Supermarkets across the UK have started using the phrase "meat-free" instead of "vegetarian" on selected products. Marks & Spencer cite the trend among consumers who are more concerned about eating less meat for health benefits and not ethical reasons. Mintel says 6% see themselves as ‘vegetarian’ but 60% say they ‘eat meat-free foods.’ The "Meat-Free Mondays" campaign by Sir Paul McCartney, several popular books, and statements on sustainability by the UN have helped highlight the benefits of eating less meat. M&S will stock their meat-free products alongside products containing meat while Asda retains a separate shelf.