Although the connection between diet, lifestyle and hormones suggests that nutritional and lifestyle factors may exert an influence in the etiology of breast cancer (BC), it is not clear whether these factors operate in the same way in women with BRCA1 and BRCA2 (BRCA) gene mutations who already have an elevated BC risk.
Epidemiology Research Unit, Research Centre, Centre Hospitalier de l'Université de Montréal (CHUM) - Hôtel-Dieu, Montreal, Quebec, Canada. andre.nkondjock@netzero.net