Would you like that burger with a side of exercise? iStockphoto.com hide caption toggle caption iStockphoto.com The Salt When Cheeseburger = Walking, Will We Eat Less? April 23, 2013 Would you eat a double cheeseburger if you knew it took two hours of walking to burn it off? Participants in a new study said, hmm, maybe not. The researchers say that exercise-based labels could do a better job than calorie counts at steering people to healthful choices.