Around six out of 10 people believe lean cuts of red meat contain more than 20 per cent fat, even though the true level is less than half that amount, research suggests.
Two-thirds of more than 2,000 people questioned also think chicken has less fat than steak, despite this not always being true.
Meatmatters, which is funded by the meat industry, carried out the survey. It said people believed meats such as beef, lamb and pork were more unhealthy than they are.
The World Cancer Research Fund has warned against eating too much red or processed meat because of fears it increases cancer risks.