A more recent study, released Aug. 2013, showed you can put away the guilt when you enjoy your morning cup of roasted, brewed coffee. Both Green Extract and tea may be good for your liver, particularly if you have a condition called non-alcoholic fatty liver disease (NAFLD). Another of the benefits of green tea extract is support for women who have breast cancer. Green tea provides chemicals that bind estrogen. This hormone is not then free to stimulate breast cancer cells.