If you want some insight into the food industry, take a stroll down the candy aisle of your grocery store. There, on the labels of such products as Jelly Belly, Skittles, and Jolly Rancher, you’ll see what is perhaps a surprising claim: “Fat Free.” It’s completely true, however — these empty calorie junk foods are made almost entirely of sugar and processed carbs, making them 100 percent fat free.