“…Although the relationship between lifestyle‐related parameters and breast cancer risk has been studied and some of them like breastfeeding, body fat, and adult attained height reached a “convincing” level but evidence indicating a relationship between some foods and breast cancer risk remains insufficient (Li et al, ). The lower rates of breast cancer in the Asian population who consume high levels of green tea (GT), has made the scientists to suggest a protective effect for GT against breast cancer (Schulze, Melzer, Smith, & Teschke, ), but the results of published epidemiological studies, which have evaluated the possible chemopreventive effects of GT in humans, are inconsistent (Inoue et al, ; Nagano, Kono, Preston, & Mabuchi, ; Shrubsole et al, ; Suzuki et al, ; Zhang, Holman, Huang, & Xie, ). Besides, it seems that GT extracts may be even hepatotoxic (Teschke, Zhang, Melzer, Schulze, & Eickhoff, ).…”