Red meat 'cancer threat'

Eating red meat introduces a potentially dangerous molecule into the body tissues, according to researchers.

Scientists from the University of California in San Diego believe it could cause heart disease and cancer by triggering a harmful immune response.

Humans cannot produce the molecule - a type of sugar - but it occurs at high levels in lamb, pork and beef.

The research is published in the Proceedings of the National Academy of Sciences.

BBC News Health