https://pubmed.ncbi.nlm.nih.gov/19524224/ "Clinical studies show no effects of soy protein or isoflavones on reproductive hormones in men: results of a meta-analysis"
https://pubmed.ncbi.nlm.nih.gov/19524224/ "Clinical studies show no effects of soy protein or isoflavones on reproductive hormones in men: results of a meta-analysis"