Popcorn may not sound like what a healthy body needs, but there's good news to report on this front: Researchers have determined that coconut oil -- once considered a movie house villain -- actually plays a role in increasing immune function if you go the extra-virgin route. If you purchase the processed variety, you're doing your body harm [source: Watts]. Or you could skip the oil all together and air pop your corn.
In addition, popcorn is a whole grain and satisfies nearly three-fourths of the recommended daily amount of grains [source: Watts]. If you can avoid the temptation to slather it all in butter and coat it with salt, it's absolutely a guilt-free snacking option.