Higher dietary soy intake appears inversely related to breast cancer risk independent of estrogen receptor breast cancer phenotypes

Strict adherence to a high soy diet may help hinder the development of breast cancer in premenopausal women.

This meta-analysis synthesized data from previously published studies that focused on the relationship between regular consumption of soy foods and the odds of developing breast cancer. A total of 18 studies were included in this meta-analysis. 

Researchers observed that higher intake of soy foods lowered the risk of breast cancer in premenopausal women. This study supports the notion that increased dietary ingestion of soy foods may help fight off breast cancer in premenopausal women.