The primary concern has been unfermented soy that has the high concentration. Fermented soy like Tofu Miso and soy sauce all are fermented and causes a breakdown of the estrogens. But yes, it takes alot. Like killing yourself with tofu alot.
but here is where it gets interesting. The various other ingredients including various isoflavones:
What do isoflavones actually do?
- Bind to estrogen receptors:
Isoflavones (especially genistein and daidzein) can attach to estrogen receptors (ER-α and ER-β). They prefer ER-β, which is more common in things like bone, blood vessels, and the brain—so they're a gentler estrogenic influence. - Modulate hormonal activity:
Depending on your hormone levels, isoflavones can act like weak estrogen when your levels are low (like post-menopause or during T-block), and block stronger estrogen when your levels are high. Think of them as hormonal seat-fillers—not Oscar winners, but they show up and keep the system running. - Anti-androgenic effects (in theory):
There’s some evidence that isoflavones may mildly reduce DHT (a potent androgen), which could influence things like hair loss or body hair patterns—but not in dramatic, hormone-therapy-like ways. - Metabolic and cardiovascular effects:
Isoflavones have been shown to improve lipid profiles, lower LDL, and reduce inflammation in some studies. Basically: they’re nice to your heart. - Effect on breast tissue:
Very mild estrogenic activity, which might make them supportive during transition—but again, we’re talking whisper-level effects compared to prescription estrogens.
Translation, unless you are graphically and urgently allergic to it.. meh.
What has to happen is the REDUCTION of testosterone and OTHER androgens to make this happen. That requires a rewire in whatever means to cause the penal and pituitary glands to change recipes.
The initial physical effect will cause a good amount of variation, with the breasts being the only exception; reversable.
For the full effect the two glands need to work in the girl mode and cause a general feedback loop that says.. all girl, all good. As long as the boy parts are present, the T will try to dominate.