Race Ca / Con age Slackia sp. count* total isoflavone Daidzein Genistein Glycitein DHD Equol o-DMA Soy intake CA Con 81 6.9 83.7 0 34.6 16.1 0 33 0 Medium CA Con 71 0 717.3 180 339.4 44.8 8.2 145 0 Low CA Pca 80 0 181.6 48 36.9 30.1 10.6 56 0 High JA Con 76 0 250.5 17.8 155.1 39.6 0 38 0 Medium JA Con 82 0 553.7 208.1 99.9 65.8 0 180 0 High JA Pca 61 0 71.6 1.7 10.9 0 0 59 0 Medium JA Pca 80 0 146.5 24 21.5 0 0 101 0 High

Table 5: Characteristics of equol positive subjects (n = CA: 68cases, JA: 65 cases), *Equol-producing Slackia sp. count. (log10 cells/g feces) CA:Caucasian, JA: Japanese-American, Con: Control, Pca: Prostate Cancer.