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Health authorities in Britain have against eating too much red meat. The British government has a set of red meat guidelines which caution eating more than 500 grams a week, or 70 grams a day. This is the of two beef burgers. Scientists say that eating more than this increases the of getting colon and bowel cancer. The new are down on the 90 grams a day recommended in 1998. Researchers think people who eat a lot of meat like lamb, beef, ham and bacon have a risk of cancer. A 2005 European study found people who about 160 grams of red meat a day increased their bowel cancer risk by one third to people who ate little meat. People have around a one in 19 of developing bowel cancer in their lifetime.

Experts told people the new guidelines did not people had to abandon red meat. The of health information at Cancer Research U.K. said: "This doesn't mean people have to become vegetarian, but if you're a steak every day, that's probably not helping.” Scientists are as to why red meat increases the risk of colon cancer. They that haem, the pigment that gives meat its colour, damages the cells in the digestive and the lining of the colon. A World Cancer Research Fund official said: "Following diet and lifestyle can help protect against cancer. Red meat can be part of a healthy diet. It is a good source of protein and vitamins and minerals…But people who eat a lot of red and processed meat should cutting down.”