Table 1

Urinary isoflavone excretion (nmol/24 h)a

Control (n = 13b )Low-iso (n = 13c )High-iso (n = 14)
Daidzeind
Equol excretors810* (5.5%) (2.83,2319)4402 (4.7%) (2293,8452)8250 (4.4%) (6176,11021)
Equol non-excretors1214* (8.3%) (914,1613)6053 (6.5%) (4403,8321)10485 (5.6%) (7552,14557)
Genisteind
Equol excretors1097* (5.4%) (523,2301)7647 (5.9%) (6120,9554)15438 (5.9%) (10380,22961)
Equol non-excretors965* (4.7%) (755,1234)6317 (4.8%) (4133,9656)13969 (5.4%) (10045,19426)
Equole
Equol excretors996± 364* (454–2402)11125± 440 (10099–12243)17743± 3509 (9749–30811)
Equol non-excretors56.2± 9.7 (24–60)58.3± 10.2 (34–131)76.1± 8.7 (24–109)
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  • a Values within rows with different symbols(*†‡) are significantly different (P < 0.05).

  • b One subject did not collect urine at the end of the control diet period.

  • c One subject used antibiotics at the end of the low-iso diet period; therefore, her data were excluded.

  • d Data were log-transformed because of unequal variance and nonnormality. Values are presented as geometric mean (% dose), with 95% confidence intervals in parentheses.

  • e Mean± SE, with the range in parentheses.