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 ...

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

Dietitians reveal the healthiest microwave popcorn brands you can buy, and also share which ones are best to leave on grocery store shelves.

As a snack, popcorn is relatively healthy. It’s a whole grain, has lots of fiber and fewer calories per ounce than many other salty snacks. That said, microwave popcorn typically includes palm ...