The researchers considered that the primary component might not be vitamins, and suspected that another type of antioxidant chemicals called polyphenols could play a part. (ahealthblog.com)
Exactly how the tea protects against heart disease remains unclear, but Kuriyama speculates that antioxidant chemicals in green tea, called polyphenols, reduce the action of free radicals in the body, which may damage cells. (newscientist.com)
Green tea contains antioxidant chemicals, more commonly known as catechin polyphenols. (fitnessandpower.com)