If a “picture is worth a thousand words,” here's a video that will give you a real education about the calorie content of six healthy meals (it's worth the 15-second commericial that precedes it).  If you need about 1,800 calories a day (check out our calorie needs calculator), the 300-calorie meals and snacks shown can add up to a day’s worth of good nutrition without busting your gut. 

Let us know your reaction to seeing what 300 calories of food looks like.