It's easy to make mistakes when it comes to buying food. (Even the most seasoned nutrition mavens, who should know better, occasionally screw up.) Maybe you didn't notice that the reduced-fat peanut butter has as many calories as (and more sugar than) the regular. Or that you typically fill your bowl with not one, but two 200-calorie servings of cereal. Or that you would never touch Wonder bread but can't resist a crusty (white flour) baguette. It's not just that we’re too harried or rushed to pay attention to details while shopping. Often the food industry uses (sometimes subtle) tricks to make a sale. Selling is its job, after all. Here are 10 food goofs you need never make again.