But when you check out the nutrition labels on some types of microwave popcorn (like the "movie theatre" flavor), you'll notice a big jump in fat and calories. Take a look: Orville Redenbacher ...

As a whole grain, popcorn is low in calories and a good source of fiber. However, not all popcorn is created equal. When kept in its purest form, popcorn can be a nourishing snack. But many forms of ...