Farvid MS, et al. – In this systematic review and meta-analysis of prospective studies, researchers summarized available evidence on the association of red meat and processed meat consumption with breast cancer incidence. For this purpose, they searched MEDLINE and EMBASE databases through January 2018 for relevant studies and identified 13 cohort, 3 nested case-control, and 2 clinical trial studies concerning the topic. In addition, two nested case-control studies evaluating the link between red meat and breast cancer stratified by N-acetyltransferase 2 acetylator genotype were included. Findings suggested no association among those with either fast or slow N-acetyltransferase 2 acetylators. High processed meat consumption seemed to be associated with increased breast cancer risk.