[geofft]

The sidebar suggests this "similar article" from 2010: "Clinical studies show no effects of soy protein or isoflavones on reproductive hormones in men: results of a meta-analysis." https://www.ncbi.nlm.nih.gov/pubmed/19524224

That meta-analysis says: "Given that isoflavone-depleted isolated soy protein is not commercially available and the composition of the product is altered by the ethanol-washed processing used to extract isoflavones, the isoflavone-depleted isolated soy protein treatment groups used in three studies 39, 40, 62 were excluded from all analyses except the subgroup analysis of the effects of soy protein dose." Citation 40 is this article.