Soy isoflavone inhibits metastasis
Genistein is one type of isoflavone found in soyfoods. New research in mice shows that genistein inhibits the spread of colon tumors to other tissues. Interestingly, genistein doesn’t affect the tumor itself—just its spread. This may help to explain why soyfoods are associated with decreased colon cancer metastasis in population studies. It also might provide a rationale for use of genistein in clinical practice to improve colon cancer prognosis. Soyfoods are the only foods containing significant amounts of genistein. More information here….