Would you change your grocery list if a food label said "Walk an hour to burn off the calories in this product"? That's the idea behind a new push to include food labeling that describes the amount of exercise needed to burn off calories consumed, the researchers behind a new study said. This labeling approach "is a simple strategy that could be easily included on food/beverage packaging by manufacturers, on shelving price labels in supermarkets, and/or in menus in restaurant