Green tea may protect DNA from damage, study suggests

Drinking green tea every day for a month may protect against damage at a genetic levels, with benefits linked to the beverage’s antioxidant content, says a new study. Combined results from a human supplementation trial and an in vitro study indicated a 20 percent reduction in levels of DNA damage, while measures of whole-body oxidative stress were unaffected, say findings published in the British Journal of Nutrition.
Read article at nutraingredients.com

You may also find this site (about green tea et al) of interest:
the phytobiologicals.com website.