Constituents of tea, such as polyphenols, are thought to have anti-cancer properties. Researchers in the US investigated whether there was an association between regularly drinking tea (about a cup per day for a month) and the risk of skin cancer. The study included 770 people with basal cell carcinoma (BCC), 696 with squamous cell carcinoma (SCC) and 715 matched controls.
Those who had ever consumed tea regularly had a 30 per cent lower risk of SCC and a 21 per cent lower risk of BCC; long-term regular tea drinkers had a 50 per cent lower risk of SCC.
Rees JR, Stukel TA, Perry AE et al. J Am Acad Dermatol 2007;56:81-5.