effective diameter of blood vessels and reduce blood pressure; Tea polysaccharide has similar effect to insulin, reducing blood sugar content; Polyphenols and their oxidation products can dissolve fat, promote the excretion of lipid substances in blood vessels and reduce the content of cholesterol in blood.

④ Clearing away heat and toxic materials and protecting liver and kidney.

The unique functional factors of probiotics, polyphenol oxides, catechins and other complex components in black tea participate in human metabolism, and have special purification function for human internal organs, which can absorb toxic substances (alcohol, heavy metals, garbage) in the body and excrete them, and can deeply detoxify; It can also inhibit bacteria and protect liver and kidney.