Farvid MS, et al. – This systematic review and meta-analysis studied the association between red and processed meat consumption with breast cancer incidence by analyzing evidence from prospective studies searched in the MEDLINE and EMBASE databases through January 2018. Data showed that a 6% and a 9% higher breast cancer risk was evident in relation to red meat (unprocessed) consumption and processed meat consumption, respectively, when the highest category of red meat (unprocessed) and processed meat consumption was compared with the lowest category. Additional findings from two nested case-control studies assessing the link between red meat and breast cancer stratified by N-acetyltransferase 2 acetylator genotype revealed no association among those with either fast or slow N-acetyltransferase 2 acetylators. Overall, an increased breast cancer risk was reported in relation to intake of high processed meat in the prospective observational studies.