Green tea contains polyphenols which are thought to improve health, particularly catechins, the most abundant of which is epigallocatechin gallate (EGCG). In clinical studies of humans suggest that green tea can reduce the risk of cardiovascular disease and cancer as well as beneficially impact bone density, cognitive function, dental cavities, and kidney stones. Green tea also contains carotenoids, tocopherols, ascorbic acid (vitamin C), minerals such as chromium, manganese, selenium or zinc, and certain phytochemical compounds. It is a more potent antioxidant than black tea.

• Stopping certain neurodegenerative diseases such as Alzheimer's and Parkinson's
• The prevention and treatment of cancer
• Treating multiple sclerosis
• Preventing the degradation of cell membranes by neutralizing the spread of free radicals which occur during oxidation process
• Reducing the negative effects of LDL cholesterol (bad cholesterol) by lowering levels of triglycerides and increasing the production of HDL cholesterol
• Joy Bauer, a New York City nutritionist, says [the catechins in green tea] increase levels of the metabolism speeding brain chemical norepinephrine (noradrenaline)
• It is used to raise the metabolism and increase fat oxidation
• Reduces the risk of heart diseases and heart attacks by reducing the risk of trombosis
• Used to treat rheumatoid arthritis and cardiovascular diseases
• Reduces the risk of esophageal cancer