Table 2 Urinary isoflavone concentrations in postmenopausal women at baseline (t0) and week 8 (t8) of isoflavone and placebo arms (n = 34)

Genistein (nmol/L)

808 ± 134

12266 ± 852

655 ± 68

647 ± 73

<0.001

Daidzein (nmol/L)

334 ± 88

8146 ± 651

315 ± 82

223 ± 40

<0.001

Equol, (nmol/L)

154 ± 12

3040 ± 713

162 ± 15

198 ± 23

<0.001

   Equol producers (n = 17)

164 ± 11

5834 ± 749

179 ± 16

237 ± 29

<0.001

   Equol non-producers (n = 17)

143 ± 14

245 ± 16

145 ± 13

160 ± 12

<0.001