In June 2017 researchers from China published their review of the scientific literature to assess the association between red and processed meat consmption and risk of renal cell carcinoma. Twenty-three publications were included in their analysis and covered beef, salami, ham, bacon, sausages and hamburgers. Results showed that the risk of renal cell carcinoma increased with each 100g per day increase in red meat consumption and each 50g per day increase in processed meat. They therefore concluded that red and processed meat significantly increased the risk of renal cell carcinoma.
Zhang S et al. Intake of red and processed meat and risk of renal cell carcinoma: a meta-analysis of observational studies. Oncotarget. 2017 Jun 16;8(44):77942-77956