We have recently reported that phagocytosis of killed Saccharomyces cerevisiae  baker’s yeast  induced apoptosis in human breast cancer cell lines MCF-Z  ZR- 75-1 and HCC70 In this study we have evaluated the ejfect of treatment with MGN-3  a modified arabinoxylan from rice bran  on phagocytosis and yeast-induced apoptosis in breast cancer cells