Table 1.

Content of IGF-1 and phytoestrogens in LIM and HIM

LIMHIMPa
IGF-1, ng/mL2.9 ± 0.061.2 ± 0.1<0.001
Phytoestrogensb (ng/mL)
 Formononetin6.0 ± 0.67.9 ± 0.30.054
 Biochanin A5.2 ± 0.612.0 ± 5.50.17
 Daidzein1.7 ± 0.65.8 ± 0.30.01
 Prunetin7.5 ± 2.4
 Equol37 ± 2.0366 ± 4.9<0.001
 Matairesinol0.63 ± 0.5
 Secoisolariciresinol9.0 ± 0.059.1 ± 0.40.43
 Enterodiol0.21 ± 0.030.09 ± 0.020.04
 Enterolactone42.4 ± 3.419.8 ± 0.10.01
 Coumestrol
 Total101 ± 3.3429 ± 11.9<0.001

NOTE: All values are mean ± SEM.

  • aProbability for no difference between the 2 milk types based on an unpaired t test.

  • bMilk samples from 2 different days of the study period from GD 11 until birth were obtained and analyzed.