… [23•] , the association between total dietary fibre intake and breast cancer did not differ by
oestrogen/progesterone receptor status, although they did find statistically significant breast
cancer risk reductions for high intake of fruit fibre for oestrogen and progesterone receptor
positive tumours. Sonestedt et al. [22•] found no strong evidence for differences in … [2••]
concluded that no consistent associations for dietary intakes of vitamin A, E or C on breast
cancer risk exist, although some studies have reported that higher serum levels of β-carotene …

Breast cancer, which presents the highest global incidence of all female cancers, is caused
by the interaction of genetic and environmental factors. Among the latter, diet has attracted
considerable attention, as it is a modifiable risk factor and thus offers an opportunity to
design preventive strategies. Nevertheless, only alcohol consumption has been
unequivocally related to increased breast cancer risk. Despite the failure of observational
studies in human populations to clearly define the nature of the relationship between …