Use of dietary supplements containing soy isoflavones and breast cancer risk among women aged > 50  y: a prospective study.

CONCLUSIONS: In this cohort of women aged >50 y, we report opposing associations of soy supplements with ER-positive and ER-negative breast cancer risk. Our results also caution against the use of these supplements in women with a family history of breast cancer. Whether the risk profile of soy supplements could be more favorable among premenopausal or recently postmenopausal women deserves further investigation.
PMID: 30831601 [PubMed - as supplied by publisher]

Source: Clinical Breast Cancer - March 3, 2019 Category: Cancer & Oncology Authors: Touillaud M, Gelot A, Mesrine S, Bennetau-Pelissero C, Clavel-Chapelon F, Arveux P, Bonnet F, Gunter M, Boutron-Ruault MC, Fournier A Tags: Am J Clin Nutr Source Type: research