Meta-Analysis of Soy Intake and Breast Cancer Risk

17 Feb 2006Bruce J. Trock, Leena Hilakivi-Clarke and Robert Clarke

Soy intake may be associated with a small reduction in breast cancer risk. However, this result should be interpreted with caution due to potential exposure misclassification, confounding, and lack of a dose response. Given these caveats and results of some experimental studies that suggest adverse effects from soy constituents, recommendations for high-dose isoflavone supplementation to prevent breast cancer or prevent its recurrence are premature.

Meta Analysis
1 effect
26 subjects

Reported Outcomes


Soy Nutrition risk & protective factor
Minor Protective Factor Soy

Breast Cancer Reproductive outcome
Minor decreased risk of Breast Cancer
Reproductive system

High evidence