“Depending on its preparation, popcorn can be a healthful snack. When air-popped, unsweetened, and unsalted popcorn contains plenty of fiber, vitamins, and minerals that the body needs. Checking the labels of foods before buying them and preparing ingredients at home can help people make more healthful dietary choices.”
Many people will be more used to eating popcorn at the cinema with toppings or flavorings. These added extras tend to have little nutritional value. Microwave popcorn may also contain additives, and the bags can have contaminants.
Premade popcorn often contains a high level of salt, or sodium. Eating too much sodium can cause high blood pressure and lead to other health complications. Some brands also include a lot of sugar.
These added ingredients mean that, while popcorn does have lots of health attributes, people should choose specific types and include it as part of a healthful diet. However, eating sweetened or salted popcorn as a treat, from time to time, will usually not do any harm.