The "low-fat" label has been one of the most effective pieces of food marketing ever invented. It worked so well for so long because the logic felt obvious: less fat in the food, less fat on your body ...

So, you’re trying to eat healthier, and you see those “low-fat” labels popping up everywhere. They sound so promising, don’t they? You think, “Great! I can indulge without the guilt!” But hold on a ...