The potential of nutraceuticals such as green tea polyphenol epigallocatechin-3-gallate (EGCG) and other flavonoids against breast cancer by downregulating the FASN activity has been suggested by previous studies (Tian et al., 2006; Pan et al., 2007; Puig et al., 2008; Khan et al., 2014). The gene discussed is FASN; the disease is breast carcinoma.