@kezmusc I used to drink soy milk during menopause as it is also is a phytoestrogen - worked so well it restarted my ovaries and at 47 delivered 2 healthy boys who are the delight of my life albeit they are doing year 12 groan!
I started menopause using HRT and switched to Remifemin which was very effective at the time. ProMensil tablets were also popular .There might be research on the Herbs app on the professional page not the patient one about the issues with Er+ breast cancer and phytoestrogens like black cohosh ( the key ingredient in Remifemin) and Red Clover ( the key ingredient in Pro Mensil)