Loading...
Loading...
Also known as: Phytoestrogens, genistein, daidzein, soy extract
Plant-derived compounds from soybeans with weak oestrogen-like activity. Consumed through diet (tofu, soya milk, edamame) or in concentrated supplement form. Studied for reduction of hot flushes, bone density support, and cardiovascular health in menopausal women.
This page contains self-reported experiences from the Narrated community — not clinical data. Outcomes are subjective. Always consult your GP or specialist before starting, stopping, or changing any intervention.
Total Reports
1
Median Score (Wk 8)
6/10
Would Continue
0%
Avg Duration
12 wk
Most Common Goal
hot flashes
Most Reported Side Effect
Mild breast tenderness (100%)
Based on self-reported community data. Scores use a 1–10 scale.
Regulatory status does not mean an intervention is safe or unsafe. Laws vary by country — check your local regulations.
Women who reported on Soy Isoflavones mentioned using it for the following goals. This does not mean it is intended for or achieves any of these outcomes.
1 report from women who tried Soy Isoflavones
I used soy isoflavones for three months and found a modest but real reduction in hot flash severity. The frequency barely changed but they were less intense and shorter duration. The breast tenderness was a bit worrying at first but my GP said it was expected and benign.
Research context compiled from published sources
Isoflavones (particularly genistein and daidzein) bind preferentially to oestrogen receptor beta (ERβ) with much lower affinity than oestradiol. This selective binding may produce mild oestrogenic effects in bone, blood vessels, and the brain while having less stimulatory effect on breast and uterine tissue. Equol-producers (women whose gut bacteria convert daidzein to equol) may experience greater benefit.
Moderate Research
Some human clinical trials exist, but the evidence base is still developing.
Unknown
Dose ranges from published research. Individual dosing should be determined with your healthcare provider based on your specific circumstances.
Factual research context from published sources — not a safety assessment or recommendation. Research classifications may change as new data emerges.
Other Supplement tracked on Narrated.
Data last updated: March 19, 2026