Challenge yourself to a month without meat We'd like you to try going without meat for a whole month. Whether you go meat-free, or decide to ditch the dairy or fish as well, it's up to you. All we ask is you say no to eating meat and yes to raising money for people living with cancer. 31 long days without so much as a cheeky bacon sandwich might sound like a struggle, but you'll be doing something amazing for people with cancer. All the money raised by those taking part in Meat free March will help Macmillan support even more people facing cancer.