Effect of Soymilk Consumption on Serum Estrogen and Androgen Concentrations in Japanese Men

In this study soya milk drinking seemed to lower estrone (one of the oestrogen family of hormones), but did not appear to affect any other hormones much at all.

Let me make that crystal clear in this study soya milk lowered an oestrogen, but not affect androgenic activity.

Here's the choice quote from the study:

Quote :

There was a significant difference between the two groups in terms of changes in serum estrone concentrations, which tended to decrease in the soy-supplemented group and increase in the control group over time. None of the other hormones measured (estradiol, total and free-testosterone, or sex hormone-binding globulin) showed any statistical difference between the two groups in terms of patterns of change. The results of the study indicate that soymilk consumption may modify circulating estrone concentrations in men.

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