Soy Isoflavonesand Estrogen Support.
Evidence gradeB
ImpactModerate
Confidencemedium
Imported rating. This grade comes from SuppCo and has not been independently reviewed. It describes research, not a product, and it is not medical advice.
The rating
- Direction
- Favourable
- Rated by
- SuppCo
- Observed
- 28 September 2026
Studies behind it
Soy isoflavones exert modest hormonal effects in premenopausal women.Xia Xu · The Journal of clinical endocrinology and metabolism1999Molecular mechanisms of action of the soy isoflavones includes activation of promiscuous nuclear receptors. A review.M. Ricketts · The Journal of nutritional biochemistry2005Effects of soy protein and isoflavones on circulating hormone concentrations in pre- and post-menopausal women: a systematic review and meta-analysisLee Hooper · Human Reproduction Update2009