Fresh warning on red meat health risks
A diet high in red meat can shorten life expectancy, according to researchers at Harvard Medical School.
The study of more than 120,000 people suggested that red meat increased the risk of death from cancer and heart problems more than previously thought.
Substituting red meat with fish, chicken or nuts lowered the risks, the authors said.
The BBC's health correspondent, Jane Hughes reports.
13 Mar 2012