Myth: Soy mimics Estrogen

Myth: Soy has an estrogenic effect on the body and should be avoided especially by those who have a family history or personal history of breast cancer or have underlying hormone imbalances.

Studies & Articles:
Isoflavones made simple - genistein's agonist activity for the beta-type estrogen receptor mediates their health benefits
https://pubmed.ncbi.nlm.nih.gov/16513288/

Selective estrogen receptor modulators and phytoestrogens
https://pubmed.ncbi.nlm.nih.gov/18843590/

Phytoestrogens and their human metabolites show distinct agonistic and antagonistic properties on estrogen receptor alpha (ERalpha) and ERbeta in human cells
https://pubmed.ncbi.nlm.nih.gov/15084758/

Soy intake related to menopausal symptoms, serum lipids, and bone mineral density in postmenopausal Japanese women
https://pubmed.ncbi.nlm.nih.gov/15084758/

Effect of soymilk consumption on serum estrogen concentrations in premenopausal Japanese women
https://pubmed.ncbi.nlm.nih.gov/9839524/

Effect of soymilk consumption on serum estrogen and androgen concentrations in Japanese men
https://pubmed.ncbi.nlm.nih.gov/11303585/

Hormones in Dairy Foods and Their Impact on Public Health - A Narrative Review Article
Natural occurrence of steroid hormones in food
https://pubmed.ncbi.nlm.nih.gov/26258087/

Milk, dairy intake and risk of endometrial cancer: a 26-year follow-up
https://pubmed.ncbi.nlm.nih.gov/21717454/