Herbalists have long known about the benefits of green tea. As scientists research Green Tea and Green Tea extract, it is becoming clear that many of these claims have a scientific basis.

It has been theorized that the active ingredients in green tea, the polyphenols, act as antioxidants and may actually inhibit the growth of existing cancer cells. In some laboratory studies, injections of tea extracts reduced the size of cancerous tumors in animals. The antioxidants in Green Tea may also be helpful in lowering cholesterol and preventing hardening of the arteries and ischemic heart disease. Another study found that Green Tea extract may boost energy levels and promote fat oxidation, and consequently, may be a useful tool in weight control.

Green Tea is a known antibacterial agent. In the mouth, Green Tea may help to prevent gingivitis and periodontal disease by killing E. coli and streptococcus bacteria. This antibacterial action can also be effective in treating bad breath (halitosis) by killing odor-causing bacteria. These same antibacterial properties make Green Tea a promising herbal remedy, Green Tea for stomach discomfort, vomiting and to stop diarrhea. The antibacterial action of tea is also useful in treating infections and wounds.

Several uses have been proposed for green tea, many of which are supported by medical research. The following examples taken from case studies are intended for information only and are not intended to provide medical advice.