Popcorn can be a healthy snack, but you need to mind the added ingredients.
Let's start with the basics. A single cup of air-popped corn has only 30 calories. A one ounce serving - 3 full cups - is still less than 100 calories. And, it has 3 grams of fiber to boot.
Most people, however, do not eat their popcorn this way. In fact, the most common format is movie-theater popcorn. Beyond the gigantic portion size, the popcorn is soaked in unhealthy fats and sodium. A large tub can easily reach 1000 calories, with over 50 grams of saturated fats - 250 percent of the daily recommended maximum! If you do purchase popcorn at the movie theater, opt for the smallest size possible.
Supermarket popcorn is divided into ready-made and pop-at-home. Ready-made popcorn can be further divided into sweet and savory varieties. Ready-made sweetened popcorn should have an ingredient list as follows: