Bread, cereals and soy increase the risk of ovarian cancer

This study was published in Cancer Epidemiology, Biomarkers and Prevention 2011 Feb;20(2):308-17

Study title and authors:
Dietary phytoestrogens and the risk of ovarian cancer in the women's lifestyle and health cohort study.

Hedelin M, Löf M, Andersson TM, Adlercreutz H, Weiderpass E.
Department of Genetic Research, Folkhälsan Research Center, Biomedicum Helsinki, Helsinki, Finland.

This study can be accessed at: http://www.ncbi.nlm.nih.gov/pubmed/21098648

This study investigated the relationship between diet and ovarian cancer. The study included 47,140 women who were followed for 16 years.

The study found:
(a) Women who consumed the most whole-grain bread had a 48% increased risk of ovarian cancer compared to the women who consumed the least whole-grain bread.
(b) Women who consumed the most isoflavones (soy products) had a 15% increased risk of ovarian cancer compared to the women who consumed the least isoflavones.
(c) Women who consumed the most cereal fibre had a 19% increased risk of ovarian cancer compared to the women who consumed the least cereal fibre.
(d) Women who had ovarian cancer consumed 8% less meat than women without ovarian cancer.

The data from the study shows that the risk of ovarian cancer increases with higher consumption of bread, cereals and soy.