About Genistein/Daidzein Extract
Soy isoflavones (primarily genistein and daidzein) are phytoestrogens studied for menopausal vasomotor symptoms and bone density. Meta-analyses show a modest reduction in hot-flash frequency/severity vs. placebo; effects on bone density are smaller and less consistent. Distinct from soy protein (see soy_protein) — isoflavones are the estrogenic component, not the macronutrient. Caution for individuals with estrogen-sensitive cancers without medical guidance.
What Genistein/Daidzein Extract supports
- Moderate evidence for reducing menopausal hot-flash frequency and severity
- Some evidence for supporting bone density in postmenopausal women — smaller, less consistent effect
How much Genistein/Daidzein Extract to take
The RDA prevents deficiency. The effective range is what clinical trials used to actually move the outcome.
Effective
40–100
mg
Range used in menopausal-symptom and bone-density RCTs/meta-analyses (isoflavone aglycone equivalents).
Clinical evidence
Moderate clinical evidence. Meta-analyses support modest reduction in menopausal hot flashes; bone-health evidence is weaker and mixed.
Examine.com