Multivitamins decrease breast cancer deaths

The prospective study of more than 7700 women at 40 sites who were followed for a mean 7.1 years after breast cancer diagnosis found mortality was 30% lower among those using daily MVM compared to non-users, after adjustment for confounders such as age and cancer stage.

The researchers said the study design limited causal interpretation but the association between supplement use and mortality was “highly robust”.

Breast Cancer Res Treat 2013; online 9 Oct