Microwave popcorn that you make yourself is a deliciously healthy snack—low in calories, low in sodium and unhealthy fat and high in fiber. However, the prepackaged stuff you buy in the store often comes with some decidedly unhealthy ingredients, such as artery-clogging trans fats. While most products have reduced the amount of trans fats they contain, some major brands of “regular” popcorn (not “low-fat” or “healthy”) still contain significant amounts of these unhealthy fats. And you may have heard about a weird condition dubbed “popcorn lung,” which occurred in some manufacturing facilities that produced the buttery-tasting chemical, diacetyl, for microwave […]