being a heavy meat eater would raise your cancer risk 18%, being a heavy smoker increases your cancer risk by a thousand percent himself why the meat industry is furious with this study and the comparison with tobacco. quoting, scientific evidence shows cancer complex disease and that a balanced lifestyle and lifestyle choicers essential to good help. the study says processed meats do cause cancer in humans and that red mat probably causes cancer, but the same arm of the world health organization also says -- here's the list -- sunlight, outdoor air pollution and would dust definitely cause cancer, and that working as a barber or hairdresser probably caused cancer, and in case you didn't know, coffee and al low viera possibly cause cancer.