Medically reviewed by Melissa Nieves, LND Popcorn is a corn kernel that puffs up or pops when heated. It’s a favorite snack ...

Popcorn is a type of corn kernel that puffs up or "pops" when you heat it. It's low in calories and packs plenty of fiber, which makes it a healthy snack for weight loss. Many forms of popcorn ...

In its original form, popcorn is low in calories and fat. “Corn, and therefore popcorn, has health benefits,” says Dieras.