You won't want to eat just anything as you sit in front of your TV -- unless your goal is to gain a few pounds -- but there is one snack food you can shovel in without too much worry: Popcorn.

Get this: You can eat six cups of low-fat microwave popcorn for about the same number of calories you'd get from just seven or eight chips, says the RealAge team. Even better: Popcorn counts as a whole grain. So while munching, you're logging a few whole-grain servings too. Good news for your rainy days.

One caution: To benefit from this low-calorie, high fiber, whole-grain treat, you simply must avoid all buttery and salty options. Your best bet is to grab Orville Redenbacher, Pop Secret, and Jolly Time brands -- all offer 100-calorie microwave packs with five to six cups of popcorn in one bag.